2 Commensalism is a relationship
between organisms in which:
A one organism benefits while the
other organism is unaffected
B both species benefit from the
relationship
C one organism feeds on the
tissues, cells, or fluids of the
other organism
D both organisms harm each other

A. one organism benefits while the other organism is unaffected.

Explanation:

the tricuspid valve is present between right atrium and right ventricle

a. population growth is decreasing

-2

+4

-10

-3

-8

-3

so the population decreased by 24 because 3+3+8+10+2=26-2=24.

hoped i !

explanation: