Answer: Mucosa: sub mucosa : adventitia
Explanation:
Respiratory tract is a part of respiratory system that helps in the process of respiration.
The respiratory tract is lined with different layers of wall. Moving from the inside to outside of the respiratory tract the layers are mucosa; sub mucosa and the outermost wall is adventitia.
These layers helps in protecting the respiratory system from any kind of damage and kills the harmful pathogen that tries to enter the tract.
Answer:
Gynoecium
Explanation:
The male organ of a flower is called stamen. It helps in making male gametes of the plant and is present in pollen grains. The female organ of a flower is called carpel. It helps in making female gametes or egg cells of the plant and is present in ovules.
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-Medulla in a human is smaller (medullary index of less than one-third); and medulla in animals is very thick (medullary index of one-half or greater).
- Cuticle in humans is imbricated; and the cuticle in animals is coronal or spinous.
- Pigmentation in animal hair is denser than human hair.
- Animal hair can change colors in banded patterns; human hair cannot.
