Standards for The Horse's Diet

Next Generation Science Standards
3-LS3-2
Use evidence to support the explanation that traits can be influenced by the environment.
3-LS4-2
Use evidence to construct an explanation for how the variations in characteristics among individuals of the same species may provide advantages in surviving, finding mates, and reproducing.
3-LS4-3
Construct an argument with evidence that in a particular habitat some organisms can survive well, some survive less well, and some cannot survive at all.