A. Skeletal and muscular
the other three don’t have to do with this type of internal movement though as the abdominal region and internal organs don’t have to do with this, A is the only possible answer
The stimuli plants respond to will be found in the environment. Example....plants grow towars the sun.
Wind energy
Hydro power energy
Geothermal energy
Solar energy
Anthropoid
Pretty sure that is right B/C they have a exoskeleton, they are land animals primarily (Oxygen Tubes), they have joints and have two body segments.
The answer is; B
Mutation is one source of variation (in addition to sex and gene flow). Mutations are rare and occur in a small proportion of individuals. However, due to the advantage that the genetic mutation confers to these individuals, their chances of passing the genes to the next generation is higher than that of the general population.
This way, the allelic frequencies of these advantageous mutated genes increase with each generation and eventually become the majority population over time.
