samantha is a sixth-grade girl who has great difficulty in school. she pays attention and works hard but appears to have trouble remembering facts and concepts that she has read. before we can determine whether samantha has a learning disability, it is most important to know her

IQ is the correct answer.

Explanation: In fact, the richest aspects of intelligence cannot be assigned a number. Even though, on logical and empirical grounds, IQ is not necessary to define whether or not a person has a learning disability, IQ scores can be used to diagnose a learning disability.

d is the correct answer.

b is incorrect because it makes food by itself

c is incorrect because us humans don't know how to produce their own food using the sun like plants.

a is incorrect because consumers can depend on carnivores for eating food for consumers to eat the dead organism. same thing with omnivores.

true because they can bargain