A parcel of air can rise relative to other air in the atmosphere under certain conditions. These include:
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WILL IVE BRAINLIEST!!
Describe how the life cycles of the grunion and the horseshoe crab are timed to the rhythm of the tides?
Answer:
Grunion (Leuresthes tenuis): life begins at high tide. During summer and spring, thousands of these fish swim up onto sandy beaches (carried in by high tide). This is called a grunion run, and it occurs ta night during the new moon and full moon when the tide is highest. The females wiggle into the sand and lay thousands of eggs as the males deposit sperm around them. Afterward, they are swept back into the sea. The spawning is timed so exactly that it occurs only on the second, third, and fourth days that follow a new or full moon. After the grunion eggs are fertilized, they incubate for two weeks until the next new or full moon occurs.
Horseshoe Crab (Limulus polyphemus): during late May and early June, vast numbers of horseshoe crabs come together in shallow bays, marshes, and inlets along the Atlantic and Gulf coasts, waiting to come up on the beaches to spawn. The signal to begin is provided by the moon. During the new and full moons, when tide is highest, the crabs come ashore. The female produces a cluster of tiny eggs on her abdomen, and the eggs are fertilized by the male's sperm, and then deposited out in the sand by the female. The next two weeks, the eggs incubate until they hatch during the next full or new moon. When the high water reaches the eggs, they hatch and go out into the ocean.
Explanation:
Answer: Grunion (Leuresthes tenuis): life begins at high tide. During summer and spring, thousands of these fish swim up onto sandy beaches (carried in by high tide). This is called a grunion run, and it occurs ta night during the new moon and full moon when the tide is highest. The females wiggle into the sand and lay thousands of eggs as the males deposit sperm around them. Afterward, they are swept back into the sea. The spawning is timed so exactly that it occurs only on the second, third, and fourth days that follow a new or full moon. After the grunion eggs are fertilized, they incubate for two weeks until the next new or full moon occurs. Horseshoe Crab (Limulus polyphemus): during late May and early June, vast numbers of horseshoe crabs come together in shallow bays, marshes, and inlets along the Atlantic and Gulf coasts, waiting to come up on the beaches to spawn. The signal to begin is provided by the moon. During the new and full moons, when tide is highest, the crabs come ashore. The female produces a cluster of tiny eggs on her abdomen, and the eggs are fertilized by the male's sperm, and then deposited out in the sand by the female. The next two weeks, the eggs incubate until they hatch during the next full or new moon. When the high water reaches the eggs, they hatch and go out into the ocean. brainliest?
Explanation:
QUESTION 1 Exercise 11.10. Butterflies. Alice, Bob, and Charlotte are looking for butterflies. They look in three separate parts of a field, so that their probabilities of success do not affect each other. • Alice finds 1 butterfly with probability 17%, and otherwise does not find one • Bob finds 1 butterfly with probability 25%, and otherwise does not find one • Charlotte finds 1 butterfly with probability 45%, and otherwise does not find one Let X be the number of butterflies that they find altogether. Write X as the sum of three indicator random variables, X1, X2, X3 that indicate whether Alice, Bob, Charlotte (respectively) found a butterfly. Then X= X1+X2 +X3. Find the expected value of X by finding the expected value of the sum of the indicator random variables. Your answer will have two decimal places. **This is a straight forward expected value of a sum of random variables, nothing fancy here! QUESTION 2 Exercise 11.16. Flipping coins. Flip a coin until the second head comes up. Let X be the number of flips needed to get the second head. What is the E(X). The first step is to find the expected value of getting the first head. Is this like Example 11.10, sampling without replacement, OR like Example 11.11, sampling with replacement? O A. Example 11.10, sampling without replacement O B. Example 11.11, sampling with replacement QUESTION 3 Exercise 11.16. Flipping coins. Flip a coin until the second head comes up. Let X be the number of flips needed to get the second head. What is the E(X). The first step is to find the expected value of getting the first head. What is the expected value of getting the first head? This will be an integer answer. QUESTION 4 Exercise 11.16. Flipping coins. Flip a coin until the second head comes up. Let X be the number of flips needed to get the second head. What is the E(X). The next step is to find the expected value of getting the second head. Because this is identical to finding the expected number of rolls for the first head (independent events), we just multiply the first head's expected value by 2. This will be an integer answer. QUESTION 5 Exercise 11.17 (a). Waiting for favorite song. Michael puts his iTunes on shuffle mode where songs are not allowed to be replayed. He has 2,781 songs saved on iTunes, and exactly one of these is his favorite. How many songs is he expected to have to listen to until his very favorite song comes up? Is this like Example 11.10, sampling without replacement, OR like Example 11.11, sampling with replacement? A. Example 11.11, sampling with replacement B. Example 11.10, sampling without replacement
In Exercise 11.10, the expected value of the number of butterflies found by Alice, Bob, and Charlotte is obtained by finding the expected value of the sum of three indicator random variables.
