Front

What is the scientific name of the American lobster?

Back

Homarus americanus

Front

Which organism is most closely related to the American lobster?

Back

Common lobster (Homarus gammarus)

Front

What is a common ancestor in evolutionary biology?

Back

The most recent species from which two or more different species have evolved.

Front

What trait separates sharks from ray-finned fish?

Back

Bony skeleton

Front

What domain do all animals belong to?

Back

Eukarya

Front

What is a virus?

Back

A virus is a microscopic infectious agent that has no cells.

Front

What is the primary characteristic of the domain Eukarya?

Back

Organisms in this domain have complex cells with a nucleus.

Front

What is the difference between unicellular and multicellular organisms?

Back

Unicellular organisms consist of a single cell, while multicellular organisms are made up of multiple cells.

Front

What are vertebrates?

Back

Animals that have a backbone or spinal column.

Front

What is the significance of a bony skeleton in fish?

Back

It provides structure and support, allowing for more complex movements.