Where would you go to collect a water sample that contains both algae and protozoan ?

How do you transfer mrna into codons ? i'm so confused : (

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one

What materials must dams have to produce electricity, and what must occur?