Exam 12: Life in the Ocean

Asteroids hitting Earth may result in mass extinctions.

Which of the following is FALSE about dissolved gases in the ocean?

All other factors being equal, a greater quantity of dissolved gas can be held in solution in ____ seawater.

What is a limiting factor and how do they affect the distribution of primary producers?

The organisms that cannot produce their own food are called:

What is natural selection and how can it explain the diversity of life on Earth?

A form of autotrophy other than photosynthesis is:

Though it is difficult to generalize for the ocean as a whole, the bottom of the euphotic zone is about ____ meters (feet) in mid-latitudes.

Many marine invertebrates are ___________ meaning that they have specialized structures they use to extract plankton out of the surrounding water.

The movement of water across a cell membrane from an area of high concentration to low concentration is called:

The zone of lighted ocean where marine autotrophs are able to thrive is called:

The zone where most biological productivity of the ocean occurs is called:

Describe how energy is distributed through ecosystems and define the different trophic levels into which marine organism can be classified.

In the ocean as a whole, the limiting factor for primary productivity is:

Each of the following is a domain EXCEPT:.

The area in the ocean without light is called the:

Nitrogen and phosphorous can be depleted rapidly in the deep sea by photosynthetic organisms.

A tuna is an example of a top consumer.

Which of the following functions to maintain a balanced pH in the ocean?

The mechanism of evolution discovered by Darwin and Wallace is: