3. mammals and birds are able to maintain relatively constant body temperatures. in cold weather, their internal temperatures could be many degrees warmer than the air temperature around them. how is the heat energy required to warm the body created?

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin

Will ! a cell containing a 3% sucrose solution is placed into a beaker containing a 7% sucrose solution. assume the cell’s membrane is permeable to water, but not permeable to the sucrose. where will the water diffuse? explain.