What are the three most abundant gases in earth's atmosphere?

A. carbon dioxide, nitrogen, oxygen

B. nitrogen, oxygen, argon

C. silicon, oxygen, nitrogen

D. carbon dioxide, oxygen, helium

How do plants living in deep shade manage to make their food

The snapping turtle shown above, lives in a small farm pond, where its major prey is largemouth bass. In turn, the bass primarily eat emerald minnows. This snapping turtle weighs 40 pounds.

Biology and culture are the only determinants of gender typing. true or false

If the parents of a child are blood types AB and O, what are the possible blood types of the child? a) A or B b) A only c) O d) AB

DNA, RNA, and starch: What do these three important biomolecules have in common?

Consider the cell cycle; which stage takes pretty much the same amount of time regardless of cell type? Explain

A 45 year-old male who is in good health presents with complaints of pain in his left heel. He states that the first few steps out of bed in the morning are extremely painful. He has no history of trauma. What is the likely etiology of his pain? A.

How can your weight vary but your mass can remain the same?

Which of these is NOT an aquatic reptile group? plesiosaurs pterosaurs ichthyosaurs nothosaurs

How are chemosynthetic bacteria different from photosynthesis bacteria