Are alveoli of the lungs an organ or are they tissues?

What is the function of a median nerve?

Why can the onset of aids take several years?

What do you call someone who studies sea animals? I can't recall what it's called nor can I find it. I looking for someone who studies Sharks

A geologist notices that a river is eroding its valley at a constant rate. Knowing the height of the valley walls, how coul geologist figure out when the river started carving the valley? A.

What is a reason for transcribing many mRNA copies from a single DNA gene?

If you wanted a horse to foal in January when would you breed

How are organisms in the domain eukarya different from those in teh domain archaea?

Secondary succession occurs in ecosystems without soil.

What are some viable ways of lessening the effect that increased carbon has on the following? Impact on human life Destruction of the cycle Global warming Alteration/destruction of species, biomass

2. Describe the three layers which ocean water is divided based on temperature.