Insects may be preserved in the hardened sap of trees called

How are the testes and ovaries similar? a. both produce sex cells. b. both connect internal reproductive organs to the exterior. c. both transport sex cells from their site of production. d. both store mature sex cells.

The wind speed in the region between cities a and b was probably the greatest at noon on which day?

Which of your fossils are most likely heterotrophs? which of them are autotrophs? how do you know?