Characteristics of kingdom animalia

Characteristics of members of kingdom Animalia are:

They are multicellular organisms which do not possess chlorophyll.

They are eukaryotic organisms.

Cell wall is absent.

Mode of nutrition is heterotrophic i.e. they depend on other organisms for food.

They have muscle cells due to which they have the capability to contract and relax the body parts.

Reproduction is sexual. However, asexual reproduction is also found in lower forms.

During development, multicellular embryo is formed from the zygote.

They require oxygen for aerobic respiration.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus.

this is so because calcium carbonate is the main component in the shells. calcium carbonate is strengthened by phosphorus.

explanation:

answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

explanation: