Some of the Martians settle on another planet with other alien life. Most of them cannot interbreed with this alien life because the aliens do not pick up on any mating cues. What happened here?

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

Theories basic to all of the life sciences include the germ theory of disease. theory of evolution by natural selection. o two of these answers are correct none of these answers are correct o cell theory.

What drives an advertising campaign?