The first box is buffer than the second box is ph
Answer:
1.chemical receptors
2. nerves carry signal to the brain
3. nerves carry signals to the muscle
4. the brain process these signals
5. the shark changes direction and swims towards pray
Explanation:
Cognitive activities- things that make your brain think and process thoughts
snoring, breathing are automatic are not, Talking can be a cognitive activity, but I think the correct answer is C. Forming perceptions.
Because there will be no bias if the reasearcher knows which drug is being given and the subject wont know what they are being given so both may assume that the subject is going to feel happier and expect to have an elevated mood and relieve feelings of depression. Hope this helps :)