Both first- and second-class levers operate at a mechanical disadvantage
Indicate whether the statement is true or false
FALSE
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The ends of long bones are called the:
a. diaphysis b. epiphysis c. periosteum d. endosteum
The thick filaments in a sarcomere contain cross bridges
Indicate whether the statement is true or false
Until recently, acquired immunity was thought to only occur in jawed vertebrates. Which of the following observations suggest that this is NOT the case?
a. Phenoloxidase activity enables hemocytes to form an impermeable wall of melanin around an infecting pathogen. b. Invertebrate immune cells secrete an IL-1 like compound. c. Invertebrates produce lectins, which coat bacterial cells, priming them for phagocytosis. d. Copepods become resistant to tapeworms after an initial exposure. e. None of these.
Christine has the ability to evaluate several options and pick the best one to solve a problem. The reasoning ability that Christine has is called ________.
Fill in the blank(s) with correct word.