The color of the sky at sunset is caused by the fact that insolation must travel through more atmosphere resulting in a greater amount of scattering.

Infrared EMR is what causes sunburns in humans.

The presence of cloud coverage will result in warmer than normal daytime temperatures and cooler than normal nighttime temperatures.

Alternative versions of a particular gene are known as _____.

ADH or vasopressin controls the retention of fluid, while aldosterone controls the retention of sodium.

Antidiuretic hormone (ADH) is released in response to _____.

Compared with carrying out a simple movement like foot tapping, performing precise and complicated movements requires greater use of the _____.

Animals in cold climates have typically have _____.

In response to stimulation by αMSH and cocaine-and-amphetamine-regulated transcript (CART), the pituitary gland releases _____.

A muscle relaxes after contracting when _____.