Wegener formed the theory of continental drift in 1912. What prevented research of the ocean floor, paleomagnetism, and earthquakes at that time?

The Chinese tallow is a tree that grows quickly and starts producing seeds sooner than other trees. A tallow tree can start producing seeds in 3 years, while an oak tree takes 25 years.

HIV is a virus that attacks your immune system. What kind of problems can arise if your immune system is being attacked? You will be able to fight off infections. Your body will not be able to fight off disease causing pathogens.

10. Agrade 5 student is doing a plant experiment where they are trying to see what colour of light is best for growing plants. They are using green light, red light and white light.

However, when the proteins formed by the genes have their amino acids sequenced, there is no difference observed between the two. What is the most likely explanation for this observation?

If a child belonged to blood type o, he or she could not have been produced by which set of parents?

How does society affects science

Which is visible evidence of energy passing through water? a sea arch a density tide a wave the Coriolis effect

Which climate favors mechanical weathering? A. dry climate B. cold climate C. warm climate D. desert climate

What would be a good hypothesis for does caffeine increase the heart rate of an earthworm

How many people have lost their lives on 9/11?