Which statement is true about fossils? a) there are more fossils in warm, wet tropical areas. b) no fossils resemble organisms that are presently alive. c) the oldest fossils are found in layers closest to the surface. d) the complexity of the organisms in fossil beds increases closer to the surface.

Which of the following represents a negatively charged ion? of t 7

15 ! come and answer! a(n) disease is caused by a pathogen and can spread among organisms. a infectious b noninfectious c toxic d contaminated

Parthenogenesis is a type of reproduction that does not require a mate. it’s rarely seen in birds and higher vertebrates. parthenogenesis involves the formation of a zygote. but this zygote is formed without fertilization. in parthenogenesis, in the absence of a male gamete, the ovum develops directly in the zygote.