Explore the Six Kingdoms of Life

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Questions and Answers

What is the second highest taxonomic rank in biology?

Kingdom

How many kingdoms are traditionally used in the system from the United States and Canada?

Six

What are kingdoms divided into?

Phyla

What term is used for life present in a particular region or time?

Flora, fauna, and funga Signup and view all the answers

Who introduced the rank-based system of nomenclature?

Carl Linnaeus Signup and view all the answers

What is the function of the nervous system in animals?

The nervous system coordinates actions and sensory information by transmitting signals to and from different parts of the body. Signup and view all the answers

What are the two main parts of the vertebrate nervous system?

The two main parts of the vertebrate nervous system are the central nervous system (CNS) and the peripheral nervous system (PNS). Signup and view all the answers

When did nervous tissue first arise in organisms?

Nervous tissue first arose in wormlike organisms about 550 to 600 million years ago. Signup and view all the answers

What does the peripheral nervous system (PNS) mainly consist of?

The PNS mainly consists of nerves, which are enclosed bundles of long fibers or axons, that connect the CNS to every other part of the body. Signup and view all the answers

What are the two types of nerves in the nervous system and their functions?

Nerves that transmit signals from the brain are called motor nerves or efferent nerves, while those nerves that transmit information from the body to the CNS are called sensory nerves or afferent. Spinal nerves are mixed nerves that serve both functions. Signup and view all the answers