The primary function of the respiratory system is to supply blood with oxygen
Answer: Option A.
Sympatric speciation
Explanation:
Sympatric speciation is a reproductive isolation or evolution of groups of species from the main population in the same geographical location.
The fruit flies changes their host plant to another due to specific characteristics posses by the choice host plant. It is a sympatric speciation because they occur in the same geographical location.
Answer:
Mitochondria
Explanation:
Protein synthesis can also occur in the mitochondria of the cell since mitochondria contains its own ribosomes and DNA (mDNA)
Answer:
an ancient relative of a living organism would be more useful for dating the rock because fossils in a rock layer represent what lived during the period the rock was deposited.
B is the incorrect statement, and therefore the correct answer.