The dna molecule may be described as? a. unstable b. not complex c. coiled

The illustration shown is an ovum, a female sex cell. a mutation in this cell may be passed to the woman’s offspring during a) birth. b) mitosis. c) dna replication. d) sexual reproduction

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

Tom wants to conduct a scientific study but he needs to finish by the end of the school year. what practical way could tom work around this limitation and be successful in his study?