Which method of heat exchange occurs during direct contact between the source and animal?
radiation
evaporation
convection
conduction

conduction

Explanation:

It is the situation in which heat propagates through a "conductor" that is a heat source, responsible for transferring heat through contact. That is, with direct contact with the heat source a body can modify its thermal energy if there is heat conduction by another body, or another part of the same body. This process occurs in situations where heat exchange occurs during direct contact between the source, in this case "conductor" and the animal.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands