Exam 13: Life in the Ocean

What is entropy?

All life on Earth is fundamentally the same.

How does carbon enter the atmosphere? What effect does it have on Earth? How does it cycle back for use in biological components?

Why is iron not abundant in the ocean?

Which community has the highest level of net primary production?

What physical factor can denature or alter a proteins structure in a cell?

Chemosynthesis is the main method of binding energy into carbohydrates on the planet.

How are the levels of carbon dioxide linked to the photic and aphotic zones? How does this relate to the temperature of the water?

What layer is permanently devoid of light?

What traps light energy in primary producers?

Some ____ are considered to be extremophiles.

What is a heterotroph?

What kind of metabolic rate do humans have?

What element is used to link nucleic acids in all organisms?

What are Darwin's postulates of natural selection?

What organism usually fixes nitrogen into usable chemical forms?

What kind of movement of particles is able to move against normal concentration gradients?

What is rarely a limiting factor for marine organisms?

What is an advantage of using scientific names?

A small cell having a high surface-to-volume ratio is more efficient than a large cell with a high volume-to-surface ratio.