Answer:
B) geology; theory of continental drift
Explanation:
If you cut a flatworm in half, both halves can grow into a new individual by fission.
The raw materials of photosynthesis are, sunlight, water and C02.
Biotic factors of an ecosystem are all the living organisms that affect other organisms in an ecosystem and include animals, plants, microorganisms, dead organisms, and even animal waste. Example of biotic factors include: Grass as producers (autotrophs).
The correct answer among the choices listed above is option D. The connection between the mother and the embryo that provides the embryo with oxygen and nutrients and waste disposal is the placenta. Hope this answers your question. God Bless.