Allergic responses to inhaled antigens occur when an individual is first sensitized to the antigen (i.e., the allergen), inducing an immune response and then has a subsequent exposure to the same antigen. The sensitization phase is characterized by <u>Induction of a CD4 T cell type II immune response</u>.
The process by which your body becomes sensitive to a particular substance is called sensitization. When your immune system becomes sensitized to an allergen, you can develop certain symptoms.
Antigens that can induce an allergic response are called allergens, and they are often derived from non-infectious or non-microbial sources.
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Catalysts speed up reactions.
Answer - Cyanobacteria aka Algae that contributed in creating O2 for the atmosphere as a byproduct thru Photosynthetic.
Reason - Of course Algae make up mainly the whole world in waters and they do photosynthesis to give off oxygen in the atmosphere.
Flaccid paralysis is a neurological condition characterized by weakness or paralysis and reduced muscle tone without other obvious cause
Option D. a & b a) endospore forming bacterium b) clostridium botulinum
A common cause of flaccid paralysis is anterior spinal artery syndrome, an occlusion of the anterior spinal artery. Obstruction can be caused by spinal cord trauma, cancer, arterial disease, or thrombosis.
Flaccid paralysis causes muscles to contract and go limp. lead to muscle weakness. Spastic paralysis affects tight, rigid muscles. Muscles may twitch or spasm uncontrollably.
Acute flaccid myelitis can be caused by infection with a type of virus known as an enterovirus. Respiratory illness and fever due to enteroviruses are especially common in children. most people recover.
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Answer:
A
Explanation:
A.
Only aerobic cellular respiration requires O2.
