7th grade Unit 7 Review

When there is higher biodiversity

• more organisms are likely to die because they can't adapt to environmental changes.

• there is less diversity.

• there is more diversity and higher sustainability of life.

• there is more diversity and lower sustainability of life

A small marine area has phytoplankton as its only producer.  Should the marine biologist be concerned about this ecosystem?

• No the fish do not need the phytoplanton. Since there are so many fish, there is high biodiversity.

• Yes, this ecosystem has low biodiversity.  Without a producer the herbivores will die out leaving no food.

• Yes, this system has high biodiversity; however the fish can adapt and get food from another source.

• Yes, the fish will overate to get all of the phytoplankton that is left, then they will die.

How do biodiversity and sustainability work together?

• The lower the biodiversity the greater the sustainability.

• The higher the biodiversity, the less sustainable the ecosystem

• The higher the biodiversity, the greater the sustainability.

• Biodiversity has nothing to do with sustainability.

High biodiversity is 

• having a lot of the same organism.

• having a few of the same organism.

• having a lot of variety of different organisms.

• only having one of each organism. 

This picture is a great example of ____________ biodiversity.

• high

• moderate

• low

• hhhmmmm there is no way to know without counting.

This picture is a great example of ____________ biodiversity.

• high

• moderate

• low

• hhhmmmm there is no way to know without counting.

What is this biome?

• Arctic Tundra

• Desert

What is this biome?

• Grassland

• Desert

What is this biome?

• Desert

• Arctic Tundra

• Tropical Rainforest

What is this biome?

• Desert

• Arctic Tundra