What type of heat transfer takes place when a furnace heats up an entire room?

With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.

This rapid change in species that rarely leaves behind fossil evidence is referred to as