In Exercise 11.16, the expected value of the number of flips needed to get the second head in a coin flipping experiment is determined. These exercises involve different scenarios of sampling with and without replacement.
In Exercise 11.10, the expected value of X, the total number of butterflies found, is found by calculating the expected value of each indicator random variable (X1, X2, X3) representing whether Alice, Bob, and Charlotte found a butterfly, respectively.
The expected value of each indicator variable can be obtained by multiplying the probability of success (finding a butterfly) by 1 and the probability of failure (not finding a butterfly) by 0. Then, the expected value of X is calculated as the sum of the expected values of the indicator variables.
In Exercise 11.16, the expected value of X, the number of flips needed to get the second head, is determined. To find this value, we first need to find the expected value of getting the first head. This scenario is similar to Example 11.11, which involves sampling with replacement.
Each coin flip is an independent event, and the probability of getting a head is constant at 0.5.
Therefore, the expected value of getting the first head is 1/p, where p is the probability of success (0.5 in this case).
In Exercise 11.17 (a), the scenario of waiting for a favorite song in Michael's iTunes playlist involves sampling without replacement. Each song played is not replayed, and there is only one favorite song among the total number of songs.
Therefore, this scenario is similar to Example 11.10, sampling without replacement.
To find the expected number of songs Michael needs to listen to until his favorite song comes up, the formula for sampling without replacement is used, which is the reciprocal of the probability of selecting the favorite song at each step.
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Chromosomes condense, the nuclear envelope disappears, spindle fibers grow, and centrioles migrate to the poles of cell during the mitotic phase called
Answer:
Prophase
Explanation:
The Prophase characterizes because the chromatin finishes the condensation process, which began during the final stage of the interphase.
Individual chromosomes are now visible to optic microscopy. Each chromosome is composed of two sister chromatids joined by a centromere.
During the prophase, the pares of centrioles separate, each of them migrating to opposite poles. The spindle fibers form. At this point, nucleoles have already disappeared. The nuclear membrane breaks and disappears too, and genetic material gets in contact with the cytoplasm.
If a climate change occurs, resulting in increased aridity (severe drying) of areas previously covered by swamps with lush vegetation, predict which type of plants are more likely to survive ???
a. plants that reproduce using seeds
b. plats that reproduce using spores
c. the type of plant reproduction will have no effect on plant survival
d. all of the plant species will go extinct
e. all of the plant species will survive
Specify the dominant type of tectonic plate motion which led to orogeny during the Paleozoic Era
a. convergent
b. divergent
c. transform
State the correct order of appearance of vertebrates in the fossil record.
Fish, Reptile, Amphibian, Mammal
Reptile, Amphibian, Fish, Mammal
Fish, Amphibian, Reptile, Mammal
Reptile, Fish, Amphibian, Mammal
Amphibian, Fish, Reptile, Mammal
Predict what will happen to the diversity of shallow water marine invertebrates in Paleozoic epicontinental seas if there is a regression, which severely decreases the area of the continent covered by shallow water and the habitat.
a. invertebrate diversity will increase
b. invertebrate diversity will decrease
c. there will be no effect on invertebrate diversity
d. all of the invertebrates will go extinct
e. the invertebrates will learn to live on dry land
If a climate change occurs, resulting in increased aridity (severe drying) of areas previously covered by swamps with lush vegetation, predict which type of plants are more likely to survive.
