Scientists argue that the first organisms on earth were ___ - - - that is, their metabolism did not require oxygen.

1) multi-cellular

2) anearobic

3) aerobic

How do muscle cells form different types of tissues?

Vitamin C is a water-soluble vitamin and can sometimes be found in the urine. What does this suggest about how the body deals with vitamin C? A. Vitamin C continues to circulate in the blood so it is available as cells need it. B.

Translation occurs in what organelle within a eukaryotic cell?

Identify 5 physical forces found on our planet

Macam mana unta bole hidup tanpa makan di pafang pasir?

Cyanobacteria have been engineered to produce isobutanol directly. What advantage does this have over other alternative biofuels? a. It is an inherently renewable fuel source. b. Multiple processing steps can be avoided. c.

Describe the appearance of dense connective tissue

What us one role that lipids play in the boy

Which meninx surrounding the central nervous system contains blood vessels that nourish the neural tissue?

Protists use all of the following methods to obtain energy except A. photosynthesis / B. ingesting food / C. converting atmospheric nitrogen / D. absorbing food.