Approximately 2 million years ago the genus australopithecus gave rise to a new genus, homo. today, we retain the genus as homo sapiens. what important fossil evidence most likely scientists change the classification of those early human ancestors? a) opposable thumb b) teeth and skull size c) pelvis and leg bones d) spine alignment and foot size

Sammi is studying the interaction of the digestive and circulatory systems in the human body. she has listed various processes that occur in each of the systems. put the processes in order to describe the interaction between these two systems. tiles nutrients diffuse through the villi of the small intestine.digestive processes break nutrients down in the mouth, stomach, and small intestine.blood is pumped through the circulatory system to deliver nutrients to other organs.nutrients are ingested at the mouth.nutrients enter the capillaries of the circulatory system. sequence

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?