Which of the following is the definition of ecology?

-the social movement with a goal to protect the environment
-the recycling of human-made materials to reduce the waste going into landfills
-the study of interactions among organisms and between organisms and their environment**
-the philosophy of living with reduced impact on the Earth

The lowest level of environmental complexity that includes both living and nonliving factors is the
-biome.
-community.**
-ecosystem.
-biosphere.

An ecologist observes similarities between a species of bear in North America and a species of bear in Asia. Which is the most likely reason that these two species have similar physical characteristics?
-Bear species have the same degree of similarity no matter where they are found.
-The two species are part of the same community.**
-Migrating members of the two species bred with one another.
-The species have adoptions that allow them to live in the same type of biome.

Which ecological inquiry method is an ecologist using when he or she sets up a greenhouse and measures the effects of different levels of carbon dioxide on an endangered plant species?
-questioning
-observing**
-experimenting
-modeling

1. C

2. C
3. D
4. C

1. C

2. C
3. D
4. C

1. C

2. C
3. D
4. C
i just got 100% thanks yoongi

100%

C
C
D
C

Thanks may

ash is wrong

C
C
D
C
is correct

1. C

2.C
3.D
4.C

just took the test 100% CCDC

im trusting you guys

ok yeah it’s correct lmao :)