This swift African cat has claws that are not fully retractable, enabling it to grip the ground when running after prey.
What is a cheetah?
100
In 1892 Dimitri Ivanovski showed there were agents smaller than bacteria causing disease; we know them as these.
What are viruses?
100
The branch of this field studies mental disorders and deviance.
What is psychology?
100
Microcephaly is one of the birth defects related to this tropical virus that's becoming more prevalent.
What is Zika?
100
The 17-mile tunnel of the Large Hadron Collider (the largest particle accelerator) is on the border between France & this country.
What is Switzerland?
200
National Geographic calls it "the prickliest of rodents".
What is a porcupine?
200
By 1980 a global vaccination effort led to the virtual eradication of this.
What is smallpox?
200
**DAILY DOUBLE**
It's the scientific study of lawbreakers & their illegal acts.
What is criminology?
200
Soak this in: a minivan-sized one of these multicellular aquatic creatures was found off the coast of Hawaii.
What is a sponge?
200
The USA's oldest national laboratory is the one named for Ernest Lawrence at this university.
What is UC Berkeley?
300
** DAILY DOUBLE**
Two basic substances in snake venom are hemotoxins & these, a word for poisons that damage nerve tissue.
What are neurotoxins?
300
The government's "Centers for" these 2 words "& Prevention" dates back to 1946.
What is Disease Control?
300
Doctors who specialize in this field deal with matters of the heart, literally.
What is cardiology?
300
Using a multi-step process that isolates dolphins' sounds on specific objects, researchers have created a 3-D image that simulates how dolphins see a human using this process.
What is echolocation?
300
The marine iguana found on these islands is unique among modern lizards in that it forages in the sea.
What are the Galápagos Islands?
400
The 2-inch-long golden poison dart one of these has enough venom to kill 10 men.
What is a frog?
400
During WWII Ernst Chain & Howard Florey mass-produced this antibiotic only discovered a decade before.
What is penicillin?
400
This branch of medicine focuses on the preparation, uses & effects of drugs.
What is pharmacology?
400
During the Industrial Rev., peppered moths evolved from light to black due to this 4-letter carbon residue.
What is soot?
400
The American Museum of Natural History is located in this large city.
What is New York City?
500
This toothed whale has the largest brain of any animal & can dive to a depth of almost 2 miles.
What is the Sperm Whale?
500
Using handcrafted microscopes, he was the first person to observe and describe single celled organisms.
Who is Antonie van Leeuwenhoek?
500
The study of insects.
What is entomology?
500
During the Industrial Revolution, peppered moths evolved from light to black due to this 4-letter carbon residue.
What is nitrogen?
500
The first microscopic observation of protozoa & bacteria happened in the 1600s in this country.