Cells/Plants
In eukaryotic cells, what organelle houses the DNA?
Nucleus
According to the law of conservation of energy, energy can neither be what nor what?
Created nor destroyed
What device on an automobile lessons vehicle emissions and engine noise?
Muffler
Which four-word phrase does Darwin use in his 5th edition of The Origin, to imply that organisms that adapt best to their environment will continue to exist, while others who don't adapt will become extinct?
Survival of the Fittest
What is the name for fast-running ground cuckoos with long tails and crests, one of which, in cartoons, is chased by a hungry coyote?
Roadrunner
What human body systemhas accessory organs that include the salivary glands, liver, gall bladder, and pancreas?
What gas is required as a reaction in the process of photosynthesis?
Carbon Dioxide
What naturally occuring phenomenon is caused by sunlight being reflected from water vapor in the atmosphere?
Rainbow
What is the sicentific name for the shoulder blade?
Scapula
What is the name of a female sheep?
Ewe
What is the name of the photoreceptor cells in the retina that allows us to see color?
Cones
What state of matter has a definite volume, but an indefinite shape?
Liquid
What word, when added as prefix or suffix to a cloud name, means that precipitation is falling from the cloud?
Nimbus
What is the biological name for the process where some animals shed old skin or other parts to make way for new growth?
Molting
What kind of metal poisoning is known as plumbism?
Lead
What is the name of the fabric made from the fibers of the flax, or linseed, plant?
Linen
What type of energy has a dual nature, meaning that it possesses both particle and wave properties?
Light
What is the name for a hypothetical machine that can do work infinitely without an external energy source?
Perpetual motion
Name the man who was origanally an artist but became an engineer and, in 1807, built the first steam -powered boat.
Robert Fulton
What is the name of the safety channel that prevents a dam from overflowing?
Spillway
What plant in the mint family triggers a euphoric reaction in felines?
Catnip
What is the name of the most abundant chemical element in the universe?
Hydrogen
What is defined as a location where scientists use telescopes and / or other scientific equipment to study natural phenomena in the sky, ocean, or on Earth?
Observatory
In electricity, what is the passive component that transfers electrical energy from one AC circuit to one or more other circuits, either increasing or reducing the voltage?
Transformer
During what time of the year do residents living in North America receive the least amount of daylight?
December