When trying to evaluate whether a dog is showing strong aggression as opposed to strong fear, one can readily see the difference in the
a. wetness or dryness of the nose.
b. eyes staring or looking away.
c. ears pulled forward or pinned back.
d. tail wagging or loosely relaxed behind the body.

The correct option is C.
When a dog is afraid, its ears are usually pinned back to the head. A dog showing aggression will pulled its ear up and forward.
Other signs that a dog shows when it is afraid include: lowering of the head, wrinkling of the nose, curled lips that show many teeth, tucked tail, panting, etc.
Signs show by an aggressive dog include: head held high, curled lips only show the front teeth, tail is upright and stiff, no panting, etc.

This is suuuper long!

Cells in plants get energy from the sun. The cells will use the energy from the sun to make food and conduct other processes.

Cells in animals get energy from the sun and from food. For example, if I ate a pizza slice, then I get energy from there.

Obligate anaerobes are microorganisms killed by normal atmospheric concentrations of oxygen (20.95% O2). Obligate anaerobes metabolise energy by anaerobic respiration or fermentation. In aerobic respiration, the pyruvate generated from glycolysis is converted to acetyl-CoA. This is then broken down via the TCA cycle and electron transport chain.

Each type of organism gets the energy it needs for its essential life processes mainly from the sun or from food.

Organisms get the nutrients they need to survive from food.

Nutrients move through an environment from organism to organism. Every organism excretes nutrients or eats nutrients.

Chemosynthesis is the synthesis of organic compounds by bacteria or other living organisms.

They get energy derived from reactions involving inorganic chemicals, typically in the sunlight.

I learned how different organisms get energy and what nutrients are. Also, I learned how nutrients go through the environment and what they are used for.

Explanation:

There's no real explanation for these answers.