Researchers randomly assign study participants to one of two groups: the participants receiving the artificial sweetener are in the group and the individuals receiving the sugar packets are in the group.

test, control

Explanation:

In an experiment, there will be always a group of individuals, that are going to simulate the normal conditions, in this case the people that are receiving the sugar packets are the one that is called control.  This group are simulating the natural diet, the one that it has been used since humankind discover the sugar cane.

The other group, the one that is receiving the artificial sweetener is called the test group because is the "new" substance that is going to be compare with the ancient, traditional sugar.

In a research, when you have to groups like this, you can compare the effect of the new substance like if the insulin level increases or decreases or still the same.

like this.

answering: it is all very simple. after you join you find many questions in the main page. you can click on answer if you know, then there will be a box written 'know the answer? add it here'. click on that and start writing your answer. don't copy answers from the net!

questioning: there will be an option for asking questions too. click on 'ask your question'. write your question there and give the correct subject and the number of points.

you will get points when you answer and also lose points when you question. you will get new ranks with many points and brainliest answers.

so we know the answer cannot be c because no insect or animal starts as an adult

the answer is a. a swimming larvae

because since they are sea animals they automatticaly have to know how to swim they cannot just sink to the bottom

sorry if this is the incorrect answer.