Marine Biology Apologia

A biologist has a sample of what looks to be a marine plant. He thinks, however, that it might be an unknown species of brown algae. To test this, he takes part of the 'plant', dries it, crushes it into a powder, and mixes it with water. The solution thickens. Is this evidence that the organism is a plant or an algae?

• plant

• neither

• both

• algae

Tags

NGSS.MS-LS4-2

Which of the following is the most complex genera of green algae?

• Chlorophyll

• Spirogyra

• Desmid

• Chlorella

Tags

NGSS.MS-LS4-2

If an organism is in phylum Chlorophyta, does it have chloroplasts?

• It does, but only for part of its life cycle

• Sometimes when it is at a stable state

• Yes, Chlorophyll is held in chloroplasts

• No, it does not have to have chloroplasts

Tags

NGSS.MS-LS1-6

If you observed a sessile colony of algae, would it tend to move about or stay in one place?

• Stay in one place

• They stay in one place for a time, but then they will move when it is time to reproduce

• Move about

• Spins around

Tags

NGSS.MS-LS2-1

Many biologists consider diatoms the most important form of algae in the world. Why?

• They give us sand to make glass

• They are used in industry for filters

• They produce most or our oxygen supply

• They use up a lot of oxygen in the water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In what type of symbiosis do both organisms benefit?

• parasitism

• mutualism

• commensalism

You are studying an amoeba under a microscope and it suddenly explodes. Which organelle is not functioning properly?

• plasma membrane

• mitochondria

• contractile vacuole

Tags

NGSS.MS-LS1-2

A euglena is in dim light. There is a bright spot of light nearby but the euglena does not move toward it. What organelle is not functioning?

• cillia

• flagella

• eyespot

Tags

NGSS.MS-LS1-2

A paramecium cannot conjugate. Which organelle is not functioning properly?

• the oral groove

• the food vacuole

• the contractile vacuole

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

True or false, control mosquito population and you can control malaria?

• True, mosquitos spread malaria

• False, dirty water spreads malaria

Tags

NGSS.MS-LS2-4