Organisms that are closely related have a recent common ancestor. of the following, which choice lists organisms that are most closely related to each other?
a. mammals and turtlesb. bony fish and birdsc. lungfish and amphibiansd. lizards and crocodilese. lampreys and sharks

Mammals and turtles

Explanation:

Mammals and turtles are more closely related to each other as compared to the other organisms.

The have the most recent common ancestors and they share common characters according to the cladogram.

Cladogram is a representation which is used to find out the closely related species. By looking into the cladogram the most recent common ancestors to mammals are reptiles.

Hence, Option A is the correct answer .

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.