Cell A is prokaryotic because PRO rhymes with NO and EU rhymes with DO. PROkaryotic has NO nucleus while EUkaryotic DOes have a nucleus
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When the gravitational pull of the Sun and Moon are combined, you get more extreme high and low tides. This explains high and low tides that happen about every two weeks. Note: this figure is not to scale. The Sun is much bigger and farther away.
Competition , predation and various form of symbiosis can powerfully affect an ecosystem
Answer:
Allergy
Explanation:
Allergy occurs when the body system reacts to the introduction of a foreign substance. The immune system plays an important role in the elimination of substances that are capable of causing harm to the body, substances that trigger an allergic reaction in the body is known as allergen.
When an allergen is introduced into the body, the immune system views it as an intruder that is capable of destroying various tissues and cells. It therefore manufactures antibodies to fight off the intruders thereby resulting in an allergic reaction.
Medications such as antibiotics can cause allergic reactions such as itching and swelling of the skin.
