A 30 kg child sits on the right end of a see-saw 1 m from the axis. If a 20 kg child sits on the left end of the see-saw 2 m from the axis, what will happen?
A. the see-saw will tilt to the right
B. the see-saw will tilt to the left
C. the see-saw will balance
D. need more information to predict outcome
B. the see-saw will tilt to the left
You might also like to view...
Glands that have branched ducts and secretory cells that form sacs at one end of the ducts are classified as ___________ glands.
A. areolar B. simple acinar C. simple coiled tubular D. compound acinar E. compound tubuloacinar
A corpus callosotomy is a procedure in which the corpus callosum is cut to decrease the severity of certain types of seizures. After the procedure, some patients have extreme difficulty performing actions related to the non-dominant hemisphere, like using their non-dominant hand. What might be the basis for this side effect?
A. The corpus callosum separates the two hemispheres. Cutting the structure allows the dominant hemisphere to interfere with the motor control within the non-dominant hemisphere. B. The corpus callosum handles some somatic motor neurons. Cutting the structure will stop motor function signals from one hemisphere. C. The corpus callosum contains neurons that cross from one hemisphere to the other. Cutting the structure prevents the dominant hemisphere from controlling motor function in the non-dominant hemisphere. D. The corpus callosum is the seat of control for fine motor function and positioning. Cutting the structure will prevent the onset of seizures, but also hinders fine motor function and causes confusion about where a body part is at any given time.
What is the volume of air that can be forcibly expired after expiration of the tidal volume?
A. residual volume B. inspiratory reserve volume C. vital capacity D. expiratory reserve volume
Aromatase ___________.
A) enhances one's response to all signals. B) makes one more sensitive to the smell of others. C) is an enzyme that converts androgens to estrogens. D) is an enzyme that inactivates sexual signals after they are smelled.