Unit 2 Quiz 2 - Communities

The remora is a fish which attaches itself to a shark, uses the shark for transportation and then eats any leftovers after the shark consumes its own prey. It does not harm nor help the shark, and the shark's power helps the remora move around. Which type of symbiotic relationship would this be considered?

• Ammensalism

• Predation

• Commensalism

• None of the above are correct.

The grizzly bear lives in a woodland habitat. It is most active in the early morning and late evening hours in warmer seasons. Grizzly bears have thick, brown fur that helps insulate their bodies during colder weather in the winter. This species is omnivorous, which means it consumes a variety of types of food, including fungi, insects, fish, and sometimes dead animals.

Which of the following factors are included in the Grizzly Bear’s niche?

• Thick, brown fur

• Woodland habitat

• Active in morning and late evening hours

• All of the above factors ARE included in a Grizzly bear’s niche.

These three different warbler species (type of bird) each feed on insects in spruce trees at the same time. Each species tends to forage (gather food) in a different area of the tree. What ecological process is demonstrated by the feeding patterns of these species?

• Parasitism

• Commensalism

• Resource Partitioning

• Intraspecific Competition

Which of the following is a parasite?

• A lion hunting a zebra

• A deer grazing on grass

• A tick sucking blood from a dog

• A snake swallowing a bird’s egg

A certain tropical tree has a fruit that is eaten by only one species of bats. As the bat digests the fruit, the seeds are made ready to sprout. When the bat excretes the wastes of the fruit, it drops seeds in new locations. Which of the following is the best term for the relationship between the bat and the tree?

• Predation

• Mutualism

• Competition

• Commensalism

Complete the analogy.

Predator is to Prey as Herbivore is to _________________.

• Carnivore

• Plant

• Parasite

• Predation

Mount Vesuvius is the only active volcano in mainland Europe. The last major eruption was in 1944, which destroyed virtually all life surrounding the volcano and left no soil behind. By year 2044, which event would most likely have taken place?

• Ammensalism

• Primary succession

• Secondary succession

• Bioaccumulation

Intense forest fires have devastated the Amazon rainforest in South America. Which of the following is likely to be true about the forest community hundreds of years after the fire has subsided?

• a. A pioneer community will eventually colonize the area where the trees were destroyed.

• b. The rate of recovery will be higher than it would if the area were destroyed by a volcano.

• c. There would not be any soil left after the forest fire.

• d. Both A and B are true.

True or False?

Biomagnification is the variety of different species of organisms in a given habitat or area.

• True

• False

Miss Donato’s students live in the town of Westfield, New Jersey. This statement is an example of her students’ ____________________.

• Niche

• Habitat

• Population

• All of the above are correct.