Answer:
the answer is true
Explanation:
I looked up the definition and B cells are activated and they proliferate to produce antibody become cells that produce antibodies for that antigen .
Answer:
The triceps is located on the back so is O true :)
Explanation:
Answer:
Yes.
Explanation:
Look it up if you don't believe me :)
Answer:
In this scenario, the green light is a(n) <u><em>signal</em></u>.
Explanation:
In the above scenario, with time, the pigeon has learnt that he will be rewarded only when the green light is on. Such a condition is known as learned behaviour. In the future, the pigeon will only peck the button when the green light is on because he will know that he will be rewarded for pecking the button only when the green light is on. Hence, the green light is the signal for the pigeon to start pecking the button.
