Through what structure do epiblast cells migrate to form the mesoderm?
A. Hypoblast
B. Lacunae
C. Chorionic villi
D. Blastocele
E. Primitive streak
Answer: E
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Amylase is an enzyme that promotes the breakdown of starches during digestion. Which of the following describes the method by which amylase functions?
A. It catalyzes starch breakdown without being changed or depleted. B. It changes its composition in order to break starch down itself. C. It functions as a hormone that signals for starch breakdown to begin. D. It inhibits chemical reactions by being changed or depleted by the starch.
Which layer of protective connective tissue is the outermost covering surrounding a spinal nerve?
a) dura mater b) pia mater c) endoneurium d) perineurium e) epineurium
Which of the following statements regarding higher brain functions is true?
A. A person with damage only to Wernicke's area of the brain will lose the ability to recognize faces. B. Both "a person with damage only to Broca's area of the brain will understand spoken or written speech but will have difficulty speaking" and "a person with damage only to Wernicke's area of the brain will have motor aphasia" are true. C. A person with damage only to Broca's area of the brain will understand spoken or written speech but will have difficulty speaking. D. A person with damage only to Wernicke's area of the brain will have motor aphasia. E. Both "a person with damage only to Broca's area of the brain will understand spoken or written speech but will have difficulty speaking" and "a person with damage only to Wernicke's area of the brain will lose the ability to recognize faces" are true.
According to the sliding filament theory for skeletal muscle contraction, a shortening of the sarcomere is produced by...
What will be an ideal response?