Verified &Updated Solutions
The diaphragm is a system of muscles that allows ....? -ANSWER - Breathing
A convex mirror ... light waves,
A convex lens ... light waves. -ANSWER - Diverges
Converges
The state of matter occurring at lower temperatures is the ... state -ANSWER - Solid
What is the difference bw physical change and chemical change? -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 -ANSWER - Right atrium, right
ventricle, lungs, left atrium, left ventricle, body
An acid gives up _____ charged hydrogen ions when dissolved in water. -ANSWER -
positively
When genetic signals in a cell fail to tell it to stop reproducing, the result may be -
ANSWER - cancer
A type of matter is classified as an element when _____ -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 -ANSWER -
300 million
What is inertia? -ANSWER - The tendency of an object to resist a change in motion
What is a vector quantity? -ANSWER - a quantity defined by both magnitude and
direction
What formula is used to calculate velocity -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? -ANSWER - bone growth, muscle
function
The Moon affects which activity on Earth? -ANSWER - tides
, The asteroid belt closest to the Earth lies between which two planets? -ANSWER - Mars
and Jupiter
Define biosphere -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 -ANSWER -
The composition of these planets is similar to that of Earth.
A stationary front produces .. weather -ANSWER - cloudy and wet
The Earth is approximately _____ years old. -ANSWER - 4.6 billion
What are the five kingdoms of living things? -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 -ANSWER - Domain, Kingdom, Phylum, Class,
Order, Family, Genus, Species
Define biome -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 -ANSWER - nucleus
Diploids cells have .. times the number of chromosomes as do haploid cell -ANSWER -
Two
How does vaccination (immunization) prevent disease -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
What is a zygote? -ANSWER - fertilized egg
1 kilometer is how many times larger than 1 millimeters -ANSWER - 1,000,000 times
larger
Ova are carried from ovaries to the uterus through the _________. -ANSWER -
fallopian tubes
The .. is the major connecting center between the brain and the nerve network -
ANSWER - spinal cord
What is another name for large intestines -ANSWER - colon