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vivado [14]
3 years ago
7

Which one of the following discoveries involving DNA happened first?

Biology
1 answer:
Allushta [10]3 years ago
4 0
The correct answer is B
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lisov135 [29]

No muscle contraction will be observed.

<h3>What is the effect of calcium concentration on muscle contraction?</h3>

The concentration of calcium ions in the muscle cells help in contraction and relaxation of muscles fibers.

Release of calcium ions initiate muscle contraction.

Therefore, there will be no contraction of muscle if calcium ions are not transported out from the sarcoplasm.

Learn more about muscle contraction and calcium ions at: brainly.com/question/14760686

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7 0
2 years ago
while conducting experiments on pea plants Mendel observed that the combination of traits and the Offspring did not match up wit
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In the mid-1800s, an Austrian monk named Gregor Mendel Opens in modal popup window began his own experiments with plants. Unlike his predecessors, he used rigorous scientific methods in his experiments.

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6 0
3 years ago
What are some advantages of using a toy ball as an animal cell model?
Effectus [21]

Answer:

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6 0
3 years ago
Why did most mosquitoes perish when DDT was sprayed the first time?
WINSTONCH [101]

Answer:

Due to no resistance.

Explanation:

Most mosquitoes perish when DDT chemical was sprayed the first time because these mosquitoes are vulnerable to the DDT chemical and there is no resistance present in their body against this chemical. DDT chemical is an insecticide which is used against insects or pests that causes damage to human, organisms and crops. DDT was first synthesized in 1874 by the Austrian chemist named Othmar Zeidler.

7 0
3 years ago
Will mark brainliest!!!!..need ASAP with explanation
stepladder [879]

Answer:

its either community or ecosystem

hope this helps!

Explanation:

Term Meaning

Community All the populations of all the different species that live together in a particular area

Ecosystem All the organisms that live in a place, along with their physical environment

7 0
3 years ago
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