Question

which of the following is an invertibrate
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Answer 1

Answer:

Organisms which don't have backbone is called Invertibrates.

Eg: Snake, lizard,crocodile

Explanation:

Answer 2

$\mathtt{\bf{\large{\underline {\red{♡Invertebrates :-}}}}}$

➼ More than 90 percent of all living animal species are invertebrates.

➼ Invertebrates are the organisms without an internal skeletal system.

➼ Invertebrates live on land, in the sea, and in water bodies such as lakes and rivers.

➼ The phylum porifera, coelenterate, platyhelminthes, Nematoda, Annelida, Arthropoda, Molluscs an Echinodermata are grouped under invertebrates.

➼ They do not have a back bone.

➼ Their heart is present on the dorsal side of the body.

➼ In their body, spinal cord is ventral.

➼ If hemoglobin is present in their body, it is dissolved.

➼ Examples of invertebrates :- insects, arachnids, crustaceans, and myriapods, mollusks, chitons, snail, bivalves, squids, octopuses, earthworms and leeches), hydras, jellyfishes, sea anemones, and corals.