__________ are jawless fishes with a backbone. Fill in the blank(s) with the appropriate word(s)


Lampreys

Biology & Microbiology

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True or false:

_____ The nervous systems of all animals are organized into peripheral and central components. _____ The PNS consists only of sensory neurons. _____ All neurons have either a sensory or motor function. _____ All neuronal cell bodies are either in the brain or spinal cord. _____ All nervous system responses involve input from the brain. _____ The organization of the human nervous system is completely different from that of other vertebrates. What will be an ideal response?

Biology & Microbiology

Four of the five answers listed below are components of the human respiratory system. Select the

exception. a. thoracic cavity b. trachea c. diaphragm d. spiracle e. larynx

Biology & Microbiology

There are ________ different olfactory receptor proteins in humans that allow us to sense a variety of odors

A) 5 to 10 B) 350 to 400 C) 10 to 15 D) 100,000 to 500,000 E) 1,000 to 1,500

Biology & Microbiology

HPV is a:

a) Single-stranded positive RNA virus b) Double-stranded DNA virus c) Double-stranded RNA virus d) Single-stranded negative RNA virus

Biology & Microbiology