Human Biology & Health
These vessels carry blood away from the heart.
What are arteries?
This founder of psychoanalysis proposed the idea of the id, ego, and superego.
Who is Sigmund Freud?
Mammals are unique among animals because they produce this to feed their young.
What is milk?
A beam supported at one end and free at the other is called this.
What is a cantilever?
This process uses a cutting tool to remove material from a workpiece.
What is machining?
The pancreas releases this hormone to lower blood glucose levels.
What is insulin?
This brain structure is heavily involved in forming new long-term memories.
What is the hippocampus?
The total number of different species living in an ecosystem measures this.
What is biodiversity?
The property of a structure that allows it to regain its original shape after deformation.
What is elasticity?
The efficiency of a heat engine is limited by these two temperature reservoirs.
What are the hot and cold reservoirs?
This part of the brain coordinates balance and motor control
What is the cerebellum?
Short-term memory typically holds about this many pieces of information.
What is (six) seven (plus or minus two)?
The avian respiratory system uses these sacs to achieve continuous airflow.
What are air sacs
The measure of a material’s stiffness in the elastic region.
What is Young’s modulus?
When a material permanently deforms under a constant load over time, it’s said to undergo this.
What is creep?
The respiratory system exchanges this gas for carbon dioxide in the lungs.
What is oxygen
In Pavlov’s famous experiment, dogs learned to salivate at a bell. This is known as this type of conditioning.
What is classical conditioning?
The rumen of cattle contains these microorganisms that break down cellulose.
What are protozoa and bacteria?
The internal force per unit area acting within a material.
What is stress?
A metal’s resistance to deformation is measured as this property.
What is hardness?
In the human body, this protein forms the structure of hair, skin, and nails.
What is keratin (ketamine)
In cognitive psychology, this type of bias causes people to seek information that confirms their preexisting beliefs.
What is confirmation bias?
A keystone species is important because its removal causes this effect on an ecosystem.
What is ecosystem collapse (or trophic cascade)?
The relationship between stress and strain in the elastic region is described by this law.
→ What is Hooke’s law?
This lean manufacturing principle focuses on continuous improvement and eliminating waste.
What is Kaizen?