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hichkok12 [17]
3 years ago
13

What pattern of population growth corresponds to the principle of a carrying capacity? what pattern of population growth corresp

onds to the principle of a carrying capacity? logistic a straight line j-shaped bell-shaped?
Biology
1 answer:
inna [77]3 years ago
6 0

The answer is logistic growth. It is modeled by an S-shaped curve.  Carrying capacity (K) is the maximum individuals of a population that a habitat can sustain indefinitely given the limited resources in the environment.  Before this number is achieved, the population grows exponentially and slows as it gets close. When the K number is reached, the stationary phase enters.






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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.

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