Unit 1
Information gathered by using the senses
What is an observation?
A thin outer covering that surrounds the body of a cell.
What is a cell membrane?
The passing of traits from parent to offspring.
What is heredity?
When a large number of species die out in a relatively short period of time.
What is a mass extinction?
Physical traits that enhance the survival and reproduction of an organism.
What are physical adaptations?
An explanation for an observation
What is an inference?
A protective structure found outside the cell membrane in some types of organisms.
What is a cell wall?
The coils of the long ladder of DNA molecules.
What are chromosomes?
A time period 250 million – 65 million years ago.
What is the Mesozoic era?
Behaviors or activities performed by an organism that increase its fitness.
What are behavioral adaptations?
An observation that describes a quantity related to what is being observed.
What is a quantitative observation?
A fluid like material.
What is cytoplasm?
Diagrams used to show possible genotypes that can result from a cross between two parents.
What are Punnett squares?
Single-celled prokaryotes.
What were the first organisms on Earth?
Activities or behaviors that are acquired by an organism through experience.
What are learned behaviors?