The Fill in the Blank is a small access port in the shell of a bean that allows water to reach the developing plant.

If a robot fixed another robot is it a engineer or doctor?

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm