Biology
What is the most abundant protein in the human body?
Collagen
What is the pH of a neutral solution at 25°C?
7
What is the unit of measure for force?
Newton (N)
What is the term for the variety of life forms in an ecosystem?
Biodiversity
Which element is found in diamonds?
What is the term for the programmed cell death that occurs as a normal part of an organism's growth and development?
Apoptosis
What is the term for the amount of energy required to remove one mole of electrons from one mole of atoms in the gaseous state?
Ionization energy
What principle explains why a boat floats on water?
Archimedes' principle
What is the main gas responsible for the greenhouse effect?
Carbon dioxide (CO₂)
What is the tallest mountain in the solar system, and on which planet is it located?
Olympus Mons on Mars
Which organelle is responsible for synthesizing lipids and detoxifying chemicals within the cell?
Smooth Endoplasmic Reticulum
What is the molecular geometry of a molecule with 4 bonding pairs and 1 lone pair around the central atom?
Seesaw
Which law states that the pressure of a gas is inversely proportional to its volume when temperature is constant?
Boyle's Law
Which process in the nitrogen cycle converts nitrogen gas from the atmosphere into a form usable by plants?
Nitrogen fixation
Which scientist is known for his theory of general relativity?
Albert Einstein
In which phase of meiosis do homologous chromosomes undergo crossing over?
Prophase I
Which element has the highest electronegativity?
Fluorine
What phenomenon occurs when a wave changes direction as it passes through an opening or around an obstacle?
Diffraction
What is the term for species that are native to a specific location and found nowhere else on Earth?
Endemic species
What is the hardest naturally occurring substance on Earth?
Diamond
What is the name of the process by which bacteria incorporate foreign DNA from their surroundings?
Transformation
In which type of reaction do two substances combine to form a single product?
Synthesis Reaction
What is the name of the effect that causes the frequency of a wave to change for an observer moving relative to the source of the wave?
Doppler effect
What law explains the energy loss as energy is transferred up trophic levels in an ecosystem?
The Second Law of Thermodynamics
In which year was the first email ever sent?
1971