Does a plant cell have a cell wall?

Fitness is ____.

What is the central dogma of biology/ life/ etc.?

A theory is a short term follow on to a hypothesis.

The function of the mitochondria is to ____.

The end number of ATP produced in the ETS is always exactly the same regardless of cell conditions, environmental conditions, etc.

The atomic number is?

The food chain progresses from energy to consumer to producer to consumer.

The purpose of DNA replication is to ____.

Directional patterns in natural selection ____.