Instead of defining life, scientists have decided to

The energy used to obtain, transfer, and transport materials within an organism comes directly from (1) ATP (3) sunlight (2) DNA (4) starch

With regard to enzymes, key is to lock as A) substrate is to activation energy B) product is to substrate. C) enzyme is to active site. D) substrate is to active site.

How can invasive species result in changes in other populations?

What is the nature of the antibody-antigen interaction in rheumatoid arthritis?

Compare and contrast the functional structure of cell wall in prokaryotes and eukaryotes

Cyclins are a family of closely related proteins that a. regulate the cell cycle b. cause cancer c. produce lipids

Many functions in the body are controlled by special compounds. Which statements about these compounds do you think are true? Check all that apply. The body can make all of the compounds it needs. The body gets energy from some compounds.

The wide range of eye color indicates that eye color is

you are using magnets in the classroom. During science you keep hearing your classmates drop the magnents. What testable question can you develop based on this observation?

Darwin argued that the beak size and shape of Galapagos finch species was related to their a. body size. b. food source. c. time of reproduction. d. flight pattern.