Question:

Both male and female pigeons secrete milk through

Updated On: Mar 20, 2024
  • salivary glands
  • modified sweat glands
  • crop
  • gizzard.
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The Correct Option is C

Solution and Explanation

Pigeons are noted for their unique ability to ! produce 'pigeon's milk', a soft, cheesy and nourishing secretion, especially during the breeding season. It is i formed by the degeneration of the epithelial cells lining the crop. It is regurgitated into the mouth of the young j birds until they are old enough to manage a grain-diet ; like their parents. The pigeon's milk includes water, fat, I protein (casein) and lactose. The milk is produced by both sexes and contains 35 per cent of fat.
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Concepts Used:

Animal Kingdom

Animals are eukaryotic, multicellular species that belong to the Kingdom Animalia. Every animal has a distinct characteristic. They get energy either by feeding on plants or on other animals. There are millions of species that have been recognized, few shares similar characteristics while others vary drastically.

Kingdom Animalia comprises all animals. In the midst of the five kingdoms, the largest kingdom is the animal kingdom. Animals are multicellular eukaryotes. Though, like plants, they do not possess chlorophyll or a cell wall. Therefore, members of the animal kingdom indicate a heterotrophic mode of nutrition. Kingdom Animalia is further classified into ten different subphyla based on their body designs or differentiations.

The different phyla of the Kingdom Animalia are as follows:

  1. Porifera
  2. Coelenterata (Cnidaria)
  3. Platyhelminthes
  4. Nematoda
  5. Annelida
  6. Arthropoda
  7. Mollusca
  8. Echinodermata
  9. Hemichordata
  10. Chordata

Read More: Classification of Animal Kingdom