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lana [24]
3 years ago
5

Why should we use CER method when approaching a question

Biology
1 answer:
marusya05 [52]3 years ago
6 0

Answer:look at explanation

Explanation: you should use the CER method because you can find evidence for a question that you know is right and make a claim for the prompt, then provide a reasoning, therefore you get a full understanding of the question and so does the teacher.

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You experimentally apply a toxin to a muscle and find that it does not contract when you electrically stimulate the motor neuron
Furkat [3]

The question provided is not complete as it lacks the group of choices, however the group of choices are given as follows:

A. A contraction fails to occur because an action potential is not generated in the muscle cell.

B. A contraction fails to occur because this toxin directly prevents ion release from intracellular stores.

C. A contraction fails to occur because neurotransmitter release by the motor neuron is blocked at the neuromuscular junction.

D. A contraction fails to occur because this toxin prevents cross bridge formation and thereby directly prevents contraction.

E. C and D are both true

Answer:

The correct answer is option A : A contraction fails to occur because an action potential is not generated in the muscle cell.

Explanation:

A muscle contraction takes place when action potential bring to muscles by nerves, which is traveled with the help of motor neuron and imitated the muscle contraction.

Acetylcholine or Ach is a chemical messenger to bring the nerve impulses between a nerve and a muscle. If the receptor is block with applying toxin muscle will not contract as ACh will not be able to propagate the nerve impulse to the muscle so there will be no action potential.

The correct answer is option A : A contraction fails to occur because an action potential is not generated in the muscle cell.

5 0
3 years ago
Which structure in the lymph vessels ensure that lymph flows in one direction
photoshop1234 [79]
There are valves in the vessels that prevents backflow, just like in the viens. ... the lymph vessels to ensure that the flow of lymph 
3 0
3 years ago
What phase of mitosis are the chromosomes taken from? Why?
arlik [135]

Answer:Metaphase

Explanation:

8 0
3 years ago
Which of the following illustrates how fossil fuels can be conserved?
mina [271]
The answer would be C
8 0
3 years ago
Read 2 more answers
What process contains the enzymes that break the chemical bonds in your food in order to create usable energy?
Finger [1]

Answer:

Cellular respiration

Explanation:

This is because cellular respiration is an aerobic process where the chemical bonds in food are broken down to release energy. This process produce energy which are useful for the body cells. Cellular respiration help to break down glucose. Glucose and oxygen are converted to carbondioxide and water and energy is released which form ATP.

4 0
3 years ago
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