CBSE Class 9 Answered
1. why are bryophyta called amphibians of the plant kingdom?
2. what is the meaning of gut?
3. what are mucus glands?
Asked by badesraajay | 26 Jan, 2016, 02:09: PM
Expert Answer
1. Bryophytes are so called because being an amphibian they can survive well in both land and water and need water for sexual reproduction.
2. The gut (gastrointestinal tract) is the long tube that starts at the mouth and ends at the back passage (anus).Also known as digestive system of humans.
3. A gland that secretes mucous is called mucous gland. A major function of this mucus is to protect against infectious agents such as fungi, bacteria and viruses. Example- Brunner's glands, esophageal glands
Answered by Sivanand Patnaik | 24 Nov, 2017, 08:23: AM
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