Answers
Answer:
Mosses and ferns both have free-living gametophyte generations. This means that these haploid life stages carry out photosynthesis and are not dependent on their parental sporophyte generation for nutrition. The moss is the gametophyte, and its sporophyte generation will be dependent on it for nutrition.
Related Questions
While heating two different samples of water at sea level, one boils at 102°C and one boils at 99.2°C. Calculate the percent error for each sample from the theoretical 100.0°C.
Answers
The percent errors are 0.8 percent and 2 percent
It is given that the theoretical boiling point of water is 100.0 degree celsius
When any impurity is added to water, its boiling and freezing points increase or decrease accordingly.
We are required to find the percentage error in calculation of freezing point or in simple words deviation from theoretical value of 100 degrees
We are given two temperatures
Case 1:
When the boiling point is 99.2 degree
deviation from theoretical value= 100-99.2 = 0.8 degrees
Percent error in calculation from theoretical value =deviation/original value x 100
= 0.8 /100 x 100 = 0.8 per cent
Case 2:
When the boiling point is 102 degree
deviation from theoretical value= 102-100 = 2 degrees
Percent error in calculation from theoretical value =deviation/original value x 100
= 2/100 x 100 = 2 per cent
Hence the percent errors are 0.8 percent and 2 percent
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Select the photosynthetic molecule that gives halobacteria its unique color.
a.) Caratenoids
b.)Thylakoids
c.)Bacteriochlorophylls
d.)Bacteriorhodopsin
Answers
Answer:
Bacteriorhodopsin
Explanation:
Purple Halobacterium species owe their color to bacteriorhodopsin, a light-sensitive protein.
QUICK AND NO LINKS OR YOU WILL BE REPORTED
What evidence shows that the universe is expanding?
A.
galaxies are moving closer together
B.
galaxies are moving apart
C.
the number of galaxies is growing
D.
galaxies are getting bigger
Answers
Answer: B
Explanation:
Characeter
The countries with the highest populations in the world have the fastest population growth.
Answers
Explanation:
In South Sudan, the population grew by about 5.05 percent compared to the previous year, making it the country with the highest population growth rate in 2021
The study of the connection of the roles of different animal systems is called
Answers
The connection between different animal systems is a part of ecology study, in which every animal plays a different role to balance the ecosystem.
What is ecology?In the ecology study of the interaction between organisms and their abiotic environment, different animal systems play different roles.
In a particular ecosystem, every organism is dependent on others to maintain a balanced life which affects its surrounding environment.
An animal system is a group of animals in a particular habitat that describe a particular species interaction in which an organism interacts with its surrounding environment.
Therefore ecology is the study of connections between different animal systems.
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what is a component of cell membranes that does not float?
a) cholesterol
b) carbohydrate
c) phospholipids
Answers
Describe the development of the zygote until implantation occurs.
Answers
What is the difference between blue green and fungi?
Answers
Blue-green algae are photosynthetic prokaryotes, while fungi are eukaryotes that obtain nutrition through absorption.
Blue-green algae and fungi are both organisms, but they belong to different domains and have distinct characteristics. Blue-green algae, also known as cyanobacteria, are classified under the domain Bacteria, while fungi belong to the domain Eukarya.
Blue-green algae are prokaryotic organisms, lacking a true nucleus and membrane-bound organelles. They obtain energy through photosynthesis and are capable of converting sunlight into chemical energy. They typically inhabit aquatic environments, such as lakes, ponds, and oceans, and some species can fix atmospheric nitrogen.
On the other hand, fungi are eukaryotic organisms with a distinct nucleus and membrane-bound organelles. They obtain nutrition by absorbing organic matter from their surroundings. Fungi play crucial roles in decomposition and nutrient cycling in ecosystems. They can be found in various habitats, including soil, plants, and even as symbiotic partners with other organisms, such as in mycorrhizal associations.
In summary, the primary differences between blue-green algae and fungi lie in their cellular structure, mode of nutrition, and classification. While blue-green algae are photosynthetic prokaryotes, fungi are eukaryotes that obtain nutrition through absorption. Understanding these distinctions helps in appreciating the diversity and ecological significance of these two groups of organisms.
