The superior vena cava empties what

Which of the following conditions leads to germination of a spore into a vegetative cell? a. a nutrient rich environment b. water c. high temperatures d. all of the above leads to germination of a spore

Looking at a cell under a microscope, you note that it is a prokaryote. How do you know? (a) The cell lacks cytoplasm. (b) The cell lacks a cell membrane. (c) The cell lacks a nucleus. (d) The cell lacks genetic material.

What kind of understandings does science contribute about the natural world?

Explain the four different parts of natural selection

Change in species is described as a process that usually occurs over long periods of time. Yet, even though antibiotics have only been widely used for fifty years, scientists recognize that overuse of antibiotics has led to antibiotic-resistant

How would you distinguish adaptations and variations for a younger student?

Which one of these equations applies to a bond that currently has a market price that exceeds par value?

What is the science that deals the study of human beings?

You have AB + blood. Your spouse has AB - blood. What is the probability that your first child will have O - blood?

Which type of plant cell is undifferentiated?