Hydrosphere
How much Freshwater is on Earth
3 percent
negatively charged particle; located OUTSIDE the atomic NUCLEUS in electron cloud
single-celled organisms that lack a nucleus; prokaryotes
bacteria
a major division of geological time
era
All the plants and animals that live in the same place is a
ecosystem
How much of Earth is covered in ocean water
70 percent
means that a material can be hammered or shaped (metals)
malleable
an organism that lives on or in a host and causes harm to the host
parasite
disappearance of a species from all parts of its geographical range
era
An animal that hunts other animals for food is called a
predator
Where is most of Earth's fresh water found
A characteristic that can be observed without changing it into another substance
physical property
a tiny, nonliving particle that invades and then reproduces inside a living cell
virus
A break in the earth's crust
fault
The place where an organism lives is its
habitat
How do we measure water quality
bioindicators, pH, and turbidity
Where is the atomic number found on the periodic table
the bottom of the element
consisting of many cells
multicellular
the remains of a species that existed on Earth for relatively short period of time, were abundant, and widespread geographically
index fossil
What would most likely happen if an ecosystem no longer received sunlight
all organisms would eventually die
How many zones are in the ocean?
5
the property that describes how easily a substance combines chemically with other substances
reactivity
the ability of bacteria to withstand the effects of an antibiotic
antibiotic resistance
method of determining the age of a fossil by comparing its placement with that of fossils in other layers of rock; uses words OLDER and YOUNGER
relative dating
List 3 abiotic factors
sun, air, soil, water