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The diaphragm is a system of muscles that allows ....? - correct answer. Breathing
A convex mirror ... light waves,
A convex lens ... light waves. - correct answer. Diverges
Converges
The state of matter occurring at lower temperatures is the ... state - correct answer.
Solid
What is the difference bw physical change and chemical change? - correct answer.
A physical change may alter the form, size or shape of matter; a chemical change alters
its molecules.
Put these in order to describe how blood flows from the heart to the body: body, left
atrium, right atrium, right ventricle, left ventricles, lungs - correct answer. Right
atrium, right ventricle, lungs, left atrium, left ventricle, body
An acid gives up _____ charged hydrogen ions when dissolved in water. - correct
answer. positively
When genetic signals in a cell fail to tell it to stop reproducing, the result may be -
correct answer. cancer
A type of matter is classified as an element when _____ - correct answer. It cannot
be separated into different types of matter by ordinary chemical methods
The speed of light in a vacuum is approximately _____ meters per second - correct
answer. 300 million
, What is inertia? - correct answer. The tendency of an object to resist a change in
motion
What is a vector quantity? - correct answer. a quantity defined by both magnitude
and direction
What formula is used to calculate velocity - correct answer. v = d/t, where v =
velocity (a vector quantity), d = displacement (a vector quantity), and t = time
Which two bodily functions are enhanced by calcium? - correct answer. bone
growth, muscle function
The Moon affects which activity on Earth? - correct answer. tides
The asteroid belt closest to the Earth lies between which two planets? - correct answer.
Mars and Jupiter
Define biosphere - correct answer. The biosphere consists of the layers of Earth
(crust, surface, atmosphere) where life naturally occurs.
Why are the four planets closest to the sun called the terrestrial planets - correct
answer. The composition of these planets is similar to that of Earth.
A stationary front produces .. weather - correct answer. cloudy and wet
The Earth is approximately _____ years old. - correct answer. 4.6 billion
What are the five kingdoms of living things? - correct answer. Monera (sometimes
split into Bacteria and Archaea), Protista, Fungi, Plantae, Animalia
Put these classifications in order from broadest to narrowest: class, domain, family,
genus, kingdom, species, order, phylum - correct answer. Domain, Kingdom,
Phylum, Class, Order, Family, Genus, Species
Define biome - correct answer. A biome is a major life zone of interrelated species
bound together by a similar climate and similar plant and animal life.
The genetic material of a eukaryotic cell is contained in its - correct answer. nucleus
Diploids cells have .. times the number of chromosomes as do haploid cell - correct
answer. Two
How does vaccination (immunization) prevent disease - correct answer. it causes
the immune system to react to a deactivated, weakened, or partial pathogen so that the
immune system will react to future exposure to a similar pathogen