Question 1
Deep sea vents on the ocean floor are surrounded by unusual organisms such as chemosynthetic bacteria and eyeless shrimp.
Which statement(s) about these ecosystems is/are true?
1 - the temperature of the vents influences the organisms that live there
2 - a predatory octopus would affect the balance of these organisms
3 - the number of eyeless shrimp found at each vent is constant
1, 2, and 3
only 1 and 2
only 2 and 3
only 1
|
Question 2
Two species of animal are found in the same area of forest and grassland. In the spring and summer they eat the same plant food. However, in the autumn and winter one eats nuts in the forest and the other eats roots on the grassland.
Both species are preyed upon by the same predator. Numbers of root-eating animals are reduced most by this, but they recover faster as they reproduce faster.
What can be concluded about these two species of animals?
1 - they are part of the same community
2 - they are at different trophic levels
3 - they occupy different habitats
4 - they have different niches
1, 2, and 4
2, 3 and 4
1 and 2 only
1 and 4 only
|
Question 3
The Millennium Seed Bank has over two billion seeds in storage.
What describes the type of conservation carried out at the Millennium Seed Bank?
in situ conservation of species biodiversity
in situ conservation of habitat biodiversity
ex situ conservation of species biodiversity
ex situ conservation of habitat biodiversity
|
Question 4
The sea marigold, Calendula maritima, is a rare species that is critically endangered and has been included in an ex situ conservation project.
What is a disadvantage of conserving the sea marigold ex situ?
it could reduce genetic diversity in sea marigolds
sea marigolds are collected from the wild as seeds
sea marigold seeds are stored in large numbers
sea marigolds will be at risk from grazing by herbivores
|
Question 5
Termites are insects that build large nests that contain millions of termites of the same species.
These nests are common in tropical savanna, which typically consists of grasses with widely spaced trees. Here, the termites feed on wood and other dead plant material.
Which statement is correct?
the termites in the nest form a community, the savanna is the ecosystem and they feed as decomposers
the termites in the nest form a community, the savanna is the ecosystem and they feed as primary consumers
the termites in the nest form a population, the savanna is both the ecosystem and the habitat and they feed as primary consumers
the termites in the nest form a population, the savanna is their habitat and they feed as decomposers
|
Question 6
Which of the following statements about ecosystems is not true?
an ecosystem is affected by biotic and abiotic factors
an ecosystem is all of the organisms and habitats in a large area
an ecosystem is dynamic
there is a flow of biomass between trophic levels in an ecosystem
|
Question 7
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 term applies to the teacher’s description of the garden pond?
a community
an ecosystem
a habitat
a niche
|
Question 8
Ash trees are common throughout the UK. They often grow in dense woodland.
What is an abiotic factor that is likely to affect the growth of young ash trees?
the availability of light underneath larger trees in the wood
the availability of oxygen in the air
the presence of a pathogen that causes ash dieback disease
the species of bacteria present in the soil
|
Question 9
What is CITES?
a conservation charity
an international agreement to control trade in endangered species
a seed bank
a botanical garden initiative
|
Question 10
What is a challenge faced by botanical gardens in conservation?
plants growing too rapidly
the possibility of altering the genetics of stored seeds
lack of public interest
only focusing on local plant species
|
Question 11
What is one way that botanical gardens contribute to conservation?
by increasing the number of exotic species
by cultivating plants that are increasingly threatened in the wild
by focusing only on aesthetic plant displays
by serving as primary tourist attractions
|
Question 12
What is a primary issue with storing seeds as a conservation strategy?
high cost
legal restrictions
potential loss of viability after thawing
limited space for storage
|
Question 13
Why might seeds from the same species be collected from different sites for storage in a seed bank?
to reduce costs of seed collection
to ensure a good genetic diversity
legal requirements
to prevent cross-contamination
|
Question 14
What is the importance of maintaining genetic diversity in species conservation?
it ensures a consistent appearance of the species
it helps the species adapt to changing environments and threats
it makes the species more attractive to eco-tourists
it is required by international law
|