If a cat learns that when he wakes his human up in the morning , the human provides him with food , what effects might this have on the cat's behavior ? Name two . Help!!!

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins

When a population split into two subgroups what is most likely to cause the subgroups to develop different traits?

Asegment id dna that is artificially created from two or more organism through use of dna enzymes in a laboratory is called a segment of dna that is artificially created from two or more organisms through use of dna enzymes in a laboratory is called