After menopause, about 50 percent of women experience lower vocal tones, more throat dryness and the need to clear their throats more often. Of the following, which is the most likely hypothesis to explain this phenomenona. Since sex steroids play a role in size of the larynx and vocal cords, the lack of estrogen causes the vocal cords to become dry and mucus coats the vocal cords in an effort to lubricate them, resulting in lowered vocal tones.
b. Vocal cords are dependent upon air passing through the larynx to vibrate the vocal cords. As women age, their breathing becomes labored and heavy. Therefore the vibrations are not as fast and cause a lowering in tone levels.
c. As vocal cords of women age, they lose chondroitin and can no longer stretch or vibrate as efficiently as they did before menopause, resulting in lowered tone levels.
d. Since sex steroids play a role in size of the larynx and vocal cords, in postmenopausal women, the lack of estrogen allows the vocal cords to become thicker and longer, like that of males, thus having a similar effect as testosterone on vocal tone.

Carissa, age 14, having trouble keeping up with all her assignments and when they are due. in addition to that, she struggles to balance school work, chores at home, social life, and playing volleyball. question 1 options: underdeveloped frontal lobe underdeveloped amygdala underdeveloped cerebellum underdeveloped corpus callosum question 2 (5 points) teens are not as adept at interpreting facial expressions and emotions as adults. what is the reason for this? question 2 options: teens use the frontal lobe more than adults which interferes with the use of the other areas of the brain like the amygdala. teens use the amygdala and adults use the frontal lobe to differentiate between similar facial expressions and emotions. adults have a thicker corpus callosum than teens which allows them to use both sides of their brain more efficiently. the lymbic regions of the brain are used more in adulthood than adolescence. question 3 (5 points) the human brain's development is like pruning a tree. as one grows older the unused connections in the brain are removed to make room for new growth. question 3 options: true false question 4 (5 points) michael, age 16, driving his car fast down a curvy road without his headlights on. question 4 options: underdeveloped amygdala underdeveloped cerebellum underdeveloped frontal lobe underdeveloped corpus callosum

Which of the following statements is true about body composition? a. body composition is the percentage of fat to lean body mass. b. body composition is a measure of one's body weight. c. body composition is a measure of one's essential body fat. d. body composition is not a good indicator of overall health. select the best answer from the choices provided. a

Checklists and rating scales can be used to monitor children’s developmental progress and to diagnose developmental delays. true false