Genetics
What is DNA?
The genetic code and information that defines our qualities. The instructions for creating all the parts of different kinds of cells.
What is the first element on the periodic table?
Hydrogen
What is force measured in?
Newtons (N)
What does LUCA stand for?
Last Universal Common Ancestor
What is albedo?
The amount a surface reflects light
How many chromosomes do humans have?
46
What are the products of an acid + base reaction
Water and salt
How can you calculate force?
Force = Mass * Acceleration
What is the difference between absolute and relative dating?
Absolute dating provides an exact numerical figure (e.g. 36,000 years), whereas relative dating provides an order and comparison relative to other features being dated.
How many years ago did the big bang occur?
13.8 million years
Where does translation occur?
Ribosomes
When does a chemical bond form?
When there is an electrostatic attraction pulling atoms together (e.g. ionic, covalent)
What is displacement, and how can it be calculated?
The distance from the starting position. Displacement = Velocity / Time
Displacement = Final position - Initial position
What is an ancestral species?
An older species from which one or more recent species have evolved
How can we tell that the universe is expanding?
Through redshift (light stretched, shifting to a more red hue) and cosmic background radiation
What occurs in Prophase I, which is also genetic recombination?
Crossing over
What is a Bohr diagram?
A diagram showing the electron configuration of an atom
If a bike weighing 10kg is at rest on the ground, what is the normal force?
98N
What is comparative anatomy?
The study of similar anatomical structures in different species in order to understand their evolution
What type of ocean circulation is driven by temperature and salinity (density)?
Thermohaline circulation
What does an autosomal recessive pattern mean?
Two unaffected parents can have an affected child.
What are the products of Calcium Chloride and Sodium Carbonate
Calcium Carbonate and Sodium Chloride
What are the four main forces acting on an aeroplane when in the air?
Thrust (forwards), Drag (backwards), Lift (upwards), Weight (downwards)
During the Industrial Revolution in England, soot darkened tree bark, acted as a selective pressure from bird predation from dark-coloured peppered moth. What does this do?
This favored the dark-coloured peppered moth over the light-colored variety, causing the population to shift dramatically toward the darker morph.
What are the three atmospheric circulation cells?
Polar cells, Ferrel cells, Hadley cells