Characteristics of Living Things
Organisms made of only one cell are called what
Unicellular
What is the largest and broadest level of classification?
Domain
Any living thing.
Organism
What is the process through which organisms better adapted to their environment survive and reproduce?
Natural Selection
Contains a weakened or inactive version of a pathogen, a shot that trains the immune system to fight off a specific disease. This helps prevent viral infections.
Vaccine
The process of keeping internal conditions stable, AKA your bodys state of equilibrium, is called what?
Homeostasis
The classification level that comes right below domain is what
Kingdom
A change or signal in the environment that causes an organism to react in some way.
Stimulus
What is the process by which species change over time?
evolution
What do organisms in the domains Archaea and Bacteria have in common?
they are unicellular and have no nucleus
What is the smallest unit of life?
Cell
What is the two-word naming system called?
binomial nomenclature
Single-celled microorganisms found virtually everywhere, including in soil, water, and the human body. Some are beneficial, and others can cause disease.
Bacteria
Who developed the idea of evolution by natural selection?
Charles Darwin
What is absorbing nutrients from decaying or living organisms
Fungi
A eukaryotic cell is different from a prokaryotic cell because it has what
Nucleus
What are the three domains that all living things are classified into?
Bacteria, Archaea, and Eukarya
A microscopic agent that can replicate only inside the living cells of a host.
Virus
What was the mistaken idea that living things could come from nonliving matter?
spontaneous generation
What is the main energy source for most autotrophs?
Sunlight
What are the basic needs all living things must have to survive?
water, food, living space
The first word in a scientific name refers to the organism’s what
Genus
What do we call an organism that feeds off a host and harms it?
Parasite
What does common ancestry mean?
when species share traits because they evolved from a shared ancestor
Fungi get their food by doing what?
What is absorbing nutrients from decaying or living organisms