Are there thousands of different species of club mosses and horsetails?

Do x-rays have lighter or lower frequency than light waves? Which of the following terms refers to the wax death masks used to create the high level of naturalism in portrait busts? Does the large intestines have a sphincter at at one end? Who does a permanent move from sea level to a high altitude effect red blood cell count? Is three phase induction motor is a fixed speed motor? What dose the stem transport to the flowers and leaves? How does violet pollinated? What are chromosome responsible for? How does salt and ink dissolve at the same rate? What is the number of the bonding electrons pair in the NO2- ion? An inflammation of the synovial membrane is known as? How many moles are there in 8 g sodium hydroxide? What place does rusting affect? Lactated ringers and normal saline are examples of what type of IV fluid? What is a postal office in cell analogy? Does the size of the column affect the amount of hydrostatic pressure? What is the meaning of straight sentences? Where are ribosomes formed in cells? How does one remove Stickiness on a plastic surface added by a strong tape? What is an allergic response?