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Biology CBSE Live product
Class 7 (2025-26)
Life processes in animals
Nutrition in animals: Nutrition in ruminants and birds
7.
Digestion in animals: Ruminants and birds
Question:
4
m.
Give the correct answer and justify it:
1.
If a bird mostly eats soft fruit, how would its gizzard adapt?
Reduce in size
Increase in size
Disappear
Increase in width
Over time, the gizzard may become smaller or less muscular without the need to grind hard food
Over time, the gizzard may become weaker or diasappear without the need to grind hard food
2.
A bird swallows a hard seed whole. Explain what happens as the seed moves through its digestive system.
Storage-Grinding-Softening-Absorption
Grinding-Softening-Storage-Absorption
Storage-Digestion-Egestion-Absorption
Storage-Softening-Grinding-Absorption
Softened by digestive juices in stomach, mechanically digested in gizzard, temporarily stored in crop and absorbed in intestine
Temporarily stored in crop, softened by digestive juices in stomach, mechanically digested in gizzard and absorbed in intestine
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