1. In any food chain or web, the original

source of energy is -

A. the sun.

B. Earth.

C. the producers.

How many molecules of water are formed when four amino acids join

The function of honeybee drones is to bring nectar back to the hive. a. True b. False

What is the female reproduction organ called?

Curly wing is recessive to straight wing in drosophila. in a cross between true-breeding curly - and straight-winged parental flies, there are 480 flies in the f2 generation. how many f2 progeny should have curly wings?

Which is a factor in how a species can change over time? A. mutations B. cytokinesis C. extinction D. formation of spindles

What is unique about dogs?

3. The best thing you can do to keep a positive relationship with your supervisor is to

What contains both communities and ecosystems?

Which of the following represents a way that animals in a zoo are influenced by their environment? a. increased natural instincts b. decreased aggression c. unnatural behavior d. increased appetite

when the process of mitosis is correctly completed, the daughter cells should contain exact copies of all of on organisms genes. which biomolecule contains all of the organisms genes