B. advances in medicine
C. agricultural advances
E. building housing in a wide array of habitat types
The dramatic increase in human population sizes in the last several hundred years can be attributed to advances in medicine that have reduced mortality rates, agricultural advances that have increased food production, and the building of housing in a wide array of habitat types, allowing for more people to inhabit different areas.
Genetic mutations and expansion of biodiversity in cities have not been significant factors in the increase of human population sizes.
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During asexual reproduction in bacteria, a single bacteria splits into two. The genetic material of the new bacteria is probably-
The genetic material of the new bacteria that was formed as a result of asexual reproduction is probably the same.
What is asexual reproduction?Asexual reproduction is the form of reproduction that does not involve the fusion of gametes, hence, it requires only one parent cell.
Bacteria are single celled organisms that reproduce asexually by binary fission. In the process of binary fission, a bacterium splits to form two daughter cells.
However, the genetic constituents of the two bacteria cell are similar.
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_______ gland has functions as part of the endocrine system by secreting a hormone that functions as part of the endocrine and immune system
Thymus gland has functions as part of the endocrine system by secreting a hormone that functions as part of the endocrine and immune system.
Match each term with its definition Terms 1. Law of conservation of energy 2. Law of conservation of mass 3. Raymond Lindeman 4. Trophic level Definitionsa. energy cannot be created nor destroyedb. a biologist who studied ecosystem ecologyc. matter cannot be created nor destroyedd. a position in a food chain, a food web, or an ecological pyramid that is occupied by a group of organisms
1. The law of conservation of energy states that energy cannot be created nor destroyed. Therefore, the correct answer is A.
2. The law of conservation of mass states that matter cannot be created nor destroyed. Therefore, the correct answer is C.
3. Raymond Lindeman is consideres the founder of ecosystem ecology. Therefore, the correct answer is B.
4. Trophic level is a position in a food chain, a food web, or an ecological pyramid that is occupied by a group of organisms. Therefore, the correct answer is D.
Humans have 46 chromosomes in each of their body cells. Jason has a small cut on his right arm and his body cells are undergoing mitosis to repair the damage. How many chromosomes will be in each new body cell after cell division?
Answer:
23
Explanation:
For each of the following, 1. identify whether is is nonexcludable, nonrival, neither, or both and briefly explain your answer. and 2. determine which one or more of the following (a, b, c, d) would suffer from the free rider problem. Make sure to fully explain your answers:
a. The Great Smoky Mountains National Park (covers over 800 square miles, has dozens of access points for hiking trails located along public roads and highways).
b. a playground at a local park, such as Luetta Moore Park in Statesboro, GA (if you aren't familiar with Statesboro - it's an open playground in a residential area, there's a fence around part of it, but there's no gate/fence doesn't close)
c. National defense
d. A subway train
a. The Great Smoky Mountains National Park: Nonexcludable and rivalrous. Free rider problem likely.
b. Luetta Moore Park playground: Nonexcludable. No free rider problem.
c. National defense: Nonexcludable and nonrivalrous. Free rider problem exists.
d. Subway train: Nonexcludable. Free rider problem possible during peak hours.
a. The Great Smoky Mountains National Park: It is nonexcludable because it is difficult to prevent individuals from accessing the park. However, it is rivalrous as the park's resources, such as campsites or parking spaces, can be depleted. Both nonexcludability and rivalry suggest that the park is both nonexcludable and rivalrous. The free rider problem may occur since people can enjoy the benefits of the park without paying for its maintenance or preservation.
b. Playground at Luetta Moore Park: The playground is nonexcludable since it is difficult to prevent people from using it. However, it is nonrival as one person's use does not diminish the usability of the playground for others. Therefore, it is only nonexcludable. The free rider problem may not apply here since the use of the playground does not impose costs on others.
c. National defense: National defense is both nonexcludable and nonrival. It is nonexcludable because it is challenging to exclude individuals from benefiting from defense. It is nonrival because the defense provided to one person does not diminish the defense available to others. Both characteristics make national defense both nonexcludable and nonrival. The free rider problem is prevalent in national defense since individuals can benefit from defense without incurring the costs associated with it.
d. Subway train: A subway train is nonexcludable since it is difficult to prevent individuals from using it. However, it can be rivalrous during peak hours when overcrowding may limit the available space. Therefore, a subway train is only nonexcludable. The free rider problem may not be significant here as long as there are no capacity constraints or overcrowding issues.
