If the polymerase chain reaction process or pcr were a machine, what kind do you think it would it be? a a printer b a shredder c a fax machine d a copier

The science for classifying and naming organisms is known as

Which of th following best describes how genes produce traits in an organism?

Which one is an advantage of external fertilization a. the offspring are genetically identical to the parents b. more eggs can be fertilzed at one time c. more sperm can be released at one time d. more protection is available for developing plz