Unit 1
Information gathered by using senses
What is observation?
A thin outer covering that surrounds the body of a cell
What is a cell membrane?
Passing of traits from parents to offspring
What is heredity?
Species produce more offspring than can survive?
What is overproduction?
An organism's move from one region to another
What is migration?
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?
Individual characteristics
What are traits?
A process in which organisms with greater fitness survive and produce more offspring
What is natural selection?
A period of time in which an organism stops or slows its normal functions
What is hibernation?
An explanation for an observable phenomena
What is a scientific theory?
Carries electrical signals, red blood cells carry oxygen, and white blood cells fight infections
What are the nerve cells?
The variation of a gene
What is an allele?
A group of organisms that can breed with each other, and produce fertile offspring
What is species?
When organisms maintain a stable environment within their cells and bodies
What is homeostasis?