phytoplankton
b.
zooplankton
c.
kelp
d.
fish
The correct answer is a. phytoplankton.
Phytoplankton or microalgae are unicellular photosynthetic organisms.Dinoflagellates and diatoms are the two classes of phytoplankton. They float on the surface of the ocean water and are primary producer in the ocean. They provide food for marine animals such as whales, shrimp, snails and jellyfish. In presence of many nutrients in the ocean, phytoplankton may grow out of control to form harmful algal blooms.
1. Captive breeding: We capture and wait for two organisms of the same species to breed.
2. Laws: Create laws to limit the amount of organism killings.
3. Preserve Habitats: Preserve natural habitat so that animals can breed.
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Answer:
The real answer to this question is about 10% of the stored energy of one level becomes stored energy at the next level higher.
Think about it, when a consumer eats the producer it also consumes the energy the producer stored and as the food chain grows the energy is passed through all. The only time the energy is released into heat is when a consumer dies and decomposes, and even then all of the energy isn't released.
Also took the quiz
The choice that is true of the energy that is passed from one trophic level to the next in a food chain is about 10% of the energy passed from one level to the next is released as heat.
B) Birch trees become covered in black ash from nearby factories.
C) Heavy rainfall causes birch trees to grow taller than normal.
D) Disease kills off more than half of the birch tree population.
The ash would help darker colored mothscamouflage on the bark. Therefore, option (B) is correct.
The process through which populations of living things adapt and evolve is known as natural selection. A population's members are naturally varied, which means that they are all distinctive in some respects. This variety indicates that some people have characteristics that are more environment-appropriate than others.
The peppered moth is a type of night-flying moth that lives in temperate regions. The majority of its occurrences are in the northern hemisphere, specifically in regions such as Asia, Europe, and North America. The evolution of the peppered moth is an illustration of population genetics and natural selection in action.
Black ash from adjacent industriescoats birch trees. Ash would aidmoths with darker colours in hiding on the bark. As a result, choice (B) is the right one.
Learn more about natural selection, here:
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Answer: B
Explanation:
The ash would help darker colored moths camouflage on the bark
water contracts when it freezes
heat can cause minerals to oxidize
rocks usually melt in the hot sun
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When wet rocks dry out, they can crack and break. This process, called slaking, is an example of what?
chemical weathering
physical weathering
water erosion
wind erosion
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In which of the following locations would chemical weathering happen most quickly?
Amazon rainforest
Sahara desert
North Pole
Great Plains
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Which of the following is an example of chemical weathering?
A river carrying dirt into a lake.
Wind carrying sand from a beach.
Chemicals in water dissolving minerals in rock.
Friction between two rock surfaces grinding away minerals.
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Choose all the answers that apply.
Erosion:
can damage aquatic ecosystems
removes fertile topsoil
can decrease revenue from agriculture
is caused mainly by wind and water
is the breakdown of rock and other material
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Choose all the answers that apply.
Erosion can be reduced by:
contour plowing
putting up fences
planting trees
removing topsoil
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Which of the following statements is true?
Since the Dust Bowl, erosion has not been a problem in the United States.
The most fertile part of soil is found a few feet below the surface.
Runoff happens when the ground cannot absorb anymore water.
Oxidation happens when carbonic acid gains electrons from oxygen.
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PLEASE HELP 911
Answer:
given below
Explanation:
1) correct answer is option c)
when the temperature changes it leads to oxidize the mineral which leads to create crack.
2) correct answer is option b)
physical weathering is the process of to crack and break in wet rock.
3) correct answer is option a)
In amazon rainforest the chances of chemical weathering is very high.
4) correct answer is option d)
erosion is the process in which the rock and mineral break down into smaller pieces.
5) correct answer is option c)
planting tree can reduce erosion as tree binds the top layer of soil.
6) true answer is option c)
runoff occurs when no water is absorbed by the soil.