Behavior is defined as the actions and reactions of human beings and other animals. true or false

The answer would be:

True

Here's more about your question:

Behavior is the response of humans and other animals to  external and internal stimuli, environment and/or other animals (other humans). It can be expressed/observed in different ways such as facial expressions, talking, eating and the like. Even actions that have no meaning can also be considered as behavior.

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.