At a certain lake, the community is smaller

in winter because?
I have a quiz plz fast

A some of each species of animal have died

B some species of birds have migrated

C more animals have arrived for the winter so that they can keep warm together

D there is more ice on the lake and so less room for organisms.

Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect

How does an angiosperm prevent self pollination

Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.