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What effect did the zebra mussels have on the phytoplankton in the Hudson River ?
Answer:
As a result of the zebra mussels' huge appetite, populations of plankton in the Hudson River have fallen sharply. Microzooplankton, like the rotifer pictured below, have declined by 70%, while phytoplankton have decreased by 80%.
Explanation:
an increase in blood co2 levels is followed by a(n) ____ in h+ ions and a(n) ____ in blood ph.
An increase in blood CO2 levels is followed by a(n) increase in H+ ions and a(n) decrease in blood pH.
When CO2 is produced as a byproduct of cellular respiration, it diffuses into the bloodstream and combines with water to form carbonic acid (H2CO3) through the action of the enzyme carbonic anhydrase. Carbonic acid then dissociates into hydrogen ions (H+) and bicarbonate ions (HCO3-).
An increase in blood CO2 levels leads to an accumulation of carbonic acid, resulting in an increase in H+ ions. These additional H+ ions contribute to the acidity of the blood, leading to a decrease in blood pH. The relationship between CO2 levels, H+ ions, and blood pH is regulated by the bicarbonate buffer system, which helps maintain the acid-base balance in the body.
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What explains variation is seen from different aquatic ecosystem
The variation that is observed in different aquatic ecosystems can be attributed to a variety of factors such as the type of water body (lake, river, pond), the amount of sunlight and nutrients available, the presence of different species of plants and animals, and the degree of human impact on the ecosystem.
Each of these factors can contribute to the unique characteristics of a particular aquatic ecosystem, resulting in variations in water chemistry, species diversity, and overall ecosystem health. Understanding these variations is important for conservation efforts and for ensuring the sustainability of these important ecosystems. A collection of animals having a physical and chemical habitat centred on water constitutes an aquatic ecosystem. Aquatic ecosystems may be divided into two main categories: marine ecosystems, which are found in oceans and seas, and freshwater ecosystems, which are found in lakes, rivers, and wetlands. Aquatic environments contain a wide range of organisms that have developed to live in or near water, including plants, animals, and microorganisms
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How much is DNA important to identify a group? Give a brief explanation on race ,whiteness and property? Does biological anthropologists and genome scientist need to add the relation between Europeans and Indigenous people while doing their research?
DNA is important in identifying genetic relationships within a group, but it alone is not sufficient to determine complex social constructs like race, whiteness, or property; the inclusion of social, cultural, and historical factors is crucial in understanding these concepts.
Biological anthropologists and genome scientists should consider the relationship between Europeans and Indigenous people in their research to provide a more comprehensive understanding of human genetic diversity and population history.
DNA analysis can provide valuable insights into genetic relationships within a group, such as determining genetic ancestry or identifying related individuals. However, race, whiteness, and property are social constructs that go beyond genetic factors and are shaped by historical, cultural, and socioeconomic factors. These concepts are complex and cannot be solely explained by genetic data. Therefore, it is important for researchers, including biological anthropologists and genome scientists, to recognize the limitations of genetic data and consider the broader social context when studying race, whiteness, and property.
In the context of researching Europeans and Indigenous people, it is crucial for researchers to acknowledge and incorporate the historical and ongoing relationships between these groups. This includes understanding colonization, displacement, and the impact of power dynamics on genetic diversity and health outcomes. By including this relationship in their research, scientists can contribute to a more accurate and nuanced understanding of human genetics and promote social and scientific equity.
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What is the acid produced by stomach?
Answer:
Hydrochloric acid
Explanation:
Answer:
I think its Hydrochloric Acid
I'll give you a brainliest if is right or at least shows some effort
(thanks & i hope your having a good day)
In your own words, explain how stalagmites are formed in caves.
Explanation:
As the redeposited minerals build up after countless water drops, a stalactite is formed. If the water that drops to the floor of the cave still has some dissolved calcite in it, it can deposit more dissolved calcite there, forming a stalagmite. Speleothems form at varying rates as calcite crystals build up.Give several reasons why nutrition has become a national concern.
Answer: A healthy diet prevents malnutrition and protects from diseases like obesity, heart disease, diabetes, cancer and stroke. Today, many people's diets consist of more saturated fat, trans fats, sugars, and more sodium than fruits, vegetables and dietary fiber. Your body's health reflects what you put into it.
How do lemon sharks affect the mangrove ecosystem?
Answer:
Research shows that when newborn lemon sharks are displaced from their natural habitat, their so-called homing behavior kicks in, and the small sharks find their way back to the exact mangrove area where they were born. This even applies when the sharks are displaced to nearby islands with similar suitable habitats
Explanation:
How does the amount of nitrogen in inhaled air compare to the amount of nitrogen in exhaled air?
A. There is no nitrogen in either
OB. The nitrogen stays the same in both
C. There is more nitrogen in exhaled ait:
D. There is less nitrogen in exhaled air
Answer:
from my understanding your body doesn't do anything with the nitrogen so the answere would be B
What force is acting upon the roots?
explain the difference the structure of free and bound ribosomes.
Answer:
Hello! See the explanation below for an idea of the difference between free and bound ribosomes.
Explanation:
"Membrane-bound and free ribosomes are structurally and functionally identical. They differ only in the proteins they are making at any given time."
please choose the answer that explains how the chemical leukocidin, produced by s. aureus, affects the host. multiple choice the immune system is not able to make antibodies. it causes the production of boils all over the body. inflammation and phagocytosis are severely compromised. the skin begins to peel away from underlying tissues.
The correct answer is that leukocidin, produced by S. aureus, affects the host by causing inflammation and phagocytosis to be severely compromised. Therefore the correct option is option C.
Meaning:
Leukocidins are toxin-producing strains of Staphylococcus aureus that selectively target and kill white blood cells, or leukocytes.
White blood cells are essential for recognising and removing pathogens from the body, hence they play an important role in the immune system's response to illness.
Leukocidins, such as those produced by S. aureus, can severely impair the immune system's ability to respond to infection by killing off white blood cells, increasing the risk of acquiring serious infections.
This is especially true when S. aureus infections become systemic, as the bacterium can travel throughout the body and cause serious harm.
Symptoms:
While S. aureus infections can cause a wide range of symptoms and problems, skin and soft tissue infections, such as boils and abscesses, are the most prevalent presentations.
Because S. aureus is commonly resistant to many antibiotics, these infections can be difficult to treat. Therefore the correct option is option C.
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Which movement is associated with the hand but actually occurs in the forearm?
The movement which is associated with the hand but actually occurs in the forearm is the pronation and supination movement.
Pronation is a rotation of the forearm that causes the palm of the hand to face downward, as well as an inward rotation of the ankle so that the sole of the foot faces downward.
Supination is the opposite of pronation, in which the palm of the hand faces upward, or the outward rotation of the ankle so that the sole of the foot faces upward. When you do biceps curls, pronation and supination movement of the forearm are commonly used.
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Photosynthesis is an example of
Answer:
An example of photosynthesis is how plants convert sugar and energy from water, air and sunlight into energy to grow. The biological synthesis of chemical compounds in the presence of light.
Explanation:
write in short about Lamarckism natural selection and variation.
Explanation:
Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring. The doctrine, proposed by the French naturalist Jean-Baptiste Lamarck in 1809, influenced evolutionary thought through most of the 19th century. Lamarckism was discredited by most geneticists after the 1930s, but certain of its ideas continued to be held in the Soviet Union into the mid-20th century.
why was it important that mendel saw 3:1 ratios for multiple traits as opposed to only seeing it for flower color?
There is an emphasis on 3:1 ratios when learning genetics because they represent an important case by illustrating the impact of dominant-recessive relationships between alleles on mating outcomes.
The F2 generation produced a 3:1 ratio where the dominant trait is present three times as compared to the recessive trait. Mendel used two terms to describe the relationship of the two phenotypes based on F1 and F2 phenotypes. The hereditary determinants are of specific nature. In 3:1 ratios , there are three progeny with the dominant phenotype for every one with the recessive phenotype
This implies that three offspring will have a dominant phenotype and there is one offspring that will have a recessive genotype, that is the recessive phenotype. Hence, the overall ratio of dominant to recessive phenotypes is 3:1.
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How might scientific knowledge about monoculture farming affect societal decisions?
Answer:
In mono-culture cultivation, a specific animal or plant category is produced in large amounts.
