Class IV -Animals and their young ones

6,307 views
5,396 views

Published on

Summary of chapter -Animals and their young ones of class IV , CBSE,www.learnroots.com

Published in: Education, Business, Technology
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
6,307
On SlideShare
0
From Embeds
0
Number of Embeds
125
Actions
Shares
0
Downloads
0
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Class IV -Animals and their young ones

  1. 1. Animals and their young ones www.reflectivelearn.com
  2. 2. Reproduction  Animals produce more of their own kind by either laying eggs or giving birth to young ones. This is called reproduction.  All birds reproduce by laying eggs.  The habit of sitting on their eggs by some parent animals to keep them warm is called incubation. www.reflectivelearn.com
  3. 3. Part of an egg  An egg has a thin protective shell called “Egg Shell“.  Within the egg shell is a white jelly like substance called the albumen, which is rich in proteins.  The yellow inner part of the egg is the yolk and it is rich in fats, vitamins and minerals.  The yolk contains food for the growing baby or the embryo.  The embryo develops into a chick. Parts Of an Eggwww.reflectivelearn.com
  4. 4. Life cycle  Various stages of development, from an embryo to a mature adult, is called the cycle of an animal. www.reflectivelearn.com
  5. 5. Life cycle of frog  A frog lays egg in large clusters called spawns.  A tadpole hatches out of the egg.  A tadpole undergo several changes such as – it grows legs and loses its tail before it becomes an adult. This process is called metamorphosis.  A complete change from a young form to adult is called metamorphosis. www.reflectivelearn.com
  6. 6. Life cycle of butterfly  An adult butterfly lay eggs.  The egg hatches into larva called caterpillar.  The caterpillar builds a cocoon around itself to form a pupa.  The pupa sheds its skin many times to become an adult butterfly. Process of shedding the old skin is called moulting www.reflectivelearn.com

×