Many scientists would argue that the reproductive system is the most important system in the body. which of these would best defend that thought? a) without the reproductive system, a species would not be able to survive b) the reproductive system is necessary to maintain a strong skeletal system c) the reproductive system must filter wastes so the body can remain healthy d) without the reproductive system, a body would be unable to transport oxygen to all of the cells in the body eliminate

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.