The greenhouse gas presently at highest concentration in the Earth’s atmosphere is methane
___________________ Indicate whether the statement is true or false.
F, carbon dioxide
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ACTH stands for adrenocorticotropic hormone, but it is produced in the anterior pituitary. What is the basis of this name?
A. It is expressed most highly in tropical climates. B. It stimulates the adrenal cortex. C. It signals to the kidneys to reabsorb water. D. It stimulates appetite by acting on the cerebral cortex.
Which function of the skeletal system requires the leg bones to be extremely strong?
A. They store minerals and fat. B. They support the entire body. C. They protect soft body parts. D. They permit flexible body movement. E. They produce blood cells.
Since meningitis is caused solely by bacterial infections, antibiotic treatment is appropriate in all cases.
Answer the following statement true (T) or false (F)
Which of the following traits is unique to arthropods?
a. Appendages b. Segmentation c. A ventral nerve cord d. A dorsal anterior brain e. An exoskeleton