Answer:
Please see below.
Explanation:
An anaerobe is an organism that lives where there is no oxygen in the environment. These are bacteria and are thought to have existed since the early times when the Earth had an atmosphere that was devoid of oxygen. They are normally found in places that normally lack oxygen such as in the mud at the bottom of still water bodies, in the root nodules of legumes (they have anaerobic nitrogen fixing bacteria) and in the intestine of vertebrates where there are very low levels of oxygen.
Answer:
1. Molecular evidence: similar proteins and genes found in closely related species, even if those genes are not used by an organism.
2. Fossil evidence: organisms changing form over time through the fossil record.
Direct observation. We can directly observe small-scale evolution in organisms
with short lifecycles (e.g., pesticide-resistant insects).
Explanation:
Answer:
This element is carbon.
Explanation:
You might be quick to think the answer is something like hydrogen and oxygen because both form to make water. But understand that the question is not asking about important elements in life, just which element makes up organic molecules. This element happens to be carbon.
It's important to understand that carbon is lucky in that it has 4 valence electrons and is able to bond with other important elements, like F, N, and especially H. The bond between C-H is essential in organic chemistry because it represents the structure of an organic molecule and helps with the IUPAC naming of organic molecules. It also suffices to say that there is a cycle for carbon in the carbon cycle, which transports carbon from one place in our world to the other.
So, it suffices to say that carbon is in fact essential for making up organic molecules.
1. C. prey-predator
2. A. competition between lizards and frogs for food
<span>A sports drink contains sugar, salt, and water. Which of these ingredients is the solvent?
Water is the solvent because it is able to dissolve the sugar and salt.</span>