Which animals are ectothermic? turtles and lizards birds and mammals frogs and mammals lizards and birds?

The correct answer is turtles and lizards.

Explanation:

The cold-blooded animals also are known as ectotherms. These are the organisms whose body temperature regulation relies upon the external sources like heated rock surface, or sunlight. The ectotherms comprise amphibians, fishes, invertebrates, and reptiles. These are the species that cannot monitor their own body temperature. Thus, from the given options, turtles and lizards is the correct option.

each of the 46 original chromosomes splits into two daughter chromosomes, so there are two sets of 46 daughter chromosomes that end up in each cell. human cells have 46 chromosomes. each chromosome consists of a pair of identical chromatids attached together by a structure called a centromere.