Answer:
Answer,
Before seed-bearing plants evolved, the only vegetative life was simple and consisted of mosses, liverworts and ferns.
Which of the following is a main difference when comparing an animal cell and a plant cell?
Plant cells lack cell walls and form fixed shapes.
Animal cells have chloroplasts and mitochondria.
Animal cells lack cell walls and are irregular in shape.
Plant cells have one vacuole, produce chloroplast, but do not have mitochondria.
Answer:
I think the answer is animal cells lack cell walls and irregular in shape animals do not have chloroplast because they do not manufacture their own food so chloroplast is only found in plants plants have cell walls
Answer:
its C
Explanation:
organisms may contain up to five levels of organization within their bodies. which level of organization is best represented by the liver
Answer:
Among the five levels,Liver shows third level of organisation. The 5 organisations in our body are cells--Tissues--Organs--Organ system--Human body.
what’s the answer to this question?
How is a protein's shape related to its function?
Answer:
"A protein's specific shape determines its function. If the three-dimensional structure of the protein is altered because of a change in the structure of the amino acids, the protein becomes denatured and does not perform its function as expected."
Explanation:
Just finished my research, I hope the answer above can help you
If the top level consumers were eliminated from a food web would the populations in the levels below them increase without bounds
Answer:
That isn't true
Explanation:
That is not true bc if the top level consumers were removed from the food chain, then the level below would become the top level of the food chain. If that happened then the level below the NEW top level of the food chain would still be getting eaten and the food chain still goes on, just with one missing level.
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Which food items can be broken down mostly into amino acids
Answer:
all bc it is
Explanation:
Parents and their offspring are usually very similar, but always slightly different. For example, certain moths can have offspring with either dark or light wings. Almost everything else about the moths is nearly identical, but the wing color and pattern may look very different. If the moths live in a forest with trees that have very dark bark, which newborn moth would have a survival advantage, the light winged moth or the dark winged moth? A) The dark winged moth, because its color will help it fly away from predators. B) The light winged moth, because its color will help it fly away from predators. C) The dark winged moth, because its color will help it blend with the environment. D) The light winged moth, because its color will help it blend with the environment.
Answer:
The answer is A.
Explanation:
Moth with dark wings under the tree with dark bark have a higher chance of surviving as its wings protect them from predator due to similar colour features.
Answer:The answer is C.
Explanation:If the bark is dark, then a dark winged moth will blend.
An element in a similar period to carbon would be______.
A. chlorine
B. magnesium
C. hydrogen
D. fluorine
Answer:
D
Explanation:
fluorine
Complete the following table that lists the effects of changes in membrane permeability and extracellular concentration for different ions: You should be able to predict the effect that each condition will have on the resting membrane potential. The membrane potential might be expected to depolarize (D), hyperpolarize (H) or not change (NC).IONS Chargepermeability (resting) Increase membrane permeability Increase extracellular concentrationsodium potassium chloride calcium
Oxygen moves passively into our cells. Which cell will experience the slowest rate of movement of oxygen from outside the cell into the cell?
Answer:
The oxygen molecules move, by diffusion, out of the capillaries and into the body cells. While oxygen moves from the capillaries and into body cells, carbon dioxide moves from the cells into the capillaries. Carbon dioxide is brought, through the blood, back to the heart and then to the lungs
Explanation:
What statements accurately describe matter? Check all that apply
The answer fam is........ Matter is made up of atoms, atoms cannot be divided If you have those answers then it's them my guy..
Answer:
matter is anything and everything. matter is what takes up space or anything has any amount of volume in it.
Explanation:
example of matter would be anything from a microscopic cell, to your pencil, to the ocean, etc. anything that takes up any amount of space.
Please help me with this bio work thanks
PLZZ help ( I’ll give u brainliest ) :D
antartic fish have antifreeze proteins in their blood
In a nuclear reaction, the fuel pellets are split using what ? This also causes a chain reaction
Answer:
A nuclear reactor is driven by the splitting of atoms, a process called fission, where a particle (a 'neutron') is fired at an atom, which then fissions into two smaller atoms and some additional neutrons. ... Two examples of nuclear fissioning of uranium-235, the most commonly used fuel in nuclear reactors.
