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belka [17]
3 years ago
9

Why do fish have gills​

Biology
1 answer:
Marta_Voda [28]3 years ago
4 0

Answer: Like us, fish also need to take in oxygen and expel carbon dioxide in order to survive. But instead of lungs, they use gills. ... As the fish opens its mouth, water runs over the gills, and blood in the capillaries picks up oxygen that's dissolved in the water.

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Adult giraffes eat about 75 pounds of food in a day. On average, an area can provide 450 pounds of food per day for giraffes.
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Answer: the carrying capacity for adult giraffes in this area is: 6.

Explanation: [ 450 pounds divided by 75 = 6. ]

Fun Fact - Giraffes can drink up to 10 gallons of water a day and spend 16-20 hours a day feeding, their favorite food is Acacia Leaves.

4 0
4 years ago
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When compared to a cheek cell a muscle cell contains more
larisa86 [58]

Answer:

Chromosomes

Explanation:

This is why cheek swaps are done. They give more information about the body than muscle cells

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3 years ago
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A general mechanism by which postsynaptic potentials are terminated involves Group of answer choices increased synthesis of the
jolli1 [7]

Answer:

The correct answer is - reuptake of the neurotransmitter molecule into the axon through a membrane transporter.

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The action of a neurotransmitter at the postsynaptic cell or postsynaptic potentials is terminated by any of these mechanisms that are enzymatic degradation, diffusion or reuptake into the presynaptic cell by specific transporters.

After the desired biological response by postsynaptic potentials, in order to avoid over stimulation or termination of the postsynaptic potentials the neurotransmitter is taken back into the axon through a membrane transporter. This mechanism is to maintain a balance.

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3 years ago
Which of the following could represent a good pattern of integrated pest management?
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Tail docking, crutching, mulesing, insecticides, crop rotations, fly traps, grazing management, pesticides

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What is the concept of carrying capacity?
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The concept of carrying capacity is that an ecosystem can only support so much life while keeping in balance because there are a limited number of resources.

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