Chloroplast is the cell structure that enables the process of photosynthesis
Answer:
T
Explanation:
in order to drink milk people have to heat up milk to kill harmful bactrical substance
It's controversial because the best source of stem cells is a human embryo (an aborted fetus).
D. the 4 types of tissues in the body are: muscle, nerve, connective and epithelial
Answer:
Bacteria play a central role
Explanation:
Nitrogen-fixing bacteria, which convert atmospheric nitrogen to nitrates. Bacteria of decay, which convert decaying nitrogen waste to ammonia. Nitrifying bacteria, which convert ammonia to nitrates/nitrites.
