postprac5

Question 1

In comparison to Galeolaeria caespitosa, Nereis sp. have less developed chaete to assist in locomotion. True or False?

Select one:
True
False

Answer 1

False

Question 2

If an ecologists says that a secies is “dispersal limited”, this typically means that the species

Select one:

a. does not fully occupy its climatic range
b. will go extinct
c. needs to grow more densely
d. occupies its full climatic range

Answer 2

a. does not fully occupy its climatic range

Question 3

The polychaete Galeolaeria caespitosa is a

Select one:

a. Herbivore
b. Carnivore
c. Filter feeder
d. Deposit feeder

Answer 3

c. Filter feeder

Question 4

The parapodia and chaetae in Galeolaeria caespitosa are reduced (compared to Nereis) and are used to anchor the worm in its tube. True or false?

Select one:
True
False

Answer 4

True

Question 5

Which factor does NOT directly affect the distribution of biomes?

Select one:

a. Proximity to the equator or the poles
b. Temperature
c. Precipitation
d. Herbivory by ungulates

Answer 5

a. Proximity to the equator or the poles

Question 6

What is the biggest “biome” on the planet?

Select one:

a. Cropland, pasture and agricultural land
b. Deserts and Xeric Shrublands
c. Temperate grasslands, savannahs and shrublands
d. Mediterranean woodlands and, and scrub

Answer 6

a. Cropland, pasture and agricultural land

Question 7

The naturally occurring biome which occurs in wet, warm climates is

Select one:

a. agricultural land
b. desert
c. tundra
d. rainforest

Answer 7

d. rainforest

Question 8

Three levels of organisation can be recognised in ecological systems. These are:

Select one:

a. Population, Community, Ecosystem
b. Population, Ecosystem, Biome
c. Genus, Species, Variety
d. Individuals, Community, Biome

Answer 8

a. Population, Community, Ecosystem

Question 9

The biomes most likely to be threatened by climate change are:

Select one:

a. Tropical Grassland and Rainforest
b. Tundra and Taiga
c. Desert and Chaparral
d. Temperate Grassland and Woodland

Answer 9

b. Tundra and Taiga

Question 10

Which of the following biomes has the highest biodiversity?

Select one:

a. Tundra
b. Grassland
c. Taiga
d. Rainforest

Answer 10

d. Rainforest

Question 11

What body features of Galeolaria caespitosa are different to Nereis sp.?

Select one:

a. Tentacles
b. All other answers are correct
c. Operculum
d. Chaetae

Answer 11

c. Operculum

Question 12

Which of the following features relate to where Nereis sp. lives and how it collects food?

Select one:

a. All other answers are correct
b. Nereis sp. move around the habitat and so have pronounced parapodia for mobility.
c. Feeding apparatus include retractable jaws for capturing prey
d. The chaetae are arranged in dense bundles on each pair of parapodia and are used for locomotion.

Answer 12

a. All other answers are correct

Question 13

Complete the following sentence: A location’s average temperature, humidity and precipitation over a long period of time are referred to as its …

Select one:

a. Climate
b. Weather
c. Biome
d. Ecosystem

Answer 13

a. Climate

Question 14

Which of the following strategies would the polychaete Galeolaria caespitosa use to avoid desiccation at low tide?

Select one:

a. Close the two valves of its shell
b. Move to a cool, damp place between the tubes
c. Construct a burrow in the organic matter between the tubes
d. Retreat into its tube and seal the entrance

Answer 14

d. Retreat into its tube and seal the entrance