Answer:
b
Step-by-step explanation:
Answer:
a=-20
Step-by-step explanation:
-4(7a+5)=-160
7a+(-20)=-160 Multiply -4 and 5
7a=-140 Subtract -20 from -160
a=-20 Divide 7 by -140
Competition is most intense between closely related species that use the same resources, as both species are competing for these limited resources.