Biology
This is the process by which populations of organisms change over generations through variations and adaptations.
What is evolution?
This element, often used in thermometers, has the chemical symbol Hg and is liquid at room temperature.
What is mercury?
What is gravity?
This term describes a group of individuals of the same species living in a specific area at the same time.
What is a population?
These tiny marine organisms produce about 50% of the Earth’s oxygen supply.
What are phytoplankton?
This cellular process, often called “cellular eating,” allows cells to engulf large particles or other cells.
What is phagocytosis?
This term describes the heat energy required to raise the temperature of one mole of a substance by one degree Celsius.
What is molar heat capacity?
This principle states that the buoyant force acting on an object submerged in a fluid is equal to the weight of the fluid that the object displaces, formulated by an ancient scientist.
What is Archimedes’ principle?
This term refers to a species introduced to a new habitat that often outcompetes native species and disrupts local ecosystems.
What is an invasive species?
This body part is the only one in humans that can regenerate completely if part of it is removed.
What is the liver?
This term describes the observable characteristics of an organism.
What is a phenotype?
This term refers to a reaction where an atom or ion in a compound is replaced by an atom or ion of another element.
What is a substitution reaction?
This phenomenon occurs when the frequency of a wave changes due to the motion of the source or the observer, often associated with sound waves.
What is the Doppler effect?
This process, carried out by certain bacteria, converts nitrogen gas (N₂) from the atmosphere into ammonia (NH₃) in the nitrogen cycle.
This species of whale is known for its incredible singing abilities, producing complex vocalizations that can be heard for miles.
What is the humpback whale?
This is a plant hormone that is primarily responsible for promoting cell elongation and is often associated with plants growing "towards" sunlight.
What is auxin?
This law states that the pressure of a gas is directly proportional to its temperature when the volume is held constant.
What is Gay-Lussac’s Law?
This type of interaction occurs between molecules due to transient polarisation and is generally weaker than covalent and ionic bonds, often observed in gases and liquids.
What are van der Waals forces?
This is the process where pollutants become more concentrated as they move up through trophic levels in a food chain.
What is biomagnification?
This animal has the largest brain relative to its body size of any animal on Earth.
What is an ant?
During protein synthesis, this sequence of three nucleotides on mRNA pairs with a complementary tRNA to ensure that the correct amino acid is added to the growing peptide chain.
What is a codon?
This principle states that no two electrons in an atom can have the same set of four quantum numbers, helping to explain the arrangement of electrons in orbitals.
What is the Pauli exclusion principle?
This type of scattering occurs when light or other waves interact with particles much smaller than the wavelength of the light, explaining why the sky is blue.
What is Rayleigh scattering?
This term describes the evolutionary process by which organisms not closely related independently evolve similar traits due to similar environmental pressures.
What is convergent evolution?
This effect causes cyclones to rotate in the opposite direction (clockwise) to that of hurricanes and typhoons (counter-clockwise).
What is the Coriolis effect?