Unit 1
Which statement about the heliocentric theory is correct?
Heliocentric theory is a set of laws that describe the Sun as being the center of the solar system.
The nucleus contains _[blank 1]_, and it has a _[blank 2]_ with holes that allow some molecules to pass through.
Blank 1: DNA
Blank 2: double membrane
Which option describes how genes control the traits of a cell?
Genes code for specific structures and molecules in a cell. Those structures and molecules form the traits of the cell.
Which statement is a pattern in the fossil record?
Multiple mass extinction events have occurred in Earth’s history.
_[blank 1]_ are known at birth. _[blank 2]_ are learned later in life.
blank 1: Innate behaviors
blank 2: Learned behaviors
If solar panels are placed under the sun at noon, then they will produce more energy than solar panels placed in the sun at dawn.
What needs to be added to this statement to make it a hypothesis?
An Explanation.
When a person looks at an object, the sense receptors in the eyes respond to changes in what?
Light.
If Sally has earlobes that are attached to the side of her head. Sally has two _[blank 1]_ that cause her to have attached earlobes. Sally has obtained these from her _[blank 2]_.
blank 1: alleles
blank 2: parents
Which statement about organisms in the fossil record is correct?
Organisms show a steady increase in diversity, interrupted by extinction events.
Which physical adaptation increases an organism’s chances of finding a suitable habitat?
The long legs of wading birds
Which option is a tool that organizes the different types of atoms?
Periodic table.
Where does photosynthesis occur in a plant cell?
Chloroplasts
Donna throws two six-sided dice.
What is the chance that the total of the two dice will be 3?
2/36
Which statement describes Hutton and Lyell’s work?
Both Hutton and Lyell claimed that Earth was very old and changed very slowly over time.
Which physical adaptation reduces a plant’s chances of being eaten?
Having bitter leaves