4. How does the life of a sperm cell vary among the mosses, ferns, gymnosperms and angiosperms?

According to the cladogram, which organisms have roundworms as a common ancestor?

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.

Explain in your own words what caused pangea to separate and why we don't worry about earthquakes in florida.