CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -In contrast, invertebrates are animals that do not have backbones. Invertebrates can have a skeleton outside their bodies called an exoskeleton, while some invertebrates have no skeleton at all! In fact, the majority of animals on Earth are invertebrates.

Detailed explanation-2: -Spiders, crustaceans (crabs, lobsters, and shrimps), and insects have exoskeletons made up of sections with jointed legs. These animals are part of a group of invertebrates called arthropods, meaning “jointed legs.” Some mollusks, such as snails and clams, have a hard shell that they can hide in when danger threatens.

Detailed explanation-3: -An invertebrate is a cold-blooded animal with no backbone. Invertebrates can live on land-like insects, spiders, and worms-or in water. Marine invertebrates include crustaceans (such as crabs and lobsters), mollusks (such as squids and clams), and coral.

Detailed explanation-4: -Some invertebrates have exoskeletons while others do not. However, no vertebrates have exoskeletons. Basically, exoskeletons are only found on the bodies of species belonging to the phylum Arthropoda.

Detailed explanation-5: -The hard part which is the internal support of the structure is called an endoskeleton. It is developed from endoderm and is called a living structure. Some examples of endoskeleton are cartilage, bone, etc. The hard part present outside the body which protects the soft tissues and muscles is called the exoskeleton.