Question

The molecules that two different organisms excrete as waste products are shown in the table below. Based on this information, which of the following is the best comparison of these organisms?

Answer 1

Species A is a plant, and Species B is a heterotrophic bacterium.

Species A is an animal, and Species B is a plant.

Species B is a plant, and Species A is a bacterium.

Species B is an animal, and Species A is a heterotrophic bacterium.

Answer 2

We can use a process of elimination here.

The table shows us that Species A produces glucose, and oxygen, as a waste product.

You know about photosynthesis, right?
Glucose and oxygen are the products of photosynthesis.

So that means that Species A is most likely a plant.

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Here's another small hint that you may not need:

"Heterotrophs" are organisms that depend on organic materials (like glucose)
and oxygen, in order to live. They're not like plants, because they can't produce their own food.
They use the glucose and the oxygen,
and produce carbon dioxide and water, as waste products.

Answer 3

Thank you!