Observing the __ of something can help you tell if it is living or nonliving.
organisms
kingdoms
properties
cells
____ are protists that make their own food and usually live in water.
algae
protozoans
fungi
parasites
There are __ kingdoms of living things.
six
three
four
five
Biology is the study of ____ things.
living
nonliving
living and nonliving
developing
Mold and mushrooms belong to the ___ kingdom.
eubacteria
protist
plant
Bacteria can be helpful to humans.
True
False
