Answer:
A scale and a tape measure.
Explanation:
Use the tape measure to get the volume and the scale to get the mass.
Quite sure C is correct ;) remember that humans are also placental mammals.
Answer:
6==. During spermatogenesis, four sperm result from each primary spermatocyte, which divides into two haploid secondary spermatocytes; these cells will go through a second meiotic division to produce four spermatids
Answer:
a biological community of interacting organisms and their physical environment.
Explanation:
The answer would be lipids, they are a type of biomolecule and a nucle is an organelle