Which zone has proven to be the most difficult for marine biologists to explore?
question 11 options:

abyssal zone

aphotic zone

intertidal zone

photic zone

Loss of protected health information collected for research should be directly reported to:

Which feature would you expect to find in a population in which sexual selection depends on male competition?

16 select the correct answer from each drop-down menu. sharks, whales, and dolphins share similar features such as body shape and the position of fins. hoy while whales and dolphins have lungs. these differences indicate that the organisms share a comme whales also possess a vestigial pelvic bone. the presence of the pelvis bone may indicate that whales reset next