Which organelles are labeled d and what is one feature that distinguishes the from the Potter labeled organelles

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

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.