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The building block for all living things is the

a skeleton
b muscle
c cell
d organ
e egg
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which process results in the formation of sedimentary rocks?

a Rock fragments are layered and pressurized over time
b Rocks are sorted under a glacier retreats
c Rocks are heated and changed by volcanic forces quickly
d Rocks that contain two or more minerals melted together
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a student weighs an ice cube. The student places the ice cube under a heat lamp. The ice cube melts.
Which phrase describes the weight of the water from the melted ice cube?

a half the weight of the ice cube
b the same as the weight of the ice cube
c less then the weight of the ice cube
d more then the weight of the ice cube
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Denebola and Regulus are two stars that can be viewed in the constellation Leo. These stars look similar when viewed from Earth. However, Regulus is much farther away from Earth than Denebola.
Which Best explains why Regulus and Denebola appear as if they are the same distance from Earth, even though they are not?

a Regulus is smaller than Denebola
b Regulus is brighter than Denebola
c Denebola appears to the east of Regulus
d Denebola rotates more slowly then Regulus
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Brian did a scientific experiment testing the effect of lemon juice on apples. He cut an apple in half and placed half in lemon juice for 10 minutes. He compared it to other half exposed to air. Brian concluded that lemon juice prevents browning of apples.
How can Brian improve his experiment?

a Conduct more trials with apples
b Peel the apples before testing
c Place all apple pieces in lemon juice
d test other fruit
e Test vegtables
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How should they describe the output of the fan?

a cool energy of air
b motion energy of air
c heat energy of the motor
d electrical energy of the motor
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in which biome would the climax species be reached most quickly following a fire?

a taiga
b desert
c grassland
d deciduous forest
e tropical rain forest
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when do the banding patterns of metamorphic rock form?

a when molten magma cooled and crystals formed
b when grains of sediment were cemented together
c when volcanic lava was ejected and cooled quickly
d when the original rock underwent heat and pressure
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a producer in the ecosystem

a changes heat energy into chemical energy
b uses heat energy to build up simple sugars
c changes light energy into chemical energy
d changes chemical energy into heat energy
e uses potential energy to produce chemical energy
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skin would belong to which group?

a cell
b tissue
c organ
d organ system
e organism
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what is the cause of Earth's global winds?

a the equator receives more direct incoming solar radiation than the poles
b the depletion of the ozone layer causes more UV radiation to escape from earth
c The air, water, and sand on Earth are evenly heated at the equator and the poles
d The average kinetic of air molecules decreases when solar radiation is recieved
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a group of cells working together to perform a certian job is called a(an)

a relationship
b organ
c organism
d tissue
e organ system
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Dahila is examining a model of a city that represents the organelles within the cell.
Which city part represents the smooth endoplasmic reticulum?

a a factory, which builds the materials used within the cell
b the airport, which carries materials out of the cell
c the railroad and its trains, which carry materials within the city
d the mayor's office, which manages the city
e the recycling plant, where used materials are broken down for reuse
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which technologies advance has helped scientists to search for life in other start systems?

a development of planetary landers and rovers
b invention of spectrographs to study a stellar rotation
c invention of multi-stage rockets for deep space travel
d development of radio telescopes to monitor for intelligent transmissions
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Meteorologists regularly use battery-powered electronic devices to record field data. These devices record and store weather data at a specific interval of time.
which condition determines how much energy is available for running these devices?

a the amount of kinetic energy of the battery
b the velocity of wind moving over the device
c the availability of solar energy to the device
d the amount of chemical energy in the battery
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which property of water stay the same when water changes from solid to liqud?

a mass
b density
c volume
d tempature
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if the price of oil decreased by %1000, which would be least likely to happen?

a fewer people will drive cars
b more people will take mass transit
c cars will become more fuel efficient
d the number of gas stations will increase
e the amount of air pollution will decrase
Answered by .
which must be present in an ecosystem if the ecosystem is to continue?

a producer and carnivore
b producers and decomposers
c carnivores and decomposers
d herbivores and carnivores
e herbivores and prodcuers
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which agent most changes the earths surfaces?

a moving ice
b wave action
c running water
d tide action
e cloud movement
Answered by .
what type of bond results from the sharing of a pair of electrons between 2 atoms?

a ionic bond
b metallic bond
c covalent bond
d hydrogen bond
Answered by .
which part of a cell functions to maintain homeostasis relative to the cells enviorment?

a cell membrane
b cytosol
c Golgi apparatus
d mitocondrion
e nucleus

Answered by .
which are sedimentary rocks?

a basalt - shale
b granite - pumice
c limestone - pumice
d obsidian - granite
e sandstone - mudstone
Answered by GPT 3.5
c cell
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a Rock fragments are layered and pressurized over time
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c less than the weight of the ice cube
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b Regulus is brighter than Denebola
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a Conduct more trials with apples
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b motion energy of air
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c grassland
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d when the original rock underwent heat and pressure
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c changes light energy into chemical energy
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b tissue
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a the equator receives more direct incoming solar radiation than the poles
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d tissue
Answered by GPT 3.5
a a factory, which builds the materials used within the cell
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d development of radio telescopes to monitor for intelligent transmissions
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d the amount of chemical energy in the battery
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a mass
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e the amount of air pollution will decrease
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b producers and decomposers
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c running water
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c covalent bond
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a cell membrane
Answered by GPT 3.5
e sandstone - mudstone