Explanation:
State True or False:
A tree frog can live on a dry place.
Answer:
False
Explanation:
Trees supply the frog with moisture from its leaves and inner bark
Why are you white? /j
Answer:
Michael Scott's Dunder Mifflin Scranton Meredith Palmer Memorial Celebrity Rabies Awareness Fun Run Pro Am Race for the Cure
Explanation:
All healthy, highly productive ecosystems provide which of these essential ecosystem services that involve gases in the atmosphere?
A. Increasing carbon dioxide levels in the atmosphere by the action of plants and animals.
B. Removing carbon dioxide from the atmosphere and storing carbon in the tissues of organisms.
C. Removing water vapor from the atmosphere and using it to support plant growth.
D. Removing methane from the atmosphere and storing its carbon and hydrogen in the tissues of organisms.
Answer:
All healthy and highly productive ecosystems provide the essential ecosystem services that consist in removing carbon dioxide from the atmosphere and storing carbon in the tissues of organisms (option B).
Explanation:
The carbon cycle involves the path that this element has between the biosphere and the atmosphere.
As part of the carbon cycle, the carbon dioxide (CO₂) produced by the combustion of fossil fuels or organic matter and by the elimination of animals passes into the atmosphere, and must be removed.
Photosynthesis removes CO₂ from the atmosphere and converts it into organic compounds that are stored in plants. Plants, vegetables and fruits consumed by animals contain carbon that is incorporated into other living beings.
In a healthy and efficient ecosystem, CO₂ is removed from the atmosphere to become part of living beings, as organic matter.
The other options describe processes that are not related to the actual question formulation:
A. Atmospheric CO2 does not increase due to the action of plants.
C. Water vapor is not removed to contribute to plant growth, but rather the plants absorb water from the soil.
D. Methane is not removed from the atmosphere or incorporated into living systems.
which one is the definition for the thoery of continental drift?
A. Alfred Wegener's theory that all of Earth's landmasses were once connected into a larger supercontinent, called Pangaea, which later
broke apart
B. The theory that Earth's crust is broken into many larger pieces that move towards, away, or slide by one another.
C. A supercontinent that existed 350 to 200 million years ago
Answer:D
Explanation:
Jus took it
A group of blology students tests the growth of bacteria under different conditions. The students apply the same amount of bacteria to identical
Petri dishes enriched with nutrients, then place each plate at a different temperature. The bacteria are allowed to grow for three days, after
which the number of bacterial colonies on each plate is counted. What is the dependent variable in this experiment?
ФА
the nutrient type present in the Petri dishes
the time of day that the experiment is performed
ОВ.
the number of bacterial colonies after three days
OD
the temperature at which the colonies grew.
Answer:
A
Explanation:
only viable answer is a bc b and c are clearly stated different otherwise in the question. B would be ur unknown
Most migration abilities are learned responses?
Answer:
Most migration abilities are learned responses. The delicate balance of life within a biome can be disturbed by people's lack of knowledge. A danger signal sent by nerves is often felt as pain.
discribe what happends to the chromosomes in the anafase and the telophase
Answer:
During anaphase- each pair of chromosomes separates into 2 identical chromosomes
During telophase- the chromosomes move to the opposite ends of the cell and 2 nuclei are formed
Which of the following is NOT a difference between normal cell division and cancer
cell division?
O Normal cells recognize signals that tell them to stop and start the cell cycle, but cancer cells
do not
Normal cells can invade other tissues, but cancer cells cannot
In normal cells, DNA is replicated correctly, but in cancer cells DNA is mutated
O Normal cells communicate with each other, but cancer cells do not
In normal cells, DNA is replicated correctly, but in cancer cells DNA is mutated. This is not a difference between normal cell division and cancer cell division. Thus, option B is correct.
What is Apoptosis?
Apoptosis is the process in which cells are destroyed or killed for the purpose of controlling their development and growth. The normal cells follow this process but the cancer cell do not response to it and keep growing.
Normal cells can invade other tissues, but cancer cells cannot. In normal cells, DNA is replicated correctly, but in cancer cells DNA is mutated.The difference between a normal cell and a cancer cell is that a normal cells undergo while cancer cells don't Also, normal cells respond to signals while cancer cells don't.
