What is a community?
A.
a unit containing all the organisms in a given area, and their environment, interacting together
B.
a unit in which energy is transferred from one organism to the next
C.
all of the populations of different species in an ecosystem
D.
all the organisms of one species in a given area
Exam No：0610_s18_qp_23 Year：2018 Question No：36
Answer:
C
Knowledge points:
19.1.1 State that the Sun is the principal source of energy input to biological systems
19.1.2 State that the Sun is the principal source of energy input to biological systems
19.1.3 Describe the flow of energy through living
19.1.4 organisms including light energy from the Sun and chemical energy in organisms and its eventual transfer to the environment
Solution:
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