The diagram above shows the process of recombinant DNA technology. According to this diagram, segments of DNA can be cut using .
A.
enzymes
B.
plasmids
C.
bacterial cells
D.
vectors

The following image is of a diatom. it lives in water and gets food from photosynthesis. it is encased in a hard shell made of something similar to glass or sand . a diatom is a(n) because it has a) multi-celled organism; specialized parts. b) vertebrate; a skeleton. c) insect; an exoskeleton. d) single-called organism; only one cell.

What best explains the inability for life to exist in earth early atmosphere

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?