A vaccine works by stimulating the immune system to produce antibodies without actually infecting someone with that disease. They trigger the immune system to produce its own antibodies as though the body has been infected with the disease. But a vaccine will not make someone immune to a disease, it will simply help the body be able fight the infection better.
Answer:
the first wave of extinction may be related to rapid cooling at the end of the Ordovician Period, and the second phase is widely regarded as having been caused by the sea-level fall associated with the glaciation.
Answer:
The correct answer is D. FADH2
Explanation:
The glycolysis reaction that takes place is:
Glucose (C6H12O6) + 2 ADP + 2 Pi + 2 NAD ⟶2 Pyruvate (C3H4O3) + 2 ATP + 2 NADH + 2 H +
<em>Products: 2 Pyruvate (C3H4O3) + 2 ATP + 2 NADH + 2 H +</em>
Transport
The protein is working to transport substances across the membrane.
