Environmental Changes and Populations

When change occurs, organisms will:

• only adapt.
• adapt, migrate, or die.
• migrate or die.

How would building a highway affect an environment?

• Saltwater pollutes freshwater.
• Marine life is threatened.
• Animals cannot travel through their ecosystem the same.

What is a naturally occurring change to an environment?

• Pollution
• Hurricane 
• Building roads

If an organism cannot adapt or migrate when a dramatic change occurs, it may die.

• True
• False

A PLANT is a

• Producer
• Consumer
• Decomposer

An animal that eats only plants is an...

• carnivore
• omnivore
• herbivore
• decomposer

Tags

CCSS.RI.5.5

CCSS.RI.6.5

CCSS.RI.7.5

CCSS.RI.8.5

CCSS.RI.9-10.5

Overlapping food chains in an ecosystem make up....

• food web
• food chain
• niche
• symbiosis

When two or more different organisms have to share food, water, space or shelter it will lead to:

• Competition between the organisms

• Dependency between the organisms

• They will share and get along

• They will eat each other

How does this organism get energy in an ecosystem?

• It is a herbivore that is consuming the soil

• It is a carnivore that feeds on insects in the soil

• It is a decomposer that gets energy by digesting dead insects

• It is a producer that gets energy from the Sun

The habitat of a moth species included trees with both light and dark colored bark.Therefore the moth species included both light and dark colored variants.Then the light-colored trees were wiped out by a disease, and within a few years nearly all the moths in this forest were dark colored. Which of the following choices BEST explains what happened?

• The light moths that survived all had dark offspring in order to adapt to the change.
• The dark moths were less visible to predators, so mostly light moths were eaten.
• The few light moths that survived did not mate, and therefore they had no offspring.
• The light moths changed their wing pigments to darker colors to avoid being eaten.