"" are the components of blood that protect against pathogens and aid in blood clotting. a. red blood cells b. white blood cells c. muscle cells d. neurons e. epithelial cells

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Urgent. the table shows the relative blood flow through some organs in the human body that is, the percentage of blood that flows through a given organ, through which organ(s) does all the blood flow? explain the effect of exercise on blood flow to skeletal muscles.