<span>The answer could be allopatric or sympatric speciation
depending on the cause of speciation. A population living in the same habitat
could be separated by a physical barrier hence restricting gene flow in the population.
On the other hand, sympatric speciation refers to the formation of different species
from a population that is in the same habitat and geographical area without any
physical separation. This could be due to differences in mating tendencies of individuals
in the population </span>
<h2>Answer:</h2>
The major importance of fingertips receptor is the sense of touch and recognition of things done by this sense.
<h3>Explanation:</h3>
- The first most thing we do with our hand is touch and recognizing things by this touch.
- This importance can be known by supposing that if we don't have these receptors, we will not able to recognize hard, soft even cold and hot.
- As if we encounter something hot which can harm our epidermal layer, our receptors immediately recognize it and pull the hand back by reflex action.
- So the most important receptors of our body are fingertips receptors.
Answer:
ruler, graduated cylinder
Explanation:
<span>These are:
1. <u>Number of microbes</u>: if there is a lot of microbes, then more time is needed to kill all of them.
2. <u>Characteristics of microbes</u>: some microbes have resistance genes, so they will not react to agents they are resistant to; some microbes have protective structures so treatment will be inhibited.
3. <u>Time of exposure</u>: different agents will need different time to kill microbes.
4. <u>Environment</u>: the effect of temperature, pH, organics both on microbes and agents.</span>
It seems that you have missed the given option for this question but anyway, here is the answer. The statement that would not be a valid reason for a cell's need to have these control molecules present is that <span>they make it impossible for the cell cycle to occur out of order. Hope this is the answer that you are looking for. </span>
