What special structures are needed for green plants?

The Arctic cod is a small forage fish that is a very important part of the food web. It eats mostly zooplankton and lives water

slavikrds [6]

Answer:

The answer should be C.

8 0

4 years ago

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When blood clots, an enzyme is activated to change a protein from one form into another.

exis [7]

Answer:

Hey mate!!

<h2>Process of blood-clotting</h2>

The mechanism to prevent excessive loss of blood from the body is called blood clotting.

<h3>Steps in blood clotting:</h3>

At the site of cut, damaged cells and platelets release thromboplastin.
This thromboplastin with the help of calcium ions,converts prothrombin into thrombin.
In the presence of calcium ions,thrombin reacts with soluble fibrinogen and converts it into insoluble fibrin.
Fibrin is a solid substance which forms threads and a meshwork at the site of cut.
Blood cells trapped in the network of fibrin.The blood shrinks and squeezes out the rest of plasma in the form of clear liquid.
The solid mass which is left behind is called clot.

Hope this helps ......

Good luck on your assignment....

8 0

3 years ago

Tetanus is a(n):

MArishka [77]

Answer:

a. muscle contraction of sustained force resulting from repeated action potentials.

Explanation:

Tetanus is a symptom consisting of the constant contraction of one or more muscles. This can be caused by diseases or other physiological conditions that cause an increase in the frequency of action potentials that promote muscle contractions. Thus, the contractions overlap each other and consequently the muscle remains in a condition of constant contraction.

5 0

3 years ago

Which of the following is an inference?

RSB [31]

Answer:

Well you didn’t state any possible answers but

an example of is inference is, if you see someone eating a new food and he or she makes a face, then you infer he does not like it.

Explanation:

7 0

3 years ago

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Temperature-sensitive mutations are useful in understanding essential life processes. A temperature-sensitive mutant will be nor

mixer [17]

Answer:

decreased NADPH production.

decreased sugar production.

Explanation:

The water-splitting complex is associated with PSII and serves as a donor of electrons to the reaction center of PSII. PSII loses its electrons upon trapping of sunlight. These electrons are passed finally to NADP reductase via electron transport chain and PSI. NADP reductase reduces NADP into NADPH. The NADPH formed during the light-dependent phase serves as reducing power in reactions of the Calvin cycle.

A mutation in the water-splitting complex would result in no electron supply to PSII and thereby, reduced production of NADPH. The reduced NADPH production would limit the supply of reducing power for the Calvin cycle and the sugar production would be decreased.

4 0

3 years ago