Endocrine glands such as the adrenal glands secrete hormones directly into: (2 points)

synaptic gaps

the bloodstream

the limbic system

sensory neurons

interneurons

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

An electric power distributor charges residential customers $0.10 per kilowatt-hour (kwh). the company advertises that "green power" is available in 150 kwh blocks for an additional $4 per month. (green power is generated from solar, wind power, and methane sources.) if a certain customer uses an average of 391 kwh per month and commits to one monthly 150 kwh block of green power, what is her annual power bill

How is the ideal mechanical advantage of a wheel and axle calculated?