I think it’s B but not sure need sum help plz! Below is one of the food chains in an ocean ecosystem.
plankton
-
shrimp mackerel tuna
Which of these statements is a scientific question that might be asked about
this food chain?
A. Do tuna swim faster than mackerel when they are hunting food?
B. How would a loss of tuna from this ecosystem affect the amount
of plankton?
C. How many more tuna live in this ecosystem than mackerel?
D. Do shrimp eat more plankton or more mackerel in one day?

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous