Topic 7 Ex 3 Read About It

Pollinators help plants to _______.

• Reproduce

• Die

• Move

• Change color

What do animals depend on pollinators for?

• Energy from plants

• Water

• Health

• Air

What is genetic diversity?

• The variety of species in an ecosystem

• The genetic differences among individuals in a population

• The number of ecosystems on Earth

• The adaptation of species to environmental changes.

Genetic diversity allows for variations and adaptations. True or False?

• True

• False

Biodiversity sustains the health of individual organisms by allowing for a higher variety and quantity of what?

• Biotic resources

• Abiotic resources

• Both biotic and abiotic resources

• Neither biotic nor abiotic resources

Biodiversity includes many producers, which support what?

• Unstable food webs

• Stable food webs

• No food webs

• Limited food webs

Biodiversity allows for multiple predator-prey relationships and multiple roles for organisms, making food webs more flexible and allowing what resources to be used sustainably?

• Only biotic

• Only abiotic

• Both biotic and abiotic

• Neither biotic nor abiotic

Fill in the blank: When the biodiversity of an ecosystem decreases, it does not function properly because there are fewer resources for ________.

• Food

• Water

• Space

• All of the above

Fill in the blank: An ecosystem with biodiversity functions to ensure sustainable use of resources such as ________.

• Air

• Water

• Soil

• Light

Fill in the blank: An ecosystem with a high level of biodiversity is likely to be more _______ to environmental changes.

• vulnerable

• resistant

• indifferent

• susceptible