Explanation:
Although it is very successful, the development of a mass amount of a living individual in a region can threaten the life of a specific substance (because the massive number of organisms eat essentially the same thing) leading to societal judgments such as the establishment of the conservation group of cattle or other protecting the environment organisation
Answer:
People could choose to practice organic farming, heirloom plants, or use GMOs. Governments could pass laws to limit the use of monoculture farming. Governments could pass laws requiring people to use alternate farming methods.
Explanation:
got it right on edge
TRUE/FALSE. the path urine takes after it is formed until it leaves the body is the urethra, urinary bladder, and finally the ureter.
The path urine takes after it is formed until it leaves the body is through the urethra and urinary bladder. Given statement is FALSE.
The urine is initially formed in the kidneys, then it travels through the ureters to reach the urinary bladder, where it is stored. When it is time to eliminate urine from the body, it passes out of the body through the urethra. The urethra serves as the tube that carries urine from the bladder to the external opening, allowing it to be excreted. The ureters, on the other hand, are responsible for transporting urine from the kidneys to the bladder, not from the bladder to the outside of the body.
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Complete Question
TRUE/FALSE. The path urine takes after it is formed until it leaves the body is through the urethra, urinary bladder, and finally the ureter.
The light- independent reactions are also called the _____.
Answer: The light-independent reactions are also called the dark reactions or the Calvin cycle.
I hope this helps!
The wide variety of organisms present in coral reefs and their complex relationships make coral reef preservation an important priority. Please select the best answer from the choices provided T F
Answer:
TRUE
Explanation:
All organisms work together to make the reef dynamic and complex entity.
Pattipan squash are either white or yellow. In growing Pattipans, you notice that if you want to get yellow Pattipans at least one of the parents must be yellow. Which color is dominant?
Explain.
Answer:
yellow
Explanation:
Yea it's yellow cus yea it's yellow
the fluidity of the lipid side chains in the interior of a bilayer is generally increased by: a decrease in temperature an increase in fatty acyl chain length an increase in the number of double bonds in fatty acids an increase in the percentage of phosphatidylethanolamine the binding of water to the fatty acyl side chains
Answer:
see the explanation
Explanation:
I think the answer may be the
amount of the length doubled
The following table describes several molecules and their functions. The molecules all belong to the same class.
Molecule Function
Oleic acid used for energy storage and insulation in whales
Phospholipid component of cell membranes in plants and animals
Brassinosteroid steroid hormone involved in pollen elongation in plants
Which class of biomolecule do the molecules in the table belong to?
A.
lipids
B.
carbohydrates
C.
proteins
D.
nucleic acids
Answer:
A.lipids
Explanation:
The example of lipid includes the Oleic acid, phospholipids, and brassinosteroid hormone. It is to be found in the various organism in different kind of forms and also it performs various kind of functions. It means the un-polar, unsoluble organic compounds that involved natural oils, etc
The oleic acid defines the fatty acid that represent the insulator in the body. The Phospholipids defines the cell membrane fatty acids. And, Brassinosteroieds represent the plant molecule that signaled
Therefore, the option a is correct
Answer:
Lipids
Explanation:
sutures have a little movement??
Sutures have limited mobility or slight movement within their range.
The borders of a wound or incision are frequently held together during medical operations using sutures, also known as stitches. Sutures do permit some movement, despite being designed to hold the tissues in place and encourage healing.
This slight movement is intentional and serves a few purposes. Firstly, it accommodates the natural movements of the body without placing excessive tension on the wound, which can hinder healing. Secondly, it allows for drainage of fluids and minimizes the risk of fluid accumulation.
Lastly, the slight movement of sutures assists in reducing scar formation by distributing tension along the incision line. However, it is important to note that excessive movement or tension on sutures can compromise wound healing and should be avoided.
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Which of these are characteristics of viruses? (Select all that apply.)
- not living organisms
- are decomposers
- are single-celled
- cannot reproduce without a host
The characteristics of viruses are as follows:
not living organismsare single-celledcannot reproduce without a hostWHAT ARE VIRUSES?Viruses are organisms that are incapable of reproducing without a living host.
Viruses are classified as non-living because they do not exhibit the properties that are typical of living organisms e.g. growth, reproduction etc.
Therefore, it can be said that the characteristics of viruses are as follows:
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