Unit 8 part 1 practice

What is the symbiotic relationship between the foxes and the rabbits?

• mutualism

• predator-prey

• commensalism

• competition

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NGSS.MS-LS2-4

The bee in this picture is flying over to the flower to get a drink of nectar. When the bee flies away it will take with it pollen from the flower. The bee will then transport the pollen to another flower. What type of symbiotic relationship is shared between the bee and the flower?

• Parasitism

• Mutualism

• Commensalism

• Competition

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NGSS.MS-LS2-2

Which of these is an example of parasitism?

• A lion defends its territory.

• A squirrel stores food in a tree hole.

• A leech feeds on a host's blood.

• A polar bear kills and eats a seal.

The picture above shows a remora, a species of fish that attaches itself harmlessly to sharks with a sucker-like organ on its head. The remora receives the benefit of a free ride and scraps of food from any meals the shark eats. While the remora does not hurt the shark, no one has ever proven that they help the shark either. This type of relationship is known as

• mutualism

• competition

• commensalism

• parasitism

The picture above shows a food chain in a specific order. Identify the organism that is the secondary consumer in this ecosystem.

• shrimp

• pike

• osprey

• smelt

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

The picture above shows a food chain for a lake in Norway. Freshwater shrimp, which graze on algae, are eaten by smelt. The smelt are eaten by perch. The perch are eaten by pike. Finally, the pike are eaten by ospreys. Suppose that a virus caused almost all of the perch to die. Which population would INCREASE as a result of the viral outbreak?

• shrimp

• pike

• osprey

• smelt

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

The food chain shown is from a lake in Norway. From the first consumer, shown on the bottom, to the top predator, the organisms in the food chain are a freshwater shrimp, smelt, perch, and osprey. Suppose that an ecologist discovers that a pesticide is being sprayed on potato fields near the lake. Which organism is likely to suffer the worst effects from the pesticide, due to biomagnification?

• Pike

• Shrimp

• Osprey

• all are affected equally

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Refer to the marine food web diagram. Which population will increase if the redfish population decreases?

• The osprey population will increase

• The amphipod population will increase

• The clam worm population will increase

• The phytoplankton population will increase

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Based on the energy pyramid diagram, what is the energy available at the level of Tertiary Consumers? Assume producers have 100,000 kcal of energy.

• 100 kcal

• 1,000 kcal

• 70,000 kcal

• 73,000 kcal

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Based on the diagram, which statement is correct? Transfer of matter between the plant and rabbit.

• The plant releases water that is taken up by the rabbit.

• The rabbit releases glucose that is taken up by the plant.

• The plant releases oxygen that is taken up by the rabbit.

• The rabbit releases oxygen that is taken up by the plant.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3