The __________ secretes several hormones that stimulate the development of lymphatic organs and regulates development and activity of T cells (white blood cells).
A. thyroid
B. thymus
C. adrenal gland
D. spleen
E. parathyroid
B. thymus
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The plural of stimulus is:
A) stimulum B) stimulae C) stimula D) stimuli
The gap between the axon terminal of a motor neuron and the sarcolemma of a skeletal muscle cell is called the ________
A) motor unit B) sarcomere C) neuromuscular junction D) synaptic cleft E) cross bridge
Which of these statements about sexually transmitted infections is false?
A) Genital herpes is caused by a virus that may cause intermittent lesions. B) Chlamydia is caused by bacteria that can often be asymptomatic or bring on a wide variety of symptoms. C) Syphilis is caused by a virus that may lead to death if untreated. D) Gonorrhea is caused by a bacterium that can bring on painful discharges in males.
Is a scientific principle taken as absolutely true? Explain your answer
What will be an ideal response?