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Sedaia [141]
2 years ago
13

In order for sharks to maintain a concentration balance with it’s environment, a

Biology
1 answer:
Ksivusya [100]2 years ago
4 0

Answer:

B. retain its urine in it’s blood stream

Explanation:

Sharks are cartilaginous fishes that lives in the ocean. Oceans are always salty, hence organisms need to maintain a salt-water balance between their internal and external environment because of osmosis. Sharks are able to maintain this by ensuring that the amount of solutes in their internal environment is as much as that in their external environment.

Sharks retain a chemical contained in urine called UREA in their bloodstream to counter the osmotic effect of the salt concentration in the waters they live. This helps them maintain a concentration balance with their environment.

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What type of candy is earths mantle most like?
professor190 [17]

Answer:

Ice cream , peanut butter or melted marshmallows with puffed rice- cereal

Explanation:

can all work for the mantle layer of your project. Push a hard candy representing both the inner core and outer core into a ball of ice cream, or spoon a layer of ice cream into a clear plastic cup over the top of the inner and outer core.

Hope it helps

5 0
2 years ago
Please help ASAP!!! Thank you!
kirill115 [55]

Answer:

b

Explanation:

5 0
3 years ago
A positive feedback loop causes a self amplifying cycle in which a physiological change leads to even greater change in the same
iVinArrow [24]

The given statement is TRUE.

A positive feedback loop causes a self amplifying cycle in which a physiological change leads to even greater change in the same direction.

A negative feedback loop is a process in which the body senses a change, and activates mechanisms to reverse that change.

What is a positive feedback loop?

In nature, a positive feedback loop happens when the outcome of a reaction increases that reaction. A positive feedback loop pushes a system further away from the equilibrium goal if we consider a system in homeostasis. It takes place when something needs to happen quickly and does this by enhancing the effects of a product or event.

<u>Example</u> : Ripening of fruit

In nature, there is a strange phenomenon when a tree or bush may suddenly and silently begin to ripen all of its fruit or veggies. This is the first instance of a beneficial biological feedback loop we've found. If we see an apple tree with many apples, they all appear to ripen over night, going from being unripe to ripe to overripe. The first apple to ripen will mark the start of this. It releases ethylene (C2H4) via its skin when it is ripe. The apples nearby ripen as a result of being exposed to this gas. As soon as they are ripe, they too begin to generate ethylene, which continues to ripen the rest of the tree in a manner akin to a wave.

To know more about positive feedback loop click on the link below:

brainly.com/question/19911791

#SPJ4

8 0
2 years ago
What role do enzymes play in chemical reactions?
Naily [24]

Answer:

Enzymes allow many chemical reactions to occur within the homeostasis constraints of a living system. Enzymes function as organic catalysts. A catalyst is a chemical involved in, but not changed by, a chemical reaction. Many enzymes function by lowering the activation energy of reactions.

Explanation:

I believe this is correct, if not let me know and I will fix it. I'm sorry in advance if it is incorrect.

7 0
3 years ago
Read 2 more answers
A specimen collection helps a scientist do an experiment by:
slavikrds [6]

Answer: B. providing access to objects that are hard to find

Explanation: A specimen can be simply refered to as a sample of blood, tissue, fluid or a piece of a matter which scientist take or obtain to have a better look (study) at it in a lab.

Specimen collection is the process involved in getting or obtaining these samples for better analysis in a lab. This process help scientist get, obtain or have access to samples or objects that are not easily accessible.

Therefore Specimen collection helps scientist carry out experiment by providing access to objects that are hard to find.

6 0
3 years ago
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