A Level Biology - Biodiversity, Evolution & Disease - 2 - Exam Style Questions with Answers

Created on February 27, 2023 By

paruppts12

ALVL_OCR_BIO_4_BIODIVERSITY_2

1 / 10

The following statements describe the benefits of ex situ conservation.
1. Conditions can be maintained at the optimum.
2. Many specimens can be conserved in a small space.
3. The health of individuals can be monitored constantly and treatment provided if necessary.
Which of the following, A to D, identifies the statement(s) that apply to seed banks?

only 1

only 1 and 2

1, 2 and 3

only 2 and 3

2 / 10

Quadrats were randomly placed using a random number generator and coordinates.

Abiotic factors were measured at every point of quadrat sampling

Larger quadrats were required for species A because their mean density was higher

A belt transect has been used to allow calculation of density.

3 / 10

Which of the following is most likely to increase biodiversity?

climate change

monoculture

captive breeding programmes

human population growth

4 / 10

A teacher wrote:
"A garden pond is a dynamic environment that is home to a variety of organisms. The temperature of the pond varies
depending on the weather and the time of year, and this affects the populations of the species that live there."
Which of the following terms applies to the teacher’s description of the garden pond?

a habitat

an ecosystem

a community

a niche

5 / 10

Which of the statements, A to D, best defines the term species evenness?

the relative abundance of each species in an area

the number of species in an area

the spread of species over an area

the relative number of individuals of a species in an area

6 / 10

C

A

D

B

7 / 10

A student is investigating species richness of plants along a sand dune from the sea edge moving inland.
They are testing the hypothesis that ‘species richness increases with distance from the sea’.
Which of the sampling methods, A to D, would the student use?

stratified

systematic

opportunistic

random

8 / 10

Turtle doves, Streptopelia turtur, were once common in farmland in the UK but their numbers have recently been in decline.
Farmers can claim money from the UK government if they farm in ways that encourage the survival of species such as the turtle dove.
Which of the following agreements is/are relevant to the example described above?
1 The Convention on International Trade in Endangered Species (CITES)
2 The Rio Convention on Biological Diversity (CBD)
3 The Countryside Stewardship Scheme (CSS)

Only 2 and 3

Only 1

Only 1 and 2

1, 2 and 3

9 / 10

The sea marigold, Calendula maritima, is a rare species that is critically endangered and has been included in an ex situ conservation project.
Which of the following options, A to D, is a disadvantage of conserving the sea marigold ex situ?

sea marigolds will be at risk from grazing by herbivores

sea marigolds are collected from the wild as seeds

sea marigold seeds are stored in large numbers

it could reduce genetic diversity in sea marigolds

10 / 10

Which of the options, A to D, describes the role of CITES?

restricting the trade in individuals of endangered species

making conservation a part of normal farming practices

stopping the movement of endangered species

requiring countries to develop strategies for sustainable development

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