exam 2

What is an ecosystem?

• All the populations in an area

• The nonliving things in a region

• The community and physical items in an area.

• A single population

Cells want a ____________ surface area to volume ratio

• small

• large

• equal

• none of these

The diffusion of water

• osmosis

• facilitated diffusion

• endocytosis

• lysis

A marine fish will

• loss water to the ocean

• drink water

• gain water

• drink water and loss water to the ocean

Chemosynthesis

• The production of sugar with light

• The production of sugar with chemicals

• The production of CO2 with light

• The production of CO2 without light

Organisms of the neckton

• drift

• swim

• live on the bottom

• live on the surface

This organism is the main cause of red tide.

• Diatoms

• Dinoflagellates

• Cyanobacteria

• Radiolarians

Organisms that can regulate their internal salt concentration are called

• Osmoconformers

• Osmoregulators

• Iso concentrators

• Urea concentrators

Calcareous deposits left by cyanobacteria over a long period of time.

• Frustule

• Stromatolites

• Coral

• Algal blooms

Diatoms have shells made of

• Calcium

• Cilia

• Silica

• Cellulose