Which of the following types of models is usually in the form of a drawing, graph, or equation?
a idea model
b. physical model
c. computer model
d. none of the above
select the best answer from the choices provided

a idea model is the correct answer

Explanation:

The type of model that is usually in the form of a drawing, graph, or equation would be an idea model.

scientific models are used to evaluate the physical processes and empirical objects.

Types of scientific models

Thus option(A) is the correct answer.

answer; i believe that the correct answer is(d) nondisjunction during meiosis;

amber has allowed scientists to study dna that has been preserved over millions of years.