As food moves through the human digestive system, which path does it take?

As scientists search the universe for signs of like on other planets they are likely to focus on the presence of molecules containing which of the following elements? A) carbon B) calcium C) iron D) magnesium

Which type of cell has been found in extreme environments including high salt, low ph, very high or very low temperatures, and very low pressure?

what type of transport is used to move a molecule from a region of low concentration to a region of higher concentration

If you uncovered fossils of tropical fish and palm trees, what could you say about the environment at the time the fossils formed?

The offspring of reproduction are most likely to survive changes in the environment

Which of the following items would be an ecosystem within the ocean ecosystem? a. marshes b. coral reefs c. rivers d. ponds

The universal genetic language of dna is common to virtually all organisms on earth. True or False

Why use a negative control when running gel electrophoresis? if a band shows up in this lane, what does it tell you about your pcr products?

A balance in abiotic factors is vital to healthy ecosystems.

Explain the goals of a sustainable development.