1. Energy flows through an ecosystem in a two-way direction.
false
true

TRUE

First it flows from the sun to autotrophs, or producers. Then it flows from producers to consumers. Energy never flows backward from consumers to producers. When you draw a food chain, always begin with energy from the sun to a producer.

Explanation:

Energy flows through an ecosystem in a two-way direction.

false

true

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.