Jane starts to blink her eyes when her brother shines a flashlight at her. Why does Jane start blinking her eyes?

1 answer:

8 0

The correct option is this: BECAUSE OF A SPINAL REFLEX.
Reflex action refers to the involuntary movement of any part of the body when such a part receive a stimulus. The response to reflect action is always immediate and it occurs without the consent of the affected person. Examples of reflex action is the contraction of the pupils when light shines in one's eyes and the quick withdrawal of one's hands when one touch a hot object.

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Which of the following is true of aerobic respiration compared to anaerobic respiration?

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The correct sequence is 1, 2, 3, 4, 5 and 6.

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An extreme allergic reaction to food, venom, or medicine is termed as anaphylaxis. However, the majority of the cases of anaphylaxis occur due to the consumption of foods like tree nuts or peanuts or by stinging of a bee. Some of the signs of the condition are low pulse, rashes, and at certain occasions shock, also called anaphylactic shock.

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1. The binding of the IgE molecules takes place with the basophils and mast cells.

2. The cross-linking takes place between the antigen and the neighboring IgE molecules.

3. The process of degranulation takes place.

4. Discharging of chemical mediators like histamine takes place.

5. An elevation in smooth muscle contractions and capillarity permeability is witnessed.

6. Finally, the eosinophils and neutrophils move towards the affected region.

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