Answer:
I'm glad you asked!
Explanation:
That is True! Cholesterol causes there to be a more likeness of a heart attack.
Answer:
Amino acid are the monomers of protein.
Many amino acids link together by peptide bonds, forming proteins.
Gathering information with your eyes is called visual
perception. Option “D” is considered the correct option. Under normal
circumstances light is received by the eye. This light is then broken down into
two parts and they are peripheral vision and central vision. The information
then gets transferred to the brain which is then analysed to extract the actual
information. This is place for getting the actual perception. This is how the visual
perception works with the help of the eye.
Answer:
Option c (No, T cells left from the previous infection can kill any virus.
)
Explanation:
When ever viral infection occur, body's immune system start to fight against it by activating B-cells and T-cells.
B-cells produce antibodies that bind with virus and act as label. This label indicate virus as foreign substance. Hence T-cells recognize it and kill it. Furthermore, B-cells form memory cell that keep the viral memory. if this viral infection occur again in future, T-cell recognize it and eliminate the virus.This mechanism is called immunity.
ANSWER: Nitrogen, oxygen or gas, dust particles
