A pathway by which a chemical element or molecule moves through both biotic and abiotic compartments of an ecosystem.

The caterpillar, which is the larval stage of a butterfly, is very different from its adult form. What phenomenon is responsible for this difference?

Are kelp crabs herbivores, carnivores, or omnivores?

All of the following industries can suffer greatly after a marine industrial accident except a. oil b. solar c. fishing d. tourism

A student views cells from several different prokaryotic and eukaryotic organisms under a high powered microscope. Which of the following statements describes how prokaryotic cells appear different from the eukaryotic cells? A.

1. Which organism is able to cause an infection? a. red blood cell b. virus c. bacteria d. white blood cell 2. How do single-celled decomposers get energy? a. they use a process called budding. b. they feed on living organisms c.

What event occurs prior to speciation

Is chocolate in chocolate milk a solute

3 different types of cells

Give an example of a niche

Comprehensive Biology What scientific breakthrough occurred around 50 years ago that of the biology puzzle together? Discovery of cells Evolutionary theory