Question

I'm not sure if its B or C @jadeishere

Answer 1

When Linnaeus began classifying organisms in the 1700s, he categorized them as plant, animal, or mineral. These kingdoms were later revised to exclude minerals and expanded to include animals, plants, fungi, protists, and bacteria. Which of the following best explains a reason for this change?

As new organisms were discovered, new kingdoms were created to sort them based on ability to interbreed.

It was discovered that the organisms in each of the five kingdoms have a different method of obtaining nutrients and are therefore fundamentally different.

Technological advances led to the discovery of single-celled organisms and increased our understanding of relationships between organisms.

Genetic research led to the discovery that each of these five kingdoms has a unique evolutionary ancestor. @Jadeishere

Answer 2

It's B, because all of the different organisms stated have different ways of acquiring nurtients

Answer 3

Two hominid fossils are found in the same rock strata in caves about 10 kilometers apart in France. After radioactive dating, both are found to be about 150,000 years old. What else should be done before they are assigned to the same species? @jadeishere

Excavate deeper rock layers.

Look for evidence of tool use.

Find more fossils in both caves.

Compare anatomical structures.
I'm not sure if its C or D lol

Answer 4

This one is D, while excavating deeper might prove useful in finding out if one was older than the other, or if it came to be before the other, then I guess, but probably not, evidence of tool use won't help much and finding more fossils would only help to prove that they had the right dating, not whether or not they're from the same family.

Answer 5

Which of the following would most likely happen if the epithelial cells in the stomach failed to produce mucus?

Food leaving the stomach would only be partially digested.

Gastric juice would digest the stomach lining, resulting in ulcers.

Stomach pH would increase, resulting in acid reflux disease.

The cells would break down more slowly in order to protect the stomach. @Jadeishere