Answer the questions

This is for the table at the top

Plentiful roaming space- increase - because they have more space they can live in.

Severe drought - decrease- because they wont have enough water

abundant food source - increase - Because they have enough food to sustain themselves

Habitat destruction - decrease - Because they won't have a place to live in

Elimination of predators - increase - Because there will be less animals hunting them for food.

Lack of competition - increase - Because they won't have to compete for food which will allow them to have more.

Disease outbreak - decrease - Because the disease will kill a lot of them and can potentially cause birth rates to go down

the areas around the equator

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.