Aristotle developed an early version of classifying living things by categorizing the organisms as plants or animals. Why is this method of classification not appropriate for today’s understanding of biodiversity? (5a-DOK2) A.
Plants and animals have many different characteristics.

B.
The model does not account for species that are neither plant nor animal.

C.
The model does not include the interaction of species with their environment.

D.
The world has millions of different plants and animals.

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a. m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed