Answer:
cells part such as chloroplasts are self-replicating.
Half, because the ovum from the mother and the sperm from the father fuse together to form the zygote which will develop into the new human being, and the ovum and sperm, being gametes, each have half the number of chromosomes that you usually find in somatic cells (any other cell in the body that is not a gamete).
Explanation:
multicellular organisms thus have the competitive advantages of an increase in size without it's limitations
Rivers and streams carry water, and pick up runoff water after precipitation. Rivers and streams are a source of water to be evaporated into clouds.