Based on the method of getting energy, which kingdom(s) of creatures would be considered producers and be the base of any food web or chain within a given community of organisms?

Nucleic acid certain protein cell membranes certain carbohydrates

The first generation of offspring from the cross of two parents is called the a.f1 generation b.f2 generation c.short generation d.p generation

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