The tissues of Cnidarians are termed _____________ because they are derived from two embryonic body layers
Fill in the blank with the correct word.
Answer: diploblastic
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Answer the following statement(s) true (T) or false (F)
1. Locomotion is a function of the spinal cord. 2. Ascending signals in the spinal cord travel via gray matter, while descending signals travel via white matter. 3. The cervical and lumbar enlargements are wide points in the spinal cord marking the emergence of motor nerves. 4. Nerve fibers in a given white matter tract are similar in origin, destination, and function. 5. Voluntary motor signals typically begin in an upper motor neuron in the thalamus.
The highest level of motor control involves the basal nuclei and the ________
Fill in the blanks with correct word
Which of the following would result from a reduced function of the Na+ channels in the SA node?
A. The heart rate would decrease. B. Depolarization would be delayed. C. Depolarization would be delayed, and the heart rate would decrease. D. The plateau phase would be shorter. E. Repolarization would not occur.
A recent study demonstrated that there are three unique strains of Propionibacterium acnes; two strains are more prevalent in people with acne; however, one of which appears not to be pathogenic to humans and is more prevalent in people with 'clear' skin. Additionally, the strain of P. acnes found in healthy skin kills invading bacteria, including the pathogenic P. acnes. Which of the following statements about the targeted removal of 'bad' P. acnes and addition of 'good' P. acnes is INCORRECT?
A. Once removed, the invading pathogenic P. acnes cannot regrow on the skin. B. After "bad" P. acnes is removed, the applications of "good" P. acnes should be able to grow and kill invasive bacteria.