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Fluid mosaic model diagram
Answers
The fluid mosaic model represents the model of the cell membrane showing the phospholipid bilayer as well as the proteins, lipids, and carbohydrates that are found on the cell membrane.
What is the fluid mosaic model?The fluid mosaic model explains a number of findings about how functional cell membranes are built.
This biological model proposes that protein molecules are encapsulated within a lipid bilayer. The membrane is flexible and flowing due to the fluid nature of the phospholipid bilayer as well as the proteins and lipids present.
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What are the 3 main pros and 3 main cons of climate change ? and explain why they are a pros and a cons.
Answers
1. Trauma from floods
2. Droughts
3. Heat Waves
4. More heat = longer allergy seasons and more respiratory diseases.
The pros to climate change would include anything positive. Soooo
1. Fewer winter deaths
2. Low energy costs
3. Better agricultural yields
4. Fewer droughts.
Here is your conclusion.
Climate change may have a couple of pros but overall it’s terrible and we don’t want it to happen. It’s dangerous and could end the world. We need to take care of our earth and it’s as simple as not littering. Climate change is bad and just about every living thing would go extinct. Aka animals and humans.
12 Answer:
In the early years of human existence, most of the time was
spent _____.
13 Answer:
One of the limits of using scientific analysis to identify food is
that machines can only extend the _____ that humans already have.
14 Answer:
The _____ fish is an expensive Japanese delicacy that must be
caught at the right time and prepared properly to avoid poisoning the
eater.
15 Answer:
Nutrients, texture, and flavor-aroma are examples of food _____.
16 Answer:
The higher a species is on the _____, the more dependent it is on
other species to process or use some forms of food for it.
17 Answer:
Today, 88 percent of the calories and 80 percent of the protein in
human diets is supplied by _____.
Answers
The correct options to fill in the gaps for food choices and properties are:
food.choicesfugufood properties.food chainother animals.What is food?Food is the substance which is living organisms take in to provide energy and nutrients required for growth.
In the early years of human existence, most of the time was
spent searching for food.
One of the limits of using scientific analysis to identify food is
that machines can only extend the choices that humans already have.
The fugu fish is an expensive Japanese delicacy that must be
caught at the right time and prepared properly to avoid poisoning the
eater.
Nutrients, texture, and flavor-aroma are examples of food properties.
The higher a species is on the food chain, the more dependent it is on
other species to process or use some forms of food for it.
Today, 88 percent of the calories and 80 percent of the protein in
human diets is supplied by other animals.
In conclusion, food is essential to life.
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Which does NOT represent negative feedback?
Includes most homeostatic control mechanisms
Shuts off the original stimulus, or reduces its intensity
Works like a household thermostat
Examples include blood clotting and childbirth
Answers
Drag each label to the correct location.
Categorize the structures as homologous or analogous
the mammalian tail and
the human coccyx (tail bone)
the leaves of pitcher plants
and cacti
the flippers of penguins
and dolphins
the bills of ducks
and platypuses
Homologous
Reset
Next
the shells of turtles
and crabs
Analogous
Answers
The analogous organs include shells of turtles and crabs and flippers of penguins and dolphins. While the homologous organs include the leaves of pitcher plants and cacti and mammalian tail and the human coccyx.
What are homologous and analogous organs?The homologous and the analogous structures are used as evidence of the comparative anatomy. They are important in determining the pattern of evolution and ancestry.
The homologous organs are characterized by similar structures that vary in functions. The leaves of pitcher plants and cacti and mammalian tails and the human coccyx have a similar anatomical structure but are used for various purposes.
The analogous organs have the same function even when they have different structures like the shells of turtles and crabs and flippers of penguins and dolphins. The shells protect both turtle and crab, while flippers are used to swim.
Therefore, the shells of turtles and crabs and flippers of penguins and dolphins are analogous organs.
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Find out why mars would be a good choice for a human colonly. Also give some bad choices;
sight your sources '
helpp ill mark brainliest
Answers
Answer:
It has air but also lakes can be built to provide water to people living on it
Write long answers to these questions.
a. 'The Brain and the Spinal cord are the central part of the nervous
system." Illustrate this statement with four supporting points.
