Cells
Prokaryotic organisms are... (multicellular or unicellular)?
always unicellular
What are all organisms made of?
one or more cells
"bio-" means...
life
What is an organism?
a LIVING THING
A unicellular organism...
is made of only one cell.
What type of cell is a bacterium?
prokaryotic cell
When an organism eats food, what characteristic of life is it showing?
it is using and making energy
"hetero-" means...
different
What is a population?
A group of organisms of the SAME SPECIES that live in the same area.
A multicellular organism...
is made of more than one (many) cells
eukaryotic cells have a nucleus and membrane-bound structures, prokaryotes do not
When an organism makes more of itself, what characteristic of life is it showing?
it is reproducing
"uni-" means...
one
What is a community?
All of the LIVING THINGS in an area
How does an autotroph get its energy?
It makes the food itself
Eukaryotic organisms are... (multicellular or unicellular)?
When an organism reacts to the temperature outside, what characteristic of life is it showing?
it is responding to its environment
"auto-" means...
self
What is an ecosystem?
it eats other organisms
Multicellular organisms have what type of cell?
eukaryotic cells
As an organism grows up, it gets larger and more complex. Which characteristic of life if it showing?
it is growing and developing
"a-" means...
not or without
List the 4 levels of ecosystems in order from smallest to largest.
organism, population, community, ecosystem
What is an example of a unicellular organism?
bacterium, yeast, amoeba, paramecium