I would say the answer would be D.
Because: If a river is dammed then there is little to no flow going downstream. This will effect the life downstream and also change its conditions.
I Hope This Helped!
Enable the membrane because that what the guy on the top said
D. All 3..................................
The differences in populations are
(Colors)
(Look)
(Shape)
And (Form)
The slight color can be important because of camouflage.
The color can also make the organism look like a different animal.
Lets put snakes for example...
there are also some harmless snakes that are often confused with the coral snake, the shovel-nose snake, the scarlet kingsnake, the Florida scarlet snake, the Pueblan Milk Snake, and other snakes that look like coral snakes.
They do this so they look like a very dangerous animal and dont get hunted.
Answer:
Mostly crows, robins, and jays were the first of a few bird species impacted by the West Nile Virus when it was detected.
No, there were over 300 species discovered to be affected by the virus, these were just the main ones to be impacted.
