Answer:
16
Explanation:
A diploid organism that produces gametes will undergo meiosis to do so. Meiosis reduces the chromosomal number in the gametes by half. Hence, each gamete will have 4 chromosomes (haploid,n). Crossing-over will likely occur during the meiotic process leading to recombination in the arrangement of chromosomes in the gametes.
If this occurs, a mathematical expression of 2^n is used to determine the number of possible combinations, where n is the number of chromosomes in the gamete.
Hence, 2^4 = 16 possible combinations of chromosomes in the gamete.
The structure that connects the placenta to the embryo would be the <u>umbilical cord.</u>
Answer:
The survival of a species depends more on the population because a population contains many type of organisms of the same species. Some of them are better adapted to survive the conditions provided by the Earth and hence, they live and produce offsprings with the favourable traits. The members of a population which are not better adapted mostly do not survive.
Hence, the survival of a species depends on the population where it is living.
Antigens are usually the proteins
Echinoderms utilize their tube feet by exploiting their water vascular, so their tube feet are essentially controlled by a water weight framework. Tube feet are adjusted to alternate uses in the gatherings of echinoderms by having the capacity to utilize their tube feet to join to objects and in addition for insurance and the picking up their supplements.
