What safeguards does a normal health cell have to prevent cancerous tumors from developing? A
Proto-oncogenes
B
Tumor Suppressors
С
DNA Repair
D
All answer choices are correct

me and my friend did 2

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.

look at this it will give you up to 17 answers