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antiseptic1488 [7]
3 years ago
15

A muscle cramp is a sudden, painful contraction of a muscle, during which movement is difficult. What is happening at the cellul

ar level during a
muscle cramp?
A. Myosin and actin do not fully detach, so the muscle cannot relax
B. A lack of calcium causes the sarcomeres to lock together, preventing relaxation.
C. The motor neuron does not send a signal, so the muscle cannot relax.
D. The proteins in the myofibrils become denatured, preventing relaxation.
Biology
1 answer:
rewona [7]3 years ago
6 0

Answer:

The correct answer would be B

Explanation:

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Allen has been studying the genetic material of dogs, to get more insight
kati45 [8]

Answer:

Nucleic Acids

Explanation:

Nucleic acids are DNA and RNA and they are the molecules responsible for containing the genetic material of all living beings. Thus, DNA and RNA are the molecules responsible for establishing the variability and different characteristics between dog breeds, through the genetic information that each of them houses.

In this case, among the options given in the question above, we can confirm that if Allen has studied the genetic material of dogs to better understand why there are so many different breeds, he must have studied nucleic acids.

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3 years ago
What allows substances to pass through the nuclear envelope?
Deffense [45]
Its a large nuclear pore
so pores :)
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3 years ago
A single-celled organism can be classified as a prokarote based on the absence of the_______
ExtremeBDS [4]

D: a nucleus

the prokaryote cell has no nucleus and for that matter no other membrane bound organelle

6 0
3 years ago
A good scientifific blank can be repeated by someone else and the same results will be found
Mice21 [21]
ANSWER SOMEBODY DDFRF
6 0
1 year ago
What are the general features of the prymnesiophyceae
Anna71 [15]

Answer:

  1. Prymnesiophyceae is an algal class. It is placed in the haptophyte clade.
  2. It is unicellular.
  3. It has flagella (usually two) known as haptonema. These structures help in attachment and feeding.
  4. The plastids are surrounded by four-layered membranes.
  5. Its species are mostly found in the marine environment, thus classified as phytoplanktons.
  6. Many members of prymnesiophyceae have cell covering made up of calcium carbonate. These structures are known as coccoliths.

8 0
4 years ago
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