Exam 11: The Living Ocean

Photosynthesis is used by all autotrophs to make food.

Mixotrophic plankton can photosynthesize.

Autotrophs do not respire.

Bioluminescence is commonly used to avoid being eaten.

An organism's substrate provides ________.

Psycrophiles are organisms that ________.

Countershaded fish usually have a dark back and a light undersurface.

Which zone changes the least with latitude?

Phylogenetic taxonomy classifies organisms based on evolutionary relationships between ancestor organisms and their descendants.

Oxygen concentrations are lowest in the deepest parts of the ocean.

The abyssal zone is an area of perpetual darkness showing no seasonal changes.

If a marine animal has body fluids that have a lower salt content than the surrounding seawater, water will pass through the animal's body tissues from the ________ to the ________ because of ________.

Plankton are the "drifters of the sea" and include all of the following except ________.

Natural selection refers to the survival of individuals that leads to a more successful population.

The biological pump ________.

The only zone of the ocean with sufficient light for photosynthesis is the ________.

Prokaryotes include bacteria, protists, and Archaea.

Typically, the individual cells that make up a multicellular organism are more or less the same size.

The two most important inorganic nutrients for photosynthesis are ________.

Starting from the surface, the ocean is divided into the following regions based on light penetration.