A.) An allele is a version of a gene that can be expressed as a phenotype.
1. They have a slimy skin in which the oxygen gets dissolved. 2. The frog have lung instead of gills 3. They have enormous no. of nerves which help them to breathe through skin
The krebs cycle
I know this from a multiple choice question I helped my friend with lol
The ability of an animal to maintain a stable internal environment is called homeostasis
