A system is a group of related parts with specific roles that work together to achieve an observed result. If a body system, such as the digestive system, fails to work properly, what would happen to the organism?

A. The other organ systems would compensate for the defective system.

B. The organism would immediately evolve so the defective system is no longer necessary.

C. The defective system would regenerate into a new, working system.

D. The organism would not be able to function properly.

Dwarf galaxies are select one: a. relatively rare. b. not very bright c. mostly spiral shaped. d. none of these.

The images show the wings of a bat and a bee. from this evidence, what can you conclude about the evolutionary relationship between these organisms? a. the wing structures of the bat and the bee are different, indicating they didn’t inherit wings from a common ancestor. b. the wing structures of the bat and the bee are different, indicating they inherited wings from a common ancestor. c. the functions of bat wings and bee wings are the same, indicating they obtained wings from a common ancestor. d. the functions of bat wings and bee wings are different, indicating they didn’t obtain wings from a common ancestor.

The terrestrial planets are characterized by having a a.) silicate core b.) iron-rich silicate core c.) iron-rich metallic core d.) none of these