There was no sunlight, in one way or another sunlight is the source of almost all life on the surface of the earth
Answer:
it is a catecholamine that stimulates alpha1 adrenergic receptors and, slightly, beta1 adrenergic receptors, without beta2 effect. It is the vasoconstrictor drug par excellence.
The best answer to the question above would be letter d. The sentence presented which is 'Researchers helped further the biological perspective when they demonstrated that electrical stimulation of the brain could evoke emotional responses in animals.' demonstrates how new discoveries can influence perspectives.
From what I remember it's called a substrate
The correct answer is "wildlife sanctuary"
These sanctuaries are places that emulate conditions met in natural habitats that are long gone and thus the animals that live in them have a place to live freely and survive.
