Tell 5 prop. of Animals?
why division of labour is seen in multicellular?
as many cells are present, so it shows division of labour
organisms can be classified into how many types name them? give there examples
unicellular = amoeba and paramecium
multicellular = hydra
name all the stages that are formed before GASTRULA is sequence.? also tell how many germ layers are present in
Sperm + Ova → Zygote (Single cell)
→ 2-celled stage
→ 4-celled stage
→ 8-celled stage
→ 16-celled stage
→ 32-celled stage (Blastula)
→ Gastrula
Gastrula forms the 3 germ layers:
- Ectoderm
- Mesoderm
- Endoderm
These germ layers form various tissues in the body.
name the 4 tissues and also tell the basis of classifying them?
on the basis of structure and function of cell there are 4 types of tissue