<span>This person is protected from the disease due to a slow production of antibodies. The person already had lack of antibodies before contracting the disease, a primary immune response the moment they contracted the disease, and they can use their slow production of antibodies to combat the disease as a secondary immune response if they come in contact with it again.</span>
Answer:
Controlled variables include time, temperature, volume of solution being tested, and volume and concentration of reagent (Benedicts or iodine) used. Three unknown solutions will be tested for the concentration of reducing sugars using Benedict's solution.
Explanation:
Answer:B cell sub-type that are formed within germinal centers following primary infection. Memory B cells can survive for decades and repeatedly generate an accelerated and robust antibody-mediated immune response in the case of re-infection (also known as a secondary immune response).
Explanation:
The question is incomplete, so the complete question is as follows:
A chloroplast has stopped producing ATP and NADPH. Which of the following is most likely causing this?
a.The chloroplast has used up its supply of chlorophyll molecules.
b.Electrons have stopped moving through the electron transport chain.
c.The sun has risen and the chloroplast now can make more chlorophyll.
Answer:
b.Electrons have stopped moving through the electron transport chain.
Explanation:
ATP and NADPH are produced in the light dependent reaction stage of the photosynthesis that occurs within chloroplast grana.
ATP and NADPH are produced due to the movement of electron and proton (H+) in the electron transport chain, so if the movement of electrons will stopped in the electron transport chain, the formation of ATP and NADPH will also get stop.
Hence, the correct answer is "b".
The answer D, the octet rules state they have to have a full shell of eight valence electrons to be stable.
