Answer:
Reciprocal cross may be defined as the cross done by reversing the parent genotype. The reciprocal cross was performed by Mendel's during the pea plant experiment.
Mendel's reciprocal cross is important as it determines the contribution of the male or female in the particular trait. He reversed the male and female trait, cross them, whether the male or female is responsible for the transmission of the trait. He found that the progeny of the reciprocal cross are similar as the normal cross. Thus, he concluded that both the parents contribute equally in the transmission of trait.
Answer:
Cnidarians contain specialized cells known as cnidocytes (“stinging cells”) containing organelles called nematocysts (stingers). These cells are present around the mouth and tentacles, and serve to immobilize prey with toxins contained within the cells. Nematocysts contain coiled threads that may bear barbs.
Explanation:
<span>When shining a light into a pupil, the iris sphincter muscle is responsible for the size of the pupil. This can result in it getting smaller in the dark, and larger in the light.</span>
Answer:
Fill in the blanks to complete each statement about mountains.
Several mountains together form a mountain
- <u>range</u>
. A few of these combined form a mountain system. Several systems combined form a mountain
<u>2. belt</u>
, which can stretch thousands of miles in length.
Explanation:
<span>The number of births equals the number of deaths
*brainliest answer if possible
</span>