What are 3 basic principles of natural selection and evolution?

Over many hundreds of years, a stream bed slowly dries up. If the water supply suddenly reappears in the stream bed, which of these is likely to happen?

Cells do not function as well at high temperatures because the rapid movement of the molecules of the cell membrane makes the cells leaky. Also, many proteins denature and lose their function at high temperatures.

What trophic levels do humans occupy on an ecologcal pyramid?

What is the job or function of the ribosomes? A - The Brain or control center of the cell B - The power plant or energy's producers C - The Factories of the cell that makes what the cell needs like proteins

What would the membrane potential if plasma only permeable to k?

Find the common radio of the sequence. - 4,8,-16,32,

Grandpa Sam used to tell his grandkids how he first laid eyes on Grandma Sylvia. "When I was courting your granny, I was dazzled by her beautiful, LONG eyelashes. What a looker she was." "Yes, and a handsome man he was too," said Grandma Sylvia.

Jim is categorized as poor. Thus Jim's daily income must be less than how much dollars? Jim must be earning less than dollars per day.

Why does blood pressure decrease as the blood travels from arteriesto arterioles to capillaries?

Kangaroos that nurse their young in a pouch are what type of mammal? monotreme marsupial placental mammal