The answer would be "goes to help the community where they live." message me if you need anymore help:)
Some things the Romans did for fun were horrible. They enjoyed fights between gladiators, and fights between people and animals. These bloodthirsty shows were put on in front of crowds in large arenas called amphitheatres. Roman emperors paid for free shows at theatres and amphitheatres.
Answer:
placebo control group
Explanation:
In order to determine that a drug has any effect in the body participants of a study are divided into two groups a group which actually receives the treatment and the other group receives a fake treatment. The participants are unaware of which group they belong to.
The fake treatment group is called the placebo control group. If the drug is actually effective then the placebo control group should not shoe the same effects that the treatment group is showing.
Here, the capsule received by group 2 looks like the capsule with the Ginkgo Biloba herb. The participants of group 2 should not show an increased blood flow to the brain. The participants of group 1 should show an increased blood flow to the brain. This would prove that the Ginkgo Biloba increases blood flow to the brain.
Catfish will most likely use information from their taste receptors to (B) find nearby predators to eat.
