Unit 1
Which statement about the heliocentric theory is correct?
Heliocentric theory is a set of testable explanations describing the Sun as being the center of the solar system.
What is asexual reproduction?
production of offspring from a single parent.
What is a trait?
a characteristic of an organism
1809
What is a predator prey relationship?
were one animal eats the other animal
What is a bar graph?
It is a graph that consists of bars to measure data.
In what shape are chromosome cells shaped?
In a X formation
What do genes do?
sections of DNA that control a trait
What is absolute dating?
Using radioactivity in the fossil to record its age
What is homeostasis?
a balanced and stable environment within cells and organisms
What are the properties of matter?
Mass and Volume
What does the cell membrane do?
The cell membrane is a thin outer covering that surrounds the body of a cell.
How many pairs of chromosones do humans have?
23
What is a mutation?
A change in DNA
What is an invasive species?
any species that moves to or is brought to a new environment and competes with the native species for resources