<span>Thylakoid membrane.
Hope this helps!
-Payshence xoxo
</span>
Answer:
(D) There are mice that are unable to form antibodies in response to herpes infections, and these mice survive these infections without ever developing keratitis
Explanation:
Option A: irrelevant, we do not care about other viruses.
Option B: There is no relation with keratitis.
Option C: This could mean that antibodies are not responsible for keratitis, so it does not support the hypothesis.
Option D (correcto answer): A lack of antibodies equals a lack of keratitis; this supports the argument that antibodies are involved in the development of keratitis.
Option E: misleading and does not support the hypothesis.
Answer:
1. There is a small sample of the disease that's being tried to prevent so that the body can get used to fighting it.
2. In the vaccine there is a small sample of a disease that the vaccine is being used to prevent. The white blood cells fight harmful bacteria and so prevent diseases.
3. A vaccine works by training the immune system to fight viruses or bacteria.
4. The antigenic variability of the virus and other viruses and bacteria acts as infective agents.
Answer:
b. they are both asymmetrical. Placozoans have endoderm and ectoderm while sponges have no tissue.
Answer:
Vertebrates are animals with backbone.
Invertebrates are animals without backbone.
