Exam 9: Life in the Ocean

A physical or biological necessity whose presence in inappropriate amounts limits the normal action of an organism is known as a .

Hydrogen sulfide is a high-energy molecule that can be used to make carbohydrates through the process of chemosynthesis.

Primary productivity measures the grams of carbon bound into organic material per square meter of ocean surface area per year.

How do autotrophs differ from heterotrophs and how does it relate to the trophic pyramid?

Explain the concept of convergent evolution using an example.

The process by which accumulated adaptations result in superficially similar animals derived from different stock is called .

A spontaneous, inheritable change in an organism's genes is called a .

Mass extinctions can be caused by different events, such as .

Bacteria and Archaea are both domains of very small single-celled organisms that lack distinct compartments within their cells.

Light energy from the sun is trapped by in primary producers and change into chemical energy.

Dolphins, penguins, ichthyosaurs have undergone that gave them similar shapes through adaptations that permitted rapid swimming.

The zone of ocean water where photosynthetic organisms have enough light to thrive is called the .

Two species that both have the ability to fly must have evolved from a common ancestor.

Linnaeus was best known for his greatest contribution of .

When carbon dioxide dissolves in water, the water becomes slightly more .

The form of autotrophy in which organic molecules are produced without using sunlight is called .

An organism's metabolic rate increases as increases.

The main inorganic nutrients necessary for photosynthesis are .

Why is the pH of ocean water more acidic in deep water?

The average pH of seawater is about .