The double membrane. It's theorized that chloroplasts used to be their own single-celled organism in the environment (and therefore with its own membrane). Then, the theory states, a larger cell took in the chloroplast by endocytosis, which involves surrounding the chloroplast in the large cell's own membrane. The chloroplast would then have two membranes surrounding it. This is similar to the thinking for mitochondria becoming an organelle as well. Hope this helps! :)
B) False, Visceral Fat is more dangerous than Subcutaneous Fat that lies just under the skin around the belly, thighs and rear.
Angiosperms have make sex organs called stamens
Answer:
B. Boreal forest
Explanation:
It is home to moose, lynx and foxes.
Answer:
The right option is; A)
Explanation:
The limb bones are similar across these species because they share a common ancestor BEST explains this common skeletal structure.
The three similar bone structures; humerus, ulna and radius that is found in the arm or forelimb of humans, horses, goats, and mice are known as homologous structures. These structures are found in different organisms and because of their similarity suggest that the organisms have evolved from a common ancestor. The structures are usually similar in form but they may not necessarily have the same function in the organisms.
