Examlex
What is the definition of theory as used in science? How is the word misused in day-to-day language?
Oxygen
A chemical element with symbol O, essential for aerobic respiration in living organisms and a key component of the Earth's atmosphere.
Vitamin
One of a group of organic substances present in minute amounts in natural foodstuffs that are essential to normal metabolism; insufficient amounts in the diet may cause deficiency diseases.
Catabolism
The breakdown of complex molecules in living organisms to form simpler ones, together with the release of energy; destructive metabolism.
Chemical Structure
The arrangement of atoms in a molecule or compound and how they are bonded together, influencing the substance's properties and behavior.
Q2: Lung-fish are important in the fossil record
Q10: The process of assimilation results in the
Q11: What are the three types of radioactive
Q20: During the entire Paleozoic, the western margin
Q21: Glacial till is:<br>A) any sediment deposited as
Q48: To determine the radiometric age of a
Q55: Completion <br>Different isotopes of the same element
Q71: Soils that are a result of intense
Q77: Why is Crater Lake in Oregon considered
Q82: Briefly explain the process of differential weathering.