Looking at figure 25-1 above. wich letter represents the hollow nerve cord?

a

b

c

or

d

Personality disorders typically become recognizable in:

How does the skin protect the body from dehydration?

Relationship between codon and amino acids

The Atomic Theory offers an explanation of a small particle of matter, called the atom. What must be true for a scientific theory, such as the atomic theory, to be strong and well supported?

The role of isolating mechanisms in maintaining the integrity of a species

Which best explains the difference between a ball-and-stick model of a chemical compound and a space-filling model? Ball-and-stick models can show compounds in three dimensions, but space-filling models cannot.

Which of the following are not allowed on public land?

Prokaryotes that belong to the kingdom Eubacteria and carry out photosynthesis are called

Which law states that each planet revolves so that an imaginary line connecting it to the sun sweeps over equal areas in equal time intervals?

Why do you think keeping salt water shellfish such as clams and mussels in freshwater kills them? support your answer?