Soft tissue in the body looks dark on an x-ray image. what does that indicate about how soft tissue interacts with x-rays?

Select all the true statements about the cosmic microwave background radiation

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.