What characteristics below distinguishes viruses from other types of parasites? a. they need the blood of the host to survive

b. they need to live inside of the host to survive

c. they are not considered to be alive

d. they need a host to complete feeding

When organisms are classified ,they are given a two part name

If the coding part of an mrna molecule is 1800 nucleotides (bases) in length, this molecule will contain codons and code for a polypeptide that is amino acids long.

Which pair of sentences is describing the same velocity? a. a car is parked. a car is moving in circles. b. a bus drives 40 miles per hour north. a truck drives 50 miles per hour north. c. a boy walks east at 6 kilometers per hour. a girl walks west at the same speed as the boy. d. valerie rides her bike south at 8 kilometers per hour. owen jogs south at 8 kilometers per hour.