Answers
Sure, here are four supporting points to illustrate the statement that the brain and spinal cord are the central part of the nervous system:
1. The brain and spinal cord are the two main parts of the nervous system.
2. The brain is the control center of the nervous system. It receives information from the senses and sends out commands to the muscles.
3. The spinal cord is a long, thin bundle of nerves that runs from the brain down the back. It carries messages between the brain and the rest of the body.
4. The brain and spinal cord are protected by the skull and the spinal column.
In addition to these four points, the brain and spinal cord are also responsible for many other important functions, including:
* Thinking
* Learning
* Memory
* Emotions
* Movement
* Sensation
* Regulation of body functions
Without the brain and spinal cord, the nervous system would not be able to function properly. This would mean that we would not be able to think, learn, move, or feel anything. We would also be unable to regulate our body temperature, heart rate, or breathing.
In short, the brain and spinal cord are essential for life. They are the central part of the nervous system and they control all of our thoughts, feelings, and actions.
1. The brain is the control center of the nervous system: The brain is responsible for processing all incoming sensory information and making decisions about how to respond to it. It is also responsible for coordinating and controlling all voluntary and involuntary movements and actions.
2. The spinal cord connects the brain to the rest of the body: The spinal cord is a long, narrow bundle of nerve fibers that extends from the brain down through the center of the back. It acts as a conduit for sensory and motor information between the brain and the rest of the body.
3. The brain and spinal cord work together to regulate bodily functions: The brain and spinal cord work together to regulate a variety of bodily functions, including breathing, heart rate, digestion, and sleep. They also play a key role in maintaining homeostasis, which is the body's ability to maintain a stable internal environment.
4. Damage to the brain or spinal cord can have serious consequences: Because the brain and spinal cord are responsible for so many critical functions in the body, damage to these structures can have serious consequences. For example, spinal cord injuries can result in paralysis, while damage to specific regions of the brain can result in cognitive, emotional, or motordeficits.
In summary, the brain and spinal cord are the central part of the nervous system and are responsible for processing and coordinating sensory information, controlling voluntary and involuntary movements, connecting the brain to the rest of the body, regulating bodily functions, and maintaining homeostasis. The importance of the brain and spinal cord cannot be overstated, as damage to these structures can lead to serious consequences for an individual's physical, cognitive, and emotional well-being.
A stimulus causes a change or response in an organism.
O True
O False
a
Answers
Answer:
the answer is true
Explanation:
I hope that's helps
A stimulus causes a change or response in an organism. This statement is true.
What is Stimulus?A stimulus is defined as a detectable change in the physical or chemical composition of an organism's internal or external environment. It is the ability of an organism or organ to detect external stimuli so as to make an appropriate response is called sensitivity.
A stimulus can also cause an action or response which is like the ringing of the alarm clock even if we didn't sleep through it. The stimulus can include:
Irritants.Sights.Smells.Sounds.Temperature changes.A stimulus causes a change or response in an organism where the shape of a cell can tell about the job the cell is doing. Cell theory is the result of one person's hypothesis and observation.
Thus, a stimulus causes a change or response in an organism. This statement is true.
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yinto uxinzelelo lwengqondo?
Answers
Answer:
ni se la respuesta estoy respondiendo sólo para ganar puntos
What was the effect of the assembly-line method of production in the automobile industry?
Answers
Answer:
On December 1, 1913, Henry Ford installs the first moving assembly line for the mass production of an entire automobile. His innovation reduced the time it took to build a car from more than 12 hours to two hours and 30 minutes.

In the movie, Tim says that genetic
mutations are permanent changes
to DNA or RNA. What does this
mean?
Answers
Answer:
when one oxygen ia removed from Dna it changes into rna
Question:
___ uses data collected by satellites combined with data collected at street level to
create detailed maps.
Answers
Answer:
A geographic information system (GIS)
Explanation:
Hybrid mapping uses data collected by satellites combined with data collected at street level to create detailed maps.
What is Hybrid mapping?Hybrid mapping is a type of mapping that combines data collected from satellites and data collected at street level. This allows for the creation of more detailed and accurate maps than can be created with either type of data alone.
Satellite data can provide a wide view of an area, but it can be low-resolution and may not show features that are close to the ground. Street-level data can provide high-resolution images of features close to the ground, but it can be difficult and time-consuming to collect
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For humans, brown eyes (B) are dominant over blue eyes (b). If a heterozygous brown-eyed male had a child with a blue-eyed female, what percentage of the offspring (F1 generation) would have blue eyes?
Answers
Answer:
50%
Explanation:
When you use a monohybrid cross you will get Bb, Bb,bb,bb
Since the brown eyed are heterozygous.
Define movement and locomotion
Answers
Answer:
All movements are not locomotion, but all locomotion are movement.
Explanation:
Movement:Displacement from a posture or postion is called Movement.Examples:Streaming of ProtoplasmCillia, Flagella, TentaclesLimbs, Jaws, Eyelids, TongueHeartbeatDiaphragm (Up - Down)Locomotion:Movement of whole body of an Organism resulting in change in place is called locomotion (Voluntary Movement)Examples:Walking - RunningClimbing - FlyingSwimming - CreepingNOTE:All movements are not locomotion, but all locomotion are movement.
-TheUnknownScientist 72
In the lock-and-key model of enzyme action, the enzyme active site is thought of as ________.
Answers
Answer:
Rigid and non flexible surface
Explanation:
Enzymes are catalyst that speeds up rate of chemical reactions, they bind to a substrate which are known as reactant substrate to speed up rate of chemical reaction and to unlock the key.
The enzyme is said to be rigid and non flexible fitting perfectly to the surface of the substrate where the reaction takes place. Fitting perfectly enable the enzyme to perform its action on the substrate unlocking the key and activating the action in the molecule.
25 points
Complete the sentence. Carbon flows between ____________, environmental storage centers that absorb and store carbon for long periods of time.
plants and animals
humans and air
rocks and soil
carbon sinks
Answers
Carbon is transfered by plants and animals.
Carbon flows between plants and animals, environmental storage centers that absorb and store carbon for long periods of time. Thus, the correct option is A.
What is Carbon cycle?Carbon cycle is one of the main biogeochemical cycles which has four main steps. In this first, carbon enters into the atmosphere as CO₂. CO₂ is absorbed by the autotrophs such as green plants for photosynthesis. Then, the animals consume plants as food, thereby, incorporating the carbon into their system. Afterwards, animals and plants die, their bodies decompose and the carbon is reabsorbed back into the atmosphere.
In this, plants use carbon dioxide for photosynthesis. Through this, they remove the inorganic carbon from the atmosphere and incorporate it into the plant's tissues in the form of sugars such as glucose, sucrose and starch. Animals get carbon by eating the plants or by hunting other animals.
Therefore, the correct option is A.
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Please help with this diagram
Answers
Animal
1. Cell Membrane
2.Cytoplasm
3. Rough ER
4. Nucleolus
5.Smooth ER
6.Nucleus
7.Ribosomes
8. Vacuole
9.Golgi Apparatus
10.Mitochondria
Plant
1.Cell Wall
2.Cytoplasm
3. Cell Membrane
4. Central Vacuole
5. Rough ER
6. Nucleolus
7.Smooth ER
8.Nucleus
9. Ribosomes
10. Chloroplast
11. Golgi Body
12.Mitochondria
The pea aphid, a type of insect, contains light-capturing pigments in its exoskeleton. Scientists hypothesize the pea aphids gained the ability to synthesize these pigments from genes transferred from fungi during evolution. While pea phones do not have chloroplasts or fix carbon, researchers have found that pea aphids with more pigments have higher levels of ATP than those fewer pigments. Pea aphids also have been shown to increase production of ATP when exposed to sunlight.
Based on this information, is the pea aphid a true autotroph?
Answers
The pea aphid isn't a true autotroph because it is unable to use the energy from sunlight.
What is a true autotroph?A true autotroph is an organism that produces biomass by a chemical process called photosynthesis.
This type of autotroph generates biomass by means of photosynthetic cycles of production.
In conclusion, the pea aphid isn't a true autotroph because it is unable to use the energy from sunlight.
