Unit 4 Ecology

Which organism in the food web shown to the right would contain the highest concentration of chemical pollutants?

• Producers

• Secondary consumers

• Primary consumers

• Tertiary consumers

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NGSS.MS-LS2-1

What is the ecological niche of the Yellow-Rumped Warbler

• Flies in the sky

• Lives in the coniferous forest

• feeds in the lower part of the tree & at the bases of middle branches

A clownfish hides in a sea anemone for protection from its predators. When any of the predators of the sea anemone attempt to eat it, the clownfish darts out and scares the sea anemone's predators.

• Competition

• Parasitism

• Mutualism

• Commensalism

Tags

NGSS.MS-LS2-2

Remora fish attach themselves to a shark's body without harming the shark. They then travel with the shark and eat scraps from the shark's meals.

• Competition

• Parasitism

• Mutualism

• Commensalism

Fleas attach to dog's skin and feed off the dog's blood and nutrients. They often transmit diseases to the dogs.

• Parasitism

• Competition

• Mutualism

• Commensalism

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Would a climax community be reached more quickly after a forest fire or a volcanic eruption?

• After the volcano because only rock was left after the disturbance

• After the volcano because soil was left after the disturbance

• After a forest fire because only rock was left after the disturbance

• After a forest fire because soil was left after the disturbance

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NGSS.MS-LS2-3

NGSS.MS-LS2-4

What is an example of a pioneer species?

• Trees

• Lichen and moss

• Grass

• Bushes

How can a pioneer species travel?

• It is there through the soil

• Wind, birds, and floating in the water

What is the relationship between competition and the population size?

(Hint: think of your density dependent definition)

• Competition increases as population size increases

• Competition increases as population size decreases

• Competition decreases as population size increases

• Competition is not affected by population size

Which of the following would cause a decrease in population size?

• Birth rate is equal to death rate

• Birth rate is less than the death rate

• Birth rate is more than the death rate

• More Immigration that Emigration

Tags

NGSS.MS-LS2-4