Succession & Biodiversity

Question 1

Which of the following is an example of a disturbance that leads to primary succession?

Accepted Answer

cooled lava flows

Question 2

The variation of DNA and genes within a population or species is called __________ diversity.

Accepted Answer

genetic

Question 3

Which of the following is NOT an example of a pioneer species?

Accepted Answer

trees

Question 4

The variation in the species present in a certain location and the ways they interact with each other is called _______.

Accepted Answer

ecological diversity

Question 5

Which of the following is NOT an example of a keystone species?

Accepted Answer

badgers

Question 6

_____________ succession occurs after a disturbance which leaves soil behind and occurs at a faster rate.

Accepted Answer

secondary

Question 7

____________ succession is the process by which the structure of a biological community changes over time.

Accepted Answer

ecological

Question 8

____________ succession occurs after a disturbance where no soil is left behind. This process is very slow.

Accepted Answer

primary

Question 9

A(n) ___________ species has a large impact on their habitat, due to population number or the size of the organisms.

Accepted Answer

keystone

Question 10

Which of the following is an example of an indicator species?

Accepted Answer

pika

Question 11

___________ is the sum of the various species of animals, plants, fungi, and microbial organisms that inhabit the Earth.

Accepted Answer

biodiversity

Question 12

Which of the following is NOT an example of an invasive species?

Accepted Answer

smallmouth bass

Question 13

Invasive species flourish because the new ecosystem does not have the same ________ factors that slow population growth.

Accepted Answer

limiting

Question 14

The variety of species that inhabit a particular region is called ________ diversity.

Accepted Answer

species

Question 15

Which of the following is an example of a disturbance that leads to secondary succession?

Accepted Answer

deforestation

Question 16

The structure of a biological community refers to the types and number of ________ that make up that community.

Accepted Answer

species

Question 17

A(n) _____________ species responds to environmental changes much more dramatically than other species in the community.

Accepted Answer

indicator

Question 18

A climax community is the end of succession.

Accepted Answer

False

Question 19

Which of the following two measurements do you need to know to calculate a biodiversity index?

Accepted Answer

number of species, number of organisms

Question 20

__________ species are non-native species that are introduced into a new ecosystem and flourish.

Accepted Answer

invasive

Questions 20