a. there will be no effect on the vertebrates that inhabit the swamps
b. the size and diversity of vertebrates that lay their eggs in water will increase
c. vertebrates that lay can lay eggs in water will be more likely to survive
d. vertebrates that can lay eggs on dry land will be more likely to survive
e. all of the vertebrates will go extinct
If a climate change occurs, resulting in increased aridity (severe drying) of areas previously covered by swamps, predict the effect on vertebrates
a. there will be no effect on the vertebrates that inhabit the swamps
b. the size and diversity of vertebrates that lay their eggs in water will increase
c. vertebrates that lay can lay eggs in water will be more likely to survive
d. vertebrates that can lay eggs on dry land will be more likely to survive
e. all of the vertebrates will go extinct
The given questions are based on evolutionary changes occur due to adaptation to the modified surroundings as a consequence of survival of the fittest. If a climate change occurs, resulting in increased aridity of areas previously covered by swamps with lush vegetation, plants that reproduce using seeds are more likely to survive. Thus, the correct option is A.
1. If a climate change occurs, resulting in increased aridity (severe drying) of areas previously covered by swamps with lush vegetation, plants that reproduce using seeds are more likely to survive. Thus, the correct option is A.
2. The dominant type of tectonic plate motion that led to orogeny during the Paleozoic Era was convergent plate motion. Thus, the correct option is A.
3. Fish, Amphibian, Reptile, Mammal is the correct order of appearance of vertebrates in the fossil record. This sequence represents the evolutionary progression of vertebrates, with fish appearing first, followed by amphibians, reptiles, and finally mammals. Thus, the correct option is C.
4. If there is a regression, which severely decreases the area of the continent covered by shallow water and the habitat, the diversity of shallow water marine invertebrates in Paleozoic epicontinental will decrease. Thus, the correct option is B.
5. If climate change results in increased aridity of areas previously covered by swamps, the effect on vertebrates would be that vertebrates that can lay eggs on dry land will be more likely to survive. Thus, the correct option is D.
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Imagine a cell had a version of helicase that was permanently stuck at the origin of replication. Would this be considered a dominant negative mutant and why? Only one of the explanations below is correct (among the last 4 answer choices)
a yes...since it will prevent normal helicases from functioning.
b no...because it is an inactive protein.
c only if it was the only version of helicase in the cell.
d Yes...because there would be excess DNA replication.
Answer: A. yes...since it will prevent normal helicases from functioning.
Explanation: Imagine a cell had a version of helicase that was permanently stuck at the origin of replication. It would be considered a dominant negative mutant since it will prevent normal helicases from functioning.
How will hormone travel to its target organs?
A. Carried by neurons
B. Sweat glands
C. Carried by the blood
D. Carried in the digestive tract
Answer:
the answer is C no
Explanation:
It is the ans
Answer:
c
Explanation:
endocrine glands hormones directly into bliidstream
Part E: Write Your Paper
Write your research using your outline and the research you’ve collected. Be sure to proofread and revise your writing to catch any errors in grammar, spelling, logic, or cohesion. Remember that you must add a works cited page at the end of your paper to give credit to your sources. Write a a three- to five-page research paper that addresses these questions in detail:
Is a single cure for all cancers likely?
Curing cancer is often compared to curing an infectious disease. Is this a fair comparison?
a) It is possible to have a single cure for cancer as research advances.
b) Just as an infectious disease spreads to other people, cancer cells are able to spread throughout the body. This is a crude but fair approximation of the nature of cancer.
What is cancer?Cancer is a kind of disease in which there is a sudden development of malignant cells in the body. These malignant cells are able to reproduce rapidly and the reproduction of these cells would lead to the spread of the cancer.
There is the possibility of a single cure for all cases of cancer but this would depend on the furtherance of research into the etymology of the disease and its pathology.
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• All _______________ as we know it on Earth is dependent on __________________.
Answer:
scientific progress
individuals
Explanation:
In the scientific method: Select one: a. Hypotheses to be tested are formulated after collecting the data. b. Publication is an optional part of the process, mainly to further the careers of the scientists, but is not actually necessary. c. The self-correcting nature of science usually means that mistakes or even deceptions do not last long. d. None of the above.
