NO LINKS PLEASE If Charles Darwin could return to the Galapagos Island today, which of the following is an example of a change he might see?

O A. no changes
O B. more islands
O C. more tortoises
OD. new species of iguanas

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

In which of the following relationships is one organism always benefited while the other organism is always harmed