This future of the prokaryotic cell helps the cell to stick to surface
A. cell wall
B. Nucleoid region
C. pilli
D. flagella * d. its not the answer

Which kind of aquatic ecosystem does the photograph most likely show? a. marsh b. swamp c. lake d. river

Describe the primary and secondary immune response in terms of speed and number of antibodies produced?

Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2