Which of the following can we get from plant stems? A. flax seed B. cotton C. carrots D. hay

Select the correct answer from each drop-down menu. the lac operon in e. coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .

Nucleus has two lobes; contains granules of lysosomal enzymes; functions in attacking parasitic worms and plays complex roles in inflammatory diseases like allergies and asthma. what blood cells are described?

How are viruses different from eukaryotic cells?