Answer:
Spongy bone
Explanation:
The bone density is reduced and allows the end of bones to compress when stress is applied
Because migration and and other seasonal movements can affect the possibility of finding a mate, stresses, that could affect offspring survival(can vary with season), and also availability of thing that are available for the offspring.
Answer:
Phospholipids heads are negative and attracted to water.
Just so you know the “head” of a lipid present in your cell membrane is considered to be are referred to as hydrophilic meaning attracted to water were as the "tail" of the lipid is considered to be hydrophobic as you might of surmised meaning hating water I suppose.