In the scientific method, the self-correcting nature of science usually means that mistakes or even deceptions do not last long.
Scientific Method
The scientific method is the process chosen by scientists and researchers to investigate or verify a phenomenon. It involves various steps such as making an observation, asking the question, forming the hypothesis, collecting the data, testing the hypothesis, and deriving the conclusion.
Science is always self-correcting as every piece of information is scrutinized over and over again. Often disproving existing information with appropriate evidence is considered a prestigious and high achievement. This is unlike politics, religion, etc where such a person might get prosecuted. It is often regarded as the aim of science is not to proclaim a piece of information as absolute truth but to keep improving a piece of existing information.
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What class of mutations do you think would be less likely to lead to cf? explain your reasoning
Class IV and Class V mutations would be less likely to lead to Cystic Fibrosis (CF).
Class IV mutation or Conduction mutation involves reduced chloride conductance. It changes the shape of the protein channel so that chloride cannot move easily in and out of the cells. Less than 3% of people with cystic fibrosis in Europe have this type of mutation.
Class V or Insufficient Protein mutation is associated with reduced protein levels. It results in a reduction in the amount of CFTR protein produced by the cells. Less than 3% of people with cystic fibrosis in Europe have this type of mutation.
These two classes of mutations cause a milder reduction in CFTR function.
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what is the function of silkworm?
Answer:
The silkworm is the larva or caterpillar of a silk moth. It is an economically important insect, being a primary producer of silk. A silkworm's preferred food are white mulberry leaves, though they may eat other mulberry species and even the osage orange
The human body is organized into organs that carry out different functions. Which organ or organs filter blood to remove excess waste and water?
A. heart
B. kidneys
C. lungs
D. stomach
Answer:
Kidneys
Explanation:
Our kidneys work really hard actually. Without them we would surly die ( some live with only one). When you eat your food your kidneys tell the body whats waste. This is a topic I love to study I hope you get a fantastic grade.
-sci
In which country the lapsi is found,
Answer:
Nepal
Lapsi (Choerospondias axillaris) is a popular fruit tree that is found in Nepal and many other Asian countries.
Answer:
Nepal
Explanation:
Organic material in soil contain a substance called humus humus is defined as
A dark organic matter that form when plant and animal
B dark organic matter that forms from granites
C dark organic matter that froms from sand
an organism that grows slowly in the cold but has an optimum growth temperature of 32°c is called
An organism that grows slowly in the cold but has an optimum growth temperature of 32°C is called a mesophile. Mesophiles are organisms that thrive in moderate temperature ranges.
Mesophiles have an optimum growth temperature that falls within the mesophilic range, typically between 20°C and 45°C. These organisms are well-adapted to environments with temperatures similar to those found in the human body or in temperate regions.
While they can tolerate lower temperatures, their growth rate is significantly reduced in cold conditions. However, once the temperature reaches their optimum range, mesophiles exhibit optimal growth rates and metabolic activity. They are commonly found in diverse habitats such as soils, freshwater, and the human gastrointestinal tract, where the temperature is relatively moderate.
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Which of the following is true of gravity?
1 it is a pulling force
2 it holds objects in orbit
3 it is a bending of space
4 it can alter the path of light
5 all of the above
Answer:
5. All of the above
Explanation:
Hope this helps!
Mutations within an organism can occur in body cells or reproductive cells. Which type of mutation is seen in a spen
cell but not in a skin cell?
somatic mutation
• missense mutation
• nonsense mutation
• germline mutation
Answer:
answer is Germline mutation
select the abcc11 gene, the earwax gene. a mutation in this gene determines whether a person has wet earwax or dry earwax. looking at the template strand, what type of mutation occurs?
The ABCC11 gene is responsible for determining the type of earwax a person has. A mutation in this gene can lead to either wet or dry earwax. When examining the template strand, a single nucleotide polymorphism (SNP) is the type of mutation that occurs.
The ABCC11 gene is responsible for determining the type of earwax a person has. A mutation in this gene can lead to either wet or dry earwax. When examining the template strand, a single nucleotide polymorphism (SNP) is the type of mutation that occurs, specifically causing a change in the amino acid sequence and ultimately influencing the earwax consistency.
