What is Life?
Single-celled organisms, like bacteria.
What is a unicellular organism?
They are the three domains of life.
What are bacteria, Archaea, and Eukarya?
The ocean.
Where do scientists believe life began?
An action or a change in behavior.
A change in an organism's surrounding that causes the organism to respond.
What is stimulus?
The dense area in a cell that contains the nucleic acids.
What is the nucleus?
This is the process of change over time.
What is evolution?
These life forms produce their own food.
What are autotrophs?
Involves only one parent and produces offspring that are identical to the parent.
What is asexual reproduction?
These eukaryotes are mostly multicellular, although some can be unicellular. They are all heterotrophic feeders.
What are fungi?
This type of diagram shows probable evolutionary relationships among organisms and the order in which specific characteristics may have evolved.
What is a branching tree diagram?
The mistaken belief that life will arise from nonliving sources (e.g., flies from rotten meat).
What is spontaneous generation?
The combination of chemical reactions through which an organism builds up or breaks down materials.
What is metabolism?
These are both unicellular prokaryotes.
What are bacteria and archaea?
This is the process by which unrelated organisms evolve characteristics that are similar.
What is convergent evolution?
These two chemicals are the "building blocks" of cells.
What are proteins and lipids?
Organisms that cannot make their own food.
What are heterotrophic organisms?
These are the eight levels of taxonomic classification scientists use to distinguish organisms from one another.
What are Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species?
When an organism mutates and survives in a new environment because it has favorable genetic traits that it then passes down to its offspring.
What is natural selection? (Also acceptable: What is "survival of the fittest?")
The maintenance of internal stable conditions.
What is homeostasis?