If egg and sperm each give 12 chromosomes, how many chromosomes are in each somatic cell?

The many volcanoes located along the edge of the pacific ocean make up the ring of fire. how does subduction play a role in the volcanic activity in the ring of fire?

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?

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.