Answer:
B.) any infectious disease...
Explanation:
<span>Hay fever is a manifestation of allergic reaction
from pollen, which is prevalent during haying season. Hay fever is commonly
known as allergic rhinitis caused by an oversensitive immune system,
particularly the lymphocytes, leading to a misdirected immune response. The body
undergo a sensitization when one develops IgE antibodies and develop a strong
TH2 response against pollen. Then, this newly develop IgE antibodies sticks to
basophils and mast cells with no signs and symptoms yet. However, when one is
expose again to pollens, mast cells will be activated and release mediators who
are responsible for immediate vascular and smooth muscle reaction. After this, local
clinical manifestation of hay fever will be observed. </span>
Answer:
Anterograde amnesia
Explanation:
Anterograde amnesia can be defined as the inability to create new memories, giving rise to partial or complete inability to recall the recent past but the long-term memories formed before then remains intact.
Yolanda has a brain tumor and as the brain tumor gets bigger, possibilities are certain that Yolanda part of the brain is being damaged(hippocampus) which result into Anterograde amnesia because the hippocampus plays a vital role in formation of memories.
Fluorite can scratch a copper coin but cannot be scratched by a copper coin.
This is because according to Mohs scale of hardness, fluorite has a hardness of four. Copper has a hardness of three. Therefore fluorite is a harder mineral than copper and will scratch copper but it will not be scratched by copper.
Mohs based his scale on the fact that some minerals could scratch others. If one mineral could scratch another but could not be scratched by it, he reasoned that it must be harder.
I’m not too sure I think it’s A