Biological Evolution
A characteristic/ trait that allows an species to survive better in a given environment
Adaptation
What is the movement of the earth around the Sun called?
Revolution
As mass increases, the pull of gravity _________ (increases or decreases)
increases
How many high tides and how many low tides are there per day?
2 of each
In an environment with light colored trees, which color variation of moth is the fittest - light or dark?
light
How long does it take the earth to complete one rotation?
1 day / 24 hours
As the distance between two objects increases, the pull of gravity ________ (increases or decreases)
decreases
Which has more of an effect on tides, the Sun or the Moon? Why? (answer both parts for full credit)
The Moon because it is closer to the earth
Why have humans used artificial selection in dogs? (give 2 reasons)
to create breeds to perform certain tasks (hunting, herding, pest control) or for the look of them
When it is summer in the Northern Hemisphere, which pole is titled towards the sun?
the North Pole
What two factors keep planets in orbit?
The gravitational pull of the sun and Inertia (their velocity)
The approximate number of hours between each high and low tide
6 hours
The beaks of finches found on various Galapagos Islands differed based on -
the type of food available
Why are temperatures higher at the Equator year round than in Boston?
The equator receives more direct sunlight throughout the year
What would happen to planets in their orbits in the solar system if the Sun suddenly disappeared?
They would fly off into space
Type of tide when the earth, Moon, and Sun are in a straight line with the highest high tides and lowest low tides
Spring tide
How are natural and artificial selection different?
With natural selection, traits that give animals an advantage in the environment are passed on. With artificial selection, humans choose the traits that are passed on.
What are the two reasons for the seasons?
Earth's tilt and Earth's revolution around the Sun
What would happen to planets in their orbits in the solar system if they suddenly stopped moving?
They would be pulled into the Sun
Type of tide when the Moon and Sun are at 90 degree angles with the earth and the tidal difference is the least