Because an organism with a genetic variation may have better chances of breeding and passing on that trait if the trait is beneficial to the survival of that organism. This leads to that trait being passed on and becoming wide-spread over generations of reproduction; natural selection.
Mixtures can be separated my physical means is true
mixtures are made up of more than one component is true
all else is false I believe
Explanation:
The dog salivating is an example of responding to stimuli
Answer:
D
Explanation:
the picture has ripples and is dry and cracked, hence the envirmoment having to be dry and windy.
The reason that this can occur in a relatively short time span is because of the speed of bacteria reproduction. They are able to reproduce rapidly which means they can evolve to be resistant to the antibiotics created.
