primary producers part 2

Which group of phytoplankton contain a cellulose cell wall and move with the aid of two flagella?

Dinoflagellates

Which group of phytoplankton most commonly produce bioluminescence?

Dinoflagellates

______________organisms drift in the water column or swim weakly in the ocean, going where the currents go, unable to move consistently against waves or current flow.

Planktonic

During the production of bioluminescent light, the enzyme luciferase oxidizes the compound ____________________.

luciferin

Harmful algal blooms produced by dinoflagellates are often referred to as ___________ tides.

Red

Which group of phytoplankton have evolved structures that function like sunglasses?

Coccolithophores

Which common consumer product is derived from sediments produced by the accumulation of diatom frustules?

Cat Litter

Nutrients that change in concentration with biological activity are described as ____________________.

Non-conservative

Which of the following is not a non-conservative nutrient?

Carbon

Which physical oceanographic structure can restrict movement of nutrients between the depths and surface?

Pycnocline

Which region would have the strongest pycnocline?

Caribbean Sea

During which season are phytoplankton in the North Atlantic ocean generally limited by nutrients?

Summer

The depth at which photosynthesis equals respiration is the ________________________.

Compensation depth

Phytoplankton tend to stay near the surface in order to be able to absorb ____________ light.

Red

The compensation depth usually corresponds to the depth where the light intensity is ______ of the surface intensity.

1%

What process contributes to enhanced plankton production in coastal waters?

Upwelling

Symbiotic algae living in coral tissues are called ___________________________.

Zooxanthellae

Seaweeds like kelp attach to the substrate with a structure called a __________________________.

Holdfast

Seaweeds commonly known as red algae belong to the division _______________________.

Rhodophyta

What true vascular plants grow completely underwater?

Seagrasses

A group of salt-tolerant trees found in tropical and subtropical regions are called _________________.

Mangroves

The seeds of mangroves are called ______________________.

Propagules

The seeds of mangroves are called ______________________.

Propagules