Praxis 5005 Science Practice Test with
Accurate Solutions
Which of the following characteristics is (are) unique to mammals? - ANSWER-milk
producing glands
Which of the following organ systems is responsible for the transport of blood and
nutrients? - ANSWER-circulatory system
an example of a device that converts electrical energy directly into mechanical energy -
ANSWER-A motor
represents the amount of space an object takes up? - ANSWER-Volume
Which of the following is a major advantage of sexual reproduction over asexual
reproduction? - ANSWER-Increasing the genetic diversity of organisms in a population
Earth is considered to be the only planet in the solar system that can sustain a complex
biosphere because it is the only planet that has - ANSWER-a significant amount of
surface water in liquid form
Before a dividing cell can begin mitosis, the DNA of the cell must undergo - ANSWER-
mutation
The positions of stars seen in the summer at 11 P.M. are different than those seen in
the winter at the same time. Which of the following best explains this? - ANSWER-Earth
revolves around the Sun.
Most of an atom's volume is - ANSWER-empty space
Which of the following is generally true about X-linked disorders in humans? -
ANSWER-Both males and females can have the disorder.
Scientists believe that the solar system formed from which of the following? - ANSWER-
A cloud of gas and dust
Which of the following is a structure formed during the asexual phase of the moss life
cycle - ANSWER-Spore
A total lunar eclipse occurs when Earth casts a shadow on the Moon. What is the
Moon's phase when a total lunar eclipse occurs? - ANSWER-Full moon
, which of the following examples represents potential energy without kinetic energy? -
ANSWER-a cannon is loaded and stuffed with gunpowder
which layer of earth's atmosphere is responsible gor the creation of the Aurora borealis?
- ANSWER-ionosphere
which of the following waves travel most slowly? - ANSWER-sound waves
a wispy white cloud (usually of fine ice crystals) at a high altitude (4 to 8 miles) (highest
elevation) - ANSWER-cirrus
the layer of the earth between the crust and the core (MAJORITY OF THE PLANET'S
VOLUME) - ANSWER-mantle
biome with the greatest biodiversity - ANSWER-tropical rainforest\
primary function of the ribosome in a animals cell is to - ANSWER-create protein from
amino acids
how many chromosomes does a normal human cell contain - ANSWER-46
what can be used to calculate the momentum of an object? - ANSWER-mass X velocity
humans produce which vitamin from sunlight - ANSWER-vitamin D
which best explains the cause of a lunar eclispe? - ANSWER-earth moves in between
the sun and moon
which of the following is an example of potential energy - ANSWER-rubber band is
stretched to capacity
coldest layer of atmosphere - ANSWER-mesophere
we are currently living in which era - ANSWER-Cenozoic Era
when the sun and moon are on opposite sides of the earth, observers on earth perceive
a - ANSWER-full moon
which of the following does NOT reproduce sexually - ANSWER-Protists
correct level of biomes - ANSWER-species-population-community biomes
which of the following is not an evolution - ANSWER-biological evolution
Accurate Solutions
Which of the following characteristics is (are) unique to mammals? - ANSWER-milk
producing glands
Which of the following organ systems is responsible for the transport of blood and
nutrients? - ANSWER-circulatory system
an example of a device that converts electrical energy directly into mechanical energy -
ANSWER-A motor
represents the amount of space an object takes up? - ANSWER-Volume
Which of the following is a major advantage of sexual reproduction over asexual
reproduction? - ANSWER-Increasing the genetic diversity of organisms in a population
Earth is considered to be the only planet in the solar system that can sustain a complex
biosphere because it is the only planet that has - ANSWER-a significant amount of
surface water in liquid form
Before a dividing cell can begin mitosis, the DNA of the cell must undergo - ANSWER-
mutation
The positions of stars seen in the summer at 11 P.M. are different than those seen in
the winter at the same time. Which of the following best explains this? - ANSWER-Earth
revolves around the Sun.
Most of an atom's volume is - ANSWER-empty space
Which of the following is generally true about X-linked disorders in humans? -
ANSWER-Both males and females can have the disorder.
Scientists believe that the solar system formed from which of the following? - ANSWER-
A cloud of gas and dust
Which of the following is a structure formed during the asexual phase of the moss life
cycle - ANSWER-Spore
A total lunar eclipse occurs when Earth casts a shadow on the Moon. What is the
Moon's phase when a total lunar eclipse occurs? - ANSWER-Full moon
, which of the following examples represents potential energy without kinetic energy? -
ANSWER-a cannon is loaded and stuffed with gunpowder
which layer of earth's atmosphere is responsible gor the creation of the Aurora borealis?
- ANSWER-ionosphere
which of the following waves travel most slowly? - ANSWER-sound waves
a wispy white cloud (usually of fine ice crystals) at a high altitude (4 to 8 miles) (highest
elevation) - ANSWER-cirrus
the layer of the earth between the crust and the core (MAJORITY OF THE PLANET'S
VOLUME) - ANSWER-mantle
biome with the greatest biodiversity - ANSWER-tropical rainforest\
primary function of the ribosome in a animals cell is to - ANSWER-create protein from
amino acids
how many chromosomes does a normal human cell contain - ANSWER-46
what can be used to calculate the momentum of an object? - ANSWER-mass X velocity
humans produce which vitamin from sunlight - ANSWER-vitamin D
which best explains the cause of a lunar eclispe? - ANSWER-earth moves in between
the sun and moon
which of the following is an example of potential energy - ANSWER-rubber band is
stretched to capacity
coldest layer of atmosphere - ANSWER-mesophere
we are currently living in which era - ANSWER-Cenozoic Era
when the sun and moon are on opposite sides of the earth, observers on earth perceive
a - ANSWER-full moon
which of the following does NOT reproduce sexually - ANSWER-Protists
correct level of biomes - ANSWER-species-population-community biomes
which of the following is not an evolution - ANSWER-biological evolution