Cancer cells are grow in the absence of signals telling them to grow. Normal cells only grow when they receive such signals. Ignore signals that normally tell cells to stop dividing or to die which is the process known as programmed cell death.
Therefore, In normal cells, DNA is replicated correctly, but in cancer cells DNA is mutated. This is not a difference between normal cell division and cancer cell division. Thus, option B is correct.
Learn more about cancer on:
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The total volume of plant cells is often significantly greater than the total volume in animal cells. The most reasonable explanation for this observation is that:_______
a. The total volume of plant cells is often significantly greater than the total volume in animal cells.
b. The most reasonable explanation for this observation is that plant cells have a much more highly convoluted (folded) plasma membrane than animal cells.
c. Animal cells are spherical, whereas plant cells are elongated. plant cells are capable of having a much higher surface-to-volume ratio than animal cells.
d. Plant cells contain a large vacuole that occupies much of the volume of the cell.
Answer:
d. Plant cells contain a large vacuole that occupies much of the volume of the cell.
Explanation:
The vacuole is a membrane-bound organelle which is often found in plant and fungi cells, as well as in certain bacteria, protists and animal cells. The vacuole is filled with water that forms a solution containing inorganic and organic compounds. The size of the vacuole may vary depending on the requirements of the specific cell type. In plant cells, vacuoles often occupy an important fraction of the overall cell volume and play key roles during growth and development, influencing diverse cellular functions ranging from photosynthesis to transpiration.
4. If the lab technician mistakenly added glucose instead of lactose in the medium, how
would the results and your interpretation of the results differ?
The coyote will become the apex predator and
greatly reduce the populations of foxes.
Gray Wolf
Elk
The coyote population will decrease because t
he gray wolf is the
coyote's main competition for food sources.
Insect
Beaver
Coyote
O
If another wolf is introduced to fit the same ni
che, the coyote population will decrease.
FOK
Plant
Fish
4.
As the number of coyotes increase, the numbe
r of beavers will decrease.
Observe the food web shown above. If the gray wolf became extinct,
what conclusion about the coyote population would not be valid
based on the relationships shown in the food web?
CLEAR ALL
Answer:
No, coyote will not become the apex predator.
Explanation:
No, coyote will not become the apex predator but greatly reduces the populations of foxes in order to reduce competition for available resources. Yes, The coyote population will decreases because t he gray wolf kills coyote to avoid competition for food resources. If another wolf is introduced to fit the same ni che, the coyote population will decrease because the wolf feeds on coyote. As the number of coyotes increase, the number of beavers will decrease because coyote feeds on beaver. If the gray wolf became extinct, the coyote population increases in that location due to no predator.
What are bio molecules?
Answer:
a molecule that is produced by a living organism.
Explanation:
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As temperature changes, how does the movement of particles change? Why does this happen?
Answer:
As temperature changes particles movement slows down, because they are not used to certain temperatures.
Explanation:
what would happen if the body kidney failed
A.the body with not be able to produce enough blood
B.the body will not be able to get rid of waste products made by cells
C.the body will not get sufficient amount of clean water
D.the body will not be able to dispose of carbon dioxide in the blood
Answer:
b
Explanation:
the kidneys clean out waste in your body
Answer:
The answer is B. The body will not be able to get rid of waste products made by cells.
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Students prepare for a debate about genetic engineering. Which statement supports the students’ argument for how genetic engineering may cause ethical concerns?
Genetic engineering can decrease the nutrients in plants.
Genetic engineering can cause harm to animals during tests.
Genetic engineering can provide cures for inherited disorders.
Genetic engineering can decrease the use of pesticides in crops.
Answer:
a
Explanation:
1. Each person's DNA contains certain genes that code for specific traits. List at least 15 traits that make up your body's appearance. Your traits are things like eye color, arm length, or foot size
Freckles, hair color, complexation, hair line, dimples, ect.
Answer/Explanation:
HeightHair colorEar lobe shapeSkin colourHair line (widow's peak)Eye shapeHair textureDimplesCleft chin (butt chin)FrecklesNose shapeLength of second toeTeeth gapsBent vs straight pinkyPosition of eyebrowsVariation in DNA alters the sequence of genes that control many physical traits. Above are examples of traits where some of the genes controlling the traits are known