The answer is blood plasma. Blood
plasma is ultrafiltrated
by the choroidal capillaries to become cerebral spinal fluid, about
50%. The rest is secreted by the cells of
the choroid plexus and ventricular ependyma. They contain the same elements in the blood plasma necessary for the nourishment an proper functioning of cells
3. Also called the lock and key hypothesis
Answer:
Insertions
Explanation:
Because they are mutations that use extra base pairs and insert them into a new place for the DNA, when a section of DNA is lost, A insertion fills it in.
<span>Answer: 16 combinations
A fruit fly has four pairs of chromosomes in its cells. Assuming all pair is heterozygotes, each pair of the chromosome can be divided into two possible combinations. So, if there are 4 pairs then the possible combination would be 2 * 2 * 2 * 2= 16 possible combinations.</span>
He chose to study birds, plants, and animals. Mostly 2 types of Finches.
