Plankton shells in marine sediments and glacial ice can both be used to determine past __________ because of their __________.

When testing for thyroid function, the laboratory test most often ordered is ____________ and when actual thyroid home (T3, T4) are requested (unless the physician orders otherwise), the ______________ form of them is quantified.

Mid-latitude cyclones play a large part in __________ temperature differences between __________.

Why are the two sides of the Moon different with respect to light and darkness?

List three indicators of hydrology in a riparian zone when standing water is not present.

The sperm produced from a species of moss contain 10 chromosomes. How many chromosomes are found in cells of the gametophyte of this moss?

 Due to the high heat capacity of water, lakes can provide moisture and heat to cold winter air. This phenomenon is most likely to result in 

An 8-year-old presents with her mother who explains her child has had pain in her abdomen over the past 2 – 3 months. She mentions it at least once a week and the pain has kept her from attending her favorite dance class. She has not had a fever nor any bowel changes. Without knowing more, what would you believe to most likely be the issue?

You want to determine the sinuosity of a river.  You find that the valley length is 5 miles and the channel length is 15 miles.  What is the sinuosity of the river?

The rainbow seen after a shower is an example of a(n) __________ spectrum.