Exam 13: Biological Productivity and Energy Transfer

Eutrophication is a type of pollution caused by increased:

The relative productivity in the world's oceans from most productive to least productive is:

Purse seines are nets that:

An area of the open ocean where the rate of primary productivity is very low is referred to as a(n):

Diatoms,important producers in the epipelagic open ocean,are members of the Division:

The depth at which the cellular respiration rate equals the photosynthetic rate is referred to as the:

Overproduction of organic matter resulting in anoxic conditions is attributed to:

In temperate oceans during the winter months:

Nutrient flow in an ecosystem is:

In temperate oceans during the summer months:

An important marine autotroph that has SiO₂ incorporated in the cell walls are:

Diatoms are classified as members of the Division Chlorophyta.

The maximum sustainable yield (MSY)is best defined as:

The area of the ocean that produces the largest standing stock of commercial fish is in the:

Net primary production can be estimated as the amount of photosynthesis plus the amount of respiration.

Energy flow in an ecosystem is:

The by-products of photosynthesis are carbon dioxide (CO₂)and water (H₂O).

In primary production:

Marine algae that grow close to the limits of light penetration have accessory photosynthetic pigments that absorb high energy,short-wavelength light in the blue region of the electromagnetic spectrum.