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Exam (elaborations) Elementary Education
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5005 Praxis Blue Notes
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This Eon Earth is formed 4.5 billion years ago-HadeanDuring this Eon prokaryote life first emerged 2.5 billion years- Archean
This Eon Eukaryotes is formed 541 million years ago- Proterozoic
This Eon complex life formed 541 million-present years ago- Phanerozoic
A full moon occurs when the moon is "behind" the earth.
A new moon occurs when the moon is "in front of" the earth.
The quarters will occur halfway between a new and full moon.
Who coined the term cell- Robert Hooke
If an onion is cut and dipped into table salt, what happens to the cell membrane?
Water will be drawn out due to osmosis
Example of physical weathering- Water freezing and cracking the asphalt
Example of mechanical weathering- the process of breaking down rocks by physical
means (water freezes in a crack in the rock and breaks it apart)
What has hollow bones and no teeth - Birds
What do the gas giants mostly consist of- hydrogen and helium
Theory of evolution- Charles Darwen
Plate tectonic Theory- Alfred Wegener 1912- Tuzo Wilsin 1960
Father of genetics – Gregor Mendal
Big Bang theory – Georges Lemaitre
Classification of living organisms- Carl Linnaeus
Linked together in protein – Amino Acids
Phloem transports foods like sugars throughout the plant.
,In humans, the allele for freckles (F) is dominant and the allele for no freckles
(f) is recessive. Which of the following is a genotype of people without
freckles? - Both alleles must be recessive if a person is to exhibit a recessive
trait such as lack of freckles.
Which of the following is a reactant in the photosynthesis reaction- Carbon
Dioxide Photosynthesis uses carbon dioxide, water, and light energy to
produce oxygen and
glucose.
Mr. Crane, a geologist, studies glacial movement. These slow-moving sheets
of ice provide needed resources for many organisms. What could be an
immediate environmental impact if the temperatures of the glaciers were
increased to 5° Celsius?
The melting point of ice is 0° Celsius. If the temperatures of the
glaciers increased to 5° Celsius, the ice would melt and the water
levels would increase, causing floods. Ecosystems would be greatly
impacted.
While Jessica is viewing membrane-stained cells under a compound
microscope, she notices that the cells appear to have specialized organelles.
These cells are most likely which of the following?
All eukaryotic cells contain specialized, membrane-bound organelles.
Red flowers are dominant over white flowers in roses. A heterozygous red
flowering rose is mated with a purebred, white colored rose. What
percentage of their offspring will have the genotype rr?- 50% Red flowers
are dominant over white flowers in roses. A heterozygous red flowering rose
is mated with a purebred, white colored rose. What percentage of their
offspring will have the genotype rr?
Sally notices that there has often been dew on the ground the past four
mornings. Sally asks her science teacher why dew forms on the ground.
, Which of the following would be the best response by Sally's science
teacher?- As the temperature drops during the night, the air cannot hold as
much water, and the water vapor forms into liquid water on the ground.
Michelle pours lemonade powder into a cup of ice and water. She stirs it with
a spoon to mix up the powder more quickly. What is the solvent?- the liquid
water (The material that the object is dissolved within is the solvent. The
lemonade powder is dissolved into the water, so the water is the solvent.)
Which organelle is responsible for breaking down glucose into energy for the
cell?- mitochondria
A solution of 4 on the pH scale is: an acid (When the pH is less than 7, the
solution is an acid.)
A weatherman on the local news is describing a cold front reaching and
pushing up warm air later in the day. Which of the following is the
weatherman most likely explaining? -the development of thunderstorm
clouds &the likelihood of rain
Scientists use three seismometers to triangulate the epicenter of an
Earthquake.
Metal cooking utensils often have wooden handles. Which property of wood
makes it a good material for the handle on a cooking tool?- Wood is a poor
conductor of heat
(The electrons of wood, glass, plastic, and air are examples of materials that
have electrons which stay close to the nucleus of the atom making them
poor conductors of heat and electricity. These poor conductors of heat and
electricity are used as insulators. Insulation is the positive factor that makes
wood a good tool for cooking.)
Of the choices listed, which is the best analogy for voltage in a circuit? Of the
choices listed, which is the best analogy for voltage in a circuit?- the height
difference between the top and bottom of a hill
(Voltage is related to the potential energy of the charges in a circuit. For
example, charges at one terminal of a disconnected battery have the
"potential" to make current flow as soon as the battery is connected.)
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