Answer: Vaccines are made from a protein or other small pieces taken from a virus or bacteria.
Explanation: A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. Meaning my answer is correct.
Answer:
Explanatio1) Assuming an adult person has an average mass of m=80 kg, and assuming it takes about 30 seconds to climb 5 meters of stairs, the energy used by the person is
So the power output is
n:
I would help if I was in biology
Answer:
for number 4 the answer is A, and i am not entirely sure about number 5 but i think it is C
sorry i couldn't help more
Energy is used to create matter.
