Infer why colonial organisms that lived grouped together might have been one ofvthe first steps toward multicellular organisms in the course of evolution.

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies

haploid cells;

answers are:

lysogenic     viral dna merges with host cell dna

lysogenic     no symptoms

lytic               viral dna takes over

lysogenic     virus does not destroy host cell

lytic               virus destroys host cell

lytic               induces symptoms of viral infection

lysogenic       cell reproduces and spreads provirus