Answer:
Explanation:
Fossils provide a wide array of useful information to archaeologists. Aside from revealing the body structures of ancient organisms they also indicate the era in which the organism existed using the fossils carbon data. Also fossils can also help us understand how an organism survived and it's relationship to other plants and animals from the same time period. All of this information provides scientists with a clearer understanding of how are planet was in the past.
Answer:
Every amino acid in the chain changes, making the protein not functional
Explanation:
The gene, or sequence of DNA, ultimately determines the unique sequence of amino acids in each peptide chain. A change in nucleotide sequence of the gene's coding region may lead to a different amino acid being added to the growing polypeptide chain, causing a change in protein structure and therefore function.
Answer:
Germinal disk (blastoderm) -- a small, circular, white spot (2-3 mm across) on the surface of the yolk; it is where the sperm enters the egg. The nucleus of the egg is in the blastodisc. The embryo develops from this disk, and gradually sends blood vessels into the yolk to use for nutrition as the embryo develops.
Explanation: