How does the nervous system of cnidarians and arthropods differ?

What will be an ideal response?


Cnidarians have a nerve net, which threads through two tissue layers and coordinates responses to
stimuli. However, there is no central control organ or brain. Arthropods have a highly organized
central nervous system, which coordinates responses through three tissue layers.

Biology & Microbiology

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Which type of phosphorylation does not require a membrane?

A. Substrate-level phosphorylation B. Oxidative phosphorylation C. Photophosphorylation D. All types of phosphorylation require a membrane.

Biology & Microbiology

Where do correlation, association, and learning occur in the brain?  

A.  cerebellum B.  corpus callosum C.  medulla D.  cerebrum E.  pons

Biology & Microbiology

Which of the following illustrates viviparity?

a. A mare gives birth to a live colt b. A snake lays an egg right before it hatches c. A chicken lays an undeveloped egg d. A frog’s eggs are fertilized outside the body

Biology & Microbiology

The left hemisphere of the brain is responsible for

a. music. b. artistic ability. c. spatial relationships. d. language skills. e. abstract abilities.

Biology & Microbiology