It is called THERAPEUTIC INDEX. Therapeutic index is the comparison of the amount of a particular drug that causes the desired therapeutic effects and the amount that causes toxicity. The index can be low or high. A drug with a low therapeutic index will require only a small increase in dose to produce toxic effects in users.
I presume your question is, how many chromosomes would be found in the resulting daughter cells of meiosis?
If parent cell has 16 chromosomes, the first division in Meiosis of the cell will result in 8 chromosomes, and the second division (I.e. the separation of the sister chromatids of the 8 chromosomes) results in 8 daughter chromosomes.
The number of chromosomes in each cell resulting from meiosis is 8.
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They are ectotherms.
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Answer:
True. You can get vitamin A as "preformed vitamin A" which is already active and/or you can get vitamin A as carotenoids which the body can turn into active vitamin A.
Explanation:
There are two different types of vitamin A that can be obtained from food:
1. Preformed vitamin A, which is already active, is found in animal products such as beef, fish, poultry and dairy products.
2. Provitamin A, which is the inactive form, is found in plant-based foods, such as fruits and vegetables. The most common type of provitamin A is β-carotene, which is a carotenoid that the body can turn into active vitamin A via an enzyme named β-carotene 15,15'-monooxygenase.
This is true because all living organism experience life.