Which statement concerning gravity detection in humans is true?
a. Statoliths are pulled down by gravity, stimulating hair cells of the statocysts.
b. Otoliths are pulled down by gravity onto stereocilia, stimulating nerve impulses.
c. Gravity moves the cupula, causing hair cells of the lateral line organs to bend.
d. Gravity pulls on the hair cells of the basilar membrane, stimulating nerve impulses.
e. Gravity moves perilymph over the hair cells of the tectorial membrane
B
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Which of the following accurately describes the sequence of tissues from the pith outward to the cork in a woody stem?
a. Secondary xylem, primary xylem, vascular cambium, cortex, primary phloem, secondary phloem, and cork cambium b. Primary xylem, secondary xylem, vascular cambium, secondary phloem, primary phloem, cortex, and cork cambium c. Primary xylem, secondary xylem, secondary phloem, primary phloem, cork cambium, cortex, and vascular cambium d. Primary xylem, secondary xylem, vascular cambium, primary phloem, secondary phloem, cortex, and cork cambium e. Cortex, secondary xylem, primary xylem, vascular cambium, primary phloem, secondary phloem, and cork cambium
Which of the following is not characteristic of cancer cells?
(a) cancer cells often undergo angiogenesis (b) cancer cells tend to be nonspecialized (c) cancer cells undergo apoptosis (d) cancer cells often have abnormal nuclei (e) cancer cells can metastasize
occurs in adults, obesity is risk factor
What will be an ideal response?
What oxidizing agent is used to temporarily store high energy electrons harvested from glucose molecules in a series of gradual steps in the cytoplasm?
A. ADP B. FADH2 C. NAD+ D. oxygen