The main difference between a prokaryotic cell and a eukaryotic cell isa)the ability to grow. b)the ability to reproduce. c)the presence of nucleic acids. d)the presence of a true nucleus.

The energy available as a result of the motion of a body is called energy. -potential -gravitational -kinetic -chemical

Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen

The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations