Density differences in ocean water are responsible for deep ocean circulation. a. true b. false

What period did the dinosaurs go extinct? a. Quaternary c. Jurassic b. Cretaceous d. Permian

Which factors contribute to antibiotic resistance? A) treating viral infections with antibiotics B) patients that do not finish their medication C) patients not washing hands D) mutations in bacterial DNA

What is the principal male sex hormone

The cytoplasm in a cell carries out a function similair to which human system

Which of the following does NOT create variation within a population? a. mitosis b. genetic shuffling c. sexual reproduction (meiosis) d. mutations

Which process begins the transfer of materials and energy throughout a forest ecosystem

What is a doctor called who specializes in the treatment of heart conditions?

Which of the following is true about the efficiency of energy transfer in an ecosystem?

Density differences in ocean water are responsible for deep ocean circulation. a. true b. false

What is it called when one rock fragment slips past another?