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Which organisms can reproduce using the process of fragmentation
Answers
Fragmentation is a form of asexual reproduction and is seen in annelids, fungi, cyanobacteria, sponges, and flatworms.
In Fragmentation, an organism divides itself into a number of fragments. It occurs when an organism completely breaks down independently irrespective of the other parts. Each one of these fragments matures into fully grown adults that are clones of the original organism.
Asexual reproduction usually involves the participation of a single parent alone can produce new offspring. The newly produced individual is genetically identical to one another and its parent. Both multicellular and unicellular organisms divide by fragmentation which is asexual reproduction.
Fragmentation is the most common method of reproduction in lower invertebrates. It is seen in many organisms including filamentous cyanobacteria, algae, lichens, molds, many plants, and animals such as flatworms, annelid worms, sponges, and sea stars.
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The organisms that can reproduce by fragmentation are Option d Sponges and Sea anemones.
Fragmentation is a form of asexual reproduction in which an organism breaks into two or more fragments, and each fragment develops into a new individual. Both sponges and sea anemones are examples of organisms that exhibit this mode of reproduction.
Sponges are simple multicellular animals that lack true tissues and organs. They possess a porous body structure, and when a sponge is fragmented, each fragment has the potential to develop into a new sponge through regeneration. These fragments contain specialized cells called archaeocytes that can differentiate into various cell types required for the formation of a new sponge.
Sea anemones, on the other hand, are marine animals belonging to the phylum Cnidaria. They have a cylindrical body with tentacles surrounding their mouth. When a sea anemone is fragmented, each piece can regenerate into a complete individual. The process involves the differentiation of cells within the fragments, leading to the development of new tentacles, body parts, and eventually a mature sea anemone.
Both sponges and sea anemones have remarkable regenerative abilities, allowing them to reproduce through fragmentation. This form of asexual reproduction enables them to colonize new areas, expand their population, and adapt to changing environmental conditions. Therefore the correct option is D
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The Question was Incomplete, Find the full content below :
The organisms which can reproduce by fragmentation are:
(a) Corals and Sponges
(b) Corals and Spirogyra
(c) Sea anemone and Spirogyra
(d) Sponges and Sea anemones.
The theory of endosymbiosis proposes that eukaryotes descended from a primitive combination of both archaea and bacteria. What evidence supports this theory?
Answers
The theory of endosymbiosis proposes that eukaryotes descended from a combination of both archaea and bacteria. Evidence that supports this theory includes the similarities between mitochondria and chloroplasts to free-living bacteria, the presence of double membranes around mitochondria and chloroplasts, and the fact that mitochondria and chloroplasts have their own DNA.
Explanation:
The theory of endosymbiosis proposes that eukaryotes descended from a combination of both archaea and bacteria. Evidence that supports this theory includes the similarities between mitochondria and chloroplasts to free-living bacteria, the presence of double membranes around mitochondria and chloroplasts, and the fact that mitochondria and chloroplasts have their own DNA.
Mitochondria and chloroplasts contain some of the same enzymes and transport systems as bacteria, and are similar in size and shape to bacteria. In addition, they both reproduce by binary fission, similar to bacteria. The presence of double membranes around mitochondria and chloroplasts also supports the theory of endosymbiosis, as this suggests that the organelles were engulfed by the host cell and retained their own membranes.
Finally, mitochondria and chloroplasts have their own DNA, which is circular like bacterial DNA. The DNA of mitochondria and chloroplasts also lacks histones, which are present in eukaryotic DNA, and is more similar to bacterial DNA in terms of gene expression and replication.
Together, these lines of evidence support the theory of endosymbiosis and suggest that mitochondria and chloroplasts were once free-living bacteria that were engulfed by a host cell and evolved into the organelles found in eukaryotic cells today.
Help in class rn What weather tool is used to messaure pressure and would therfore mot likey be used to study tornados?
Answers
Answer:
A barometer is a weather tool used to measure air pressure.
Explanation:
What method of forecasting uses the effects of past weather conditions as part of its forecasting method? A. Persistence method B. Analog method C. Climatology method D. Trends method
Answers
Answer:
analog forcasting
Explanation:
Answer:B
Explanation:Analog method
