what makes an organism an animal

Question

abhisar · Answer

There are few features which make an organism or classifies an organism as an animal.

$\bullet$ Animals are multicellular
$\bullet$ Animal cells lack cell wall
$\bullet$ Animal cells have organelles like lysosomes.

syedmohammed98 · Answer

1) Organisms having MASS TRANSPORT SYSTEM are animals
2) Organisms  storing glucagon ( stored energy)  instead of starch are animals
3) Organisms having a backbone are also considered animals

abhisar · Answer

Umm, plants do have transportation system...

syedmohammed98 · Answer

its MASS TRANSPORT SYSTEM which involves a pumpimg organ (heart) a network of blood vessels (arteries,veins and capillaries) and a transport medium (blood) :)

syedmohammed98 · Answer

thats pumping...srry

abhisar · Answer

Hmm..then how will you classify Porifera (sponges) as animals. Also, all animals don't have backbone. It's only true for chordates.

syedmohammed98 · Answer

i didnt said the word ONLY in the third point... oh and yeh i will consult my teacher about Porifera....well thnx for the information ..really helpful :)

anonymous · Answer

Thanks guys :)

syedmohammed98 · Answer

ur welcome