The answer is B I believe!
Answer:
chromosomes r the threadlike structure found in the nucleus of living cells, carrying genetic information in the form of genes.
Explanation:
A.chloroplast has chlorophyll trapping sunlight used to build.....
Answer:
The region where the embryoblast contacts the trophoblast is called the embryonic pole. ... Just before implantation, the cells in the embryoblast start to differentiate into two layers - the epiblast (primary ectoderm), and an internal layer of cuboidal cells called the hypoblast (or primary endoderm).
I believe it’s a, as the waves increase the infrequently decreases