Exam 3: Animal Architecture

Heart muscle is a type of nonstriated muscle.

The simplest animals are at the cellular grade of organization.

The contractile elements within a muscle fiber are _____________________.

Connective tissue,such as blood,consists of red and white blood cells and watery ground substance.

Embryos that display radial cleavage also display mosaic development.

Which organism would express a true coelomate body plan?

Flatworms differ from nematodes (roundworms)by having

The term intracellular literally means _______________.

The early divergence of bilateral animals with coeloms resulted in two separate lineages known as

Large size

A coelom arising from pouches of the primitive gut or archeteron describes schizocoelous formation.

A large animal will have difficulty with respiration and digestion unless its body surface invaginates or it develops an internal transport system. Multiple Choice Questions

Fibrous protein found in connective tissue,and probably the most abundant protein in the animal kingdom,is _______________.

Simple columnar epithelial cells with microvilli are found

The study of tissues is called ____________.

A coelom in a segmented worm also serves as a hydrostatic skeleton.

Similar cells grouped together to perform a common function is called _____________.

Compared to flatworms,annelids are more flexible,larger,and have more space for internal organs.

You discover a radial symmetrical animal in an early development stage.How would you determine if it is an echinoderm or cnidarian?

An organism with an acoelomate body plan and bilateral symmetry is the _____________.