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You can find normal microbiota in and on all the following body regions EXCEPT theO skinO colonO upper respiratory systemO mouthO blood
The normal microbiota can be found in and on all body regions, excluding blood.
The microbiota is a diverse range of microorganisms that inhabit the body. It comprises bacteria, fungi, viruses, and other organisms that can live in the body's intestines, lungs, and skin surfaces. The following are the regions of the body where you can find normal microbiota: Skin, Colon, Upper respiratory system, Mouth, Normal microbiota cannot be found in blood.
The bloodstream is a sterile environment that does not allow bacteria to thrive. However, in certain circumstances, pathogenic microorganisms can penetrate the bloodstream and cause disease or infection by breaching protective barriers. Therefore, the correct answer is (F) blood, where normal microbiota cannot be found.
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I need help im tuck on a lab about weather pattern the probelm im having i i dont know what combination of factor make rain
i have
relative humidity
high
air temperature
warm
air preure
high
A combination of factors making rain is High humidity, warm temperatures, as well as high pressure.
So, the correct options are A, B, and C.
Droplets of water make up clouds. Water droplets grow larger when they condense onto one another within a cloud. Raindrops fall to Earth when these water droplets become too heavy to remain suspended in the cloud. Powdery snow that does not stick together is produced when snowflakes fall through cold, dry air.
When it is cold outside and the atmosphere contains moisture in the form of tiny ice crystals, snow is formed. Clouds are made of water vapor. Within a cloud, water droplets expand as they condense one on top of the other. Rain is formed when these water droplets become too heavy to remain suspended in the cloud.
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Which statement best describes natural selection?
A. Random assortment of genes results in better characteristics in the following generations
B. Some live and some die in each generation Only the largest and strongest survive
C. The most intelligent organisms in a population will evolve and form new characteristics
D. The best adapted individuals survive and reproduce, which passes their genes onto the next
generation
Answer:
d
Explanation:
trust me
Answer:
c
Explanation:
Natural selection is the process through which populations of living organisms adapt and change
The graphic below shows an unlabeled animal cell. In which location would genetic material most likely be found?
Answer:
Nuclues.
Explanation:
The nucleus holds the genetic information.
An animal lives in an environment that has a ambient temperature that ranges from 10 degrees Celsius to 45 degrees Celsius. The name keeps its internal body temperature at 35 degrees C. This is an example of which of the following?
A. Temperature equilibrium
B. Temperature feedback
C. Temperature regulation (AKA: thermoregulation)
D. Temperature conformation
Answer:
The correct answer is C. Temperature regulation (thermoregulation).
Explanation:
The animal's ability to keep its internal body temperature constant at 35 degrees Celsius despite changes in the ambient temperature of its environment is an example of temperature regulation (C), also known as thermoregulation.
Temperature equilibrium (A) refers to a state where the temperature of the organism and the environment are the same.
Temperature feedback (B) involves a response to changes in temperature, but it does not necessarily involve the maintenance of a constant internal body temperature.
Temperature conformation (D) is a process where the internal body temperature of an organism changes to match the temperature of the environment, rather than regulating its internal temperature independently.
Therefore, the correct answer is C. Temperature regulation (thermoregulation).
Please help! how does a cell control gene expression through transcription?
A. by preventing the production of mrna molecules
B. by preventing mrna from binding to ribosomes
C. by preventing the binding of amino acids
D. by changing how a protein is folded
Answer: A. by preventing the production of mRNA molecules
Explanation:
In order to control gene expression through transcription, a cell can regulate the production of mRNA molecules. This control is achieved through various mechanisms:
1. Cells can produce transcription factors that bind to specific DNA sequences called promoter regions. These transcription factors can either enhance or inhibit the binding of RNA polymerase, the enzyme responsible for transcribing DNA into mRNA. By controlling the availability and activity of transcription factors, the cell can regulate the initiation of transcription and thus control which genes are expressed.
2. The DNA in the cell is packaged into a complex called chromatin, which consists of DNA wrapped around histone proteins. The cell can modify the structure of chromatin through processes such as DNA methylation and histone modifications. These modifications can either promote or inhibit the accessibility of DNA to transcriptional machinery, thereby influencing gene expression.
3. Cells can use small RNA molecules, such as microRNAs (miRNAs) and small interfering RNAs (siRNAs), to regulate gene expression at the transcriptional level. These small RNAs can bind to mRNA molecules and prevent their translation into proteins or promote their degradation, leading to reduced expression of the corresponding genes.
While options B, C, and D are involved in other stages of gene expression or protein synthesis, they are not directly related to controlling gene expression through transcription. Therefore, the most accurate answer is option A, by preventing the production of mRNA molecules.
multiple choice
click all that apply
Answer:
change their activity (turning on or off)changing the association with other proteinschanging the localization in the cellExplanation:
Phosphorylation is an example of a post-translational modification of a protein. These modifications are covalently attached to the protein and can have significant effects on its function.
These affects include altering its activity, its binding to other proteins, and where it is found in the cell.
However, post-translational modifications do not affect the amino acid sequence of the protein.
Which statement best describes an organ? A. Different types of tissues work together to carry out a function. B. Cells of one type work together to carry out a function. OC. This is the simplest level of organization of life OD. This is the most complex level of organization of life
Explanation:
The statement that best describes an organ is:
A. Different types of tissues work together to carry out a function.
An organ is a structure composed of different types of tissues that work together to perform a specific function in an organism. Organs are more complex than cells and tissues, but they are not the most complex level of organization in life. The most complex level of organization would typically refer to systems or organisms as a whole.
I need help because this is important for my grade
Seasons are determined by the Earth's revolution around the sun and its obliquity.
What are seasons determined by?Seasons are determined two significant factors revolution, which is the way in which the earth orbits around the sun. obliquity, which is the inclination of the Earth's axis.
Obliquity refers to the plane in which the Earth moves around the sun, which has an inclination angle called ecliptic obliquity. It is not orthogonal to the rotation axis.
Depending on the location of the Earth concerning the sun, it receives more radiation in the nothern or southern hemisphere.
Also, we have the following seasons
Fall ⇒ shorter day time, lower radiation, colder.Winter ⇒ shortest day time, lowest radiation, lowest temperatureSpring ⇒ longer day time, more radiation, warmerSummer ⇒ longest day time, the highest radiation, highest temeperatureYou can learn more about seasons at
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i need an answer for these
The artifacts and their names are:
A, Air Bubble B, Seeds and PollenC, Plant Cells D, Fungal SporesWhy do plant cells have cell walls?Plant cells have cell walls because they provide structural support and protection to the cell. Cell walls are rigid structures made up of cellulose, hemicellulose, and other polysaccharides that are arranged in a specific way to form a mesh-like structure.
This structure allows the cell to maintain its shape, even under stress or pressure, and prevents it from bursting or collapsing. The cell wall also helps to regulate the movement of substances in and out of the cell and protects it from pathogens and other harmful agents.
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Image transcribed:
IDENTIFYING ARTIFACTS
Match the following artifact with its image.
A.
B.
C.
D.
Fungal Spares
Plant Cells
Seeds and Pollen
Air Bubble
Compare primary succession and climax community. Be sure to identify how long-term survival of species is dependent on resources that may be limited.
Answer:
Primary succession is the colonization of species of organisms on life-less barren lands after a volcanic eruption, newly formed land, or sand dunes. Lichens and mosses are the known primary succession community of organisms that helps in developing conditions for secondary succession by breaking rocks and providing soil.
After a fair amount of time, there are new species of organisms that grow and colonize in the land and these are, and ultimately the community becomes fairly stable. A climax community is a more stable, mature community that undergoes little or no change which can live for hundreds of years on the land.
The long-term survival of species is dependent on various kind of resources that may be limited, this can be explained by the lichens and mosses that have enough amount of nutrition and resources during primary succession but as new organism comes with complex structure and competes with these lichens and mosses their number decline due to limited amount of resources.
Is rapid population significant true or false?
Answer:
No . Because rapid population increases global warming ,pollution, deforestation,crime etc. So, it is false.