Which contribution to the body of scientific knowledge is most recent?

the development of the lever

the confirmation of the double-helix structure of DNA

the discovery of electricity

the theory of evolution

Which of the following is true about the genetic code? A. It is universal among all life on Earth. B. It is universal among animals. C. It codes for chains of triglycerides. D. It is unique to humans

A divide as it relates to Earth science is the A. rate of precipitation that exceeds infiltration. B. stream that flows between two trees. C. largest river system possible. D. elevated land area that separates one watershed from another.

Vascular tissue through which water and minerals travel

Why would DNA need to replicate? Two reasons

A geneticist found that a particular mutation had no effect on the protein coded by a gene. what do you think is the most likely type of mutation in this gene? why?

What is it called when rock fragment slips past another

What are the three major organs of the nervous system

What is the genotype of the offspring missing on the first row of the punnett square? A.) lBlB B.) lAlB C.) lBlO D.) none of the above

Cells throughout an organism can develop in different ways to perform blank.

What is the main function of a fungus's hyphae