By when were robust australopithecines extinct?

a. 4 mya

b. 6 mya

c. 1 mya

d. 3 mya

The term "central dogma of molecular biology" was coined by a co-discoverer of the structure of DNA, Francis Crick. The term is used to define how information flows in biological systems.

What will most likely be a result if all of the mitochondria are removed from a plant cell?

A soccer ball is rolled across four different surfaces:a tile floor, a paved road, a grassy field, and a cement side walk. which surface will slow the movement of the soccer ball the most? explain why.

How tall will Mt Everest be in one million years

What is pleural sacs?

How does the live ensure that the body will have a constant supply of energy

How do scientific theories compare to hypothesis

A woman gives birth to a son. Two years later, she gives birth to another son. What is the probability that her third child will be a girl? Explain your reasoning.

What are the two major purposes for mitosis?

How do organisms come to live on newly formed volcanic islands?