Answer:
pulmonary artery, so option 4
Explanation:
Answer:
Option A is correct.
Explanation:
Phenotype ratio is the number of one phenotype compared to another phenotype.( physical characteristics)
C/cch * C/c
It should be A. It is universal among all life on Earth.
Answer:
A. Many dinosaurs were present in upper layers of rock strata, but not in lower layers.
Explanation:
In my opinion, this is the best possible answer.
A decomposition reaction occurs when ionic or covalent bonds are broken and elements and or ions or simpler molecules are formed.