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Did the the open circulatory systems of molluscs and arthropods arise dependently or independently of each other?
A. independently
B. dependently
C. together
D. separately