What is the origin of a warm, wet air mass? a. over land in tropical areas
b. over water in tropical zones
c. over land in polar regions
d. over water in polar regions

This is science by the way with clouds.

What can be found in every skeletal muscle? a. nerves, bones, cartilage, and connective tissue b. tendons, cartilage, nerves, and blood vessels c. muscle fibers, nerves, connective tissue, and blood vessels d. tendons, nerves, blood vessels, and bones

(drag each tile to the correct location.) categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. - a tentative statement used to guide scientific investigations. - makes predictions about future events. - can be tested by many independent researchers. - based on observations of natural phenomena. - a well-established, highly reliable explanation.

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.