A.) organisms within a population must have some genetic variation.
B.) there must be more male organisms than female organisms.
C.) all of the organisms within a population must be exactly the same.
D.) one population must become extinct so another can be created.
A. organisms within a population must have some genetic variation.
Answer:
A watershed is land that contributes water to a stream, river, lake, pond, wetland or other body of water
A watershed often contributes water to lakes or streams.
Hope this helps, if not, comment below please!!!!
Answer:
"The control experiments are basically done to compare the main experiment and the experiment done in controlled manner so as to observe the changes and also to minimize the changing effect"
Explanation:
The scientists include the control in their experiments which can help them to minimize the changes and can observe the changes meticulously. In control experiment the observation are made with minimum effect of the variables leaving the independent variable. This type of experiments help in increasing the reliability of the output. The control experiments are basically done to compare the main experiment and the experiment done in controlled manner so as to observe the changes.
B) Rain
C) Sleet
D) Snow
Answer:
I think the answer is C sleet.
Explanation:
Rain melts on its way down, so it can't be that. Hail and snow refreeze, so the answer is sleet.
I hope this helps :)