Hi!
I think the answer is A
I hope that u an dight
D
producers are plants, so they won’t attack anyone
A dependent variable is how they are recording, measuring or keeping track of the science experiment their doing.
A independent variable is the things/types there using to compare what is the most/least affective in the experiment.
A controlled variable is something that stays the same in the experiment or a group/set used for comparison
We see all of the moon's <em>shapes</em> every 29.53 days. But
there's about 45% of its <em>surface</em> that we never see.