Kingdom Animalia

Front

Organ level of organisation appeared for the first time in

Back

Platyhelminthes

Front

Mesoderm is formed as scattered pouches between the ectoderm and endoderm. Such organisms are called as

Back

Pseudocoelomate

Front

An example of _____________ symmetry.

Back

Biradial symmetry

Front

An example of

Back

Open circulatory system

Front

An example of _________ digestive system.

Back

Incomplete

Front

What is the primary characteristic of Kingdom Animalia?

Back

Multicellular, eukaryotic organisms that are heterotrophic.

Front

Define Acoelomate organisms.

Back

Organisms that lack a coelom, or body cavity, between the digestive tract and the outer body wall.

Front

What is the significance of the mesoderm in animal development?

Back

It gives rise to muscles, circulatory system, and other organs.

Front

What type of symmetry do most animals exhibit?

Back

Bilateral symmetry.

Front

What is a closed circulatory system?

Back

A system where blood is contained within vessels.