Biology question of the day?

Question

Which of the following describes a single population?

All insects occupying one acre of farmland.

All the animals and plants on an isolated island.

All the birds counted in one day by census takers in the United States.

A group of bacteria all from the species Bacillus subtilis.

Answer 1

A group of bacteria all from the species Bacillus subtilis.  

A poplulation has to be from the same species.

"all insects" - different species.

"all the animals" - " "

"all the birds" - " "

Answer 2

A group of bacteria all from the species Bacillus subtilis.

A population refers to a group of organisms of a specific species.

Answer 3

the last one. a "population" has to be of the same species.

Answer 4

Definitely the first one

Answer 5

A group of bacteria from the species Bacillus subtilis.

Answer 6

The last one i think....

Answer 7

yes, it's the first one, because it's talking about all of the insects in a certain area