AnswersFL-2000310-Biology 1 Sem 1 - FlexLab: Diffusion Across a Semi-permeable Membrane

Succession and Extinction Answers

0 verified answers
1
Free Preview

Why are lichens a good pioneer species after a volcanic eruption?

A
They are able to grow on moist soil.
B
They are able to grow on bare rock.
C
They are able to attract animals.
D
They are able to grow without water.
2
Free Preview

What is most likely to result immediately after a rainforest in Brazil is clear-cut?

A
secondary succession
B
primary succession
C
a climax community
D
increased biodiversity
3

Which factors involving the activities of people are a threat to biodiversity?

A
pollution and succession
B
habitat loss and predation
C
poaching and habitat loss
D
succession and poaching
4

How does a whale fall community affect ocean sediment?

A
The decomposition of the whale enriches the sediment.
B
The remains of the whale pollute the sediment.
C
The sediment is transformed into food for mussels and crabs.
D
The bacteria that are attracted break down the sediment nearby.
5

What is the role of a pioneer species in primary succession?

A
to destroy parasites
B
to provide shade
C
to provide fruit
D
to produce the soil
6

Which of the following could result in the extinction of a species?

A
harsh restrictions on poachers
B
increase in the habitat size of a species
C
adding a new species to the habitat
D
decrease tourism in protected areas
7

Which factor can cause secondary succession?

A
clear cutting
B
glacial melting
C
competition
D
predation
8

Which is one event that may lead to Primary succession?

A
clear-cutting
B
climate change
C
volcanic eruption
D
introduced species
10

In one species of bird, there are three varieties of feather color. What is this an example of?

A
ecosystem diversity
B
species diversity
C
genetic diversity
D
color diversity

Did you find these answers helpful?