Ecosystems and Environments

When there is higher biodiversity...

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

• there is more diversity and higher sustainability of life.

• there is less diversity.

• 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 phytoplankton. Since there are so many fish, there is high biodiversity.

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

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

• 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 higher the biodiversity, the greater the sustainability.

• The lower the biodiversity the greater the sustainability.

• The higher the biodiversity, the less sustainable the ecosystem.

• Biodiversity has nothing to do with sustainability.

High biodiversity is ...

• having a lot of the same organism.

• having a few of the same organism.

• only having one of each organism.

• having a lot of variety of different organisms.

This picture is a great example of ____________ biodiversity.

• hhhmmmm there is no way to know without counting

• high

• low

• moderate

Which do you think has a higher species diversity biodiversity, a food chain or a food web?

• Food Chain

• Food Web

What has a higher biodiversity: a rainforest forest or a frozen tundra?

• Rainforest

• Frozen Tundra

• They have a similar biodiversity.

In general, as you move from the equator to the poles, what happens to biodiversity?

• Increases

• Decreases

• Remains the same

Why is biodiversity in an ecosystem so important?

• Because it can help humans where to determine good places to develop farm land.

• Because places that have a healthy biodiversity are unaffected by major disturbances.

• Because having a high biodiversity allows for fewer opportunities of competition for similar resources.

• Because having a high biodiversity allows ecosystems to withstand disturbances (major changes).

Gradual, natural change in an ecosystem over time:

• Succession

• Movement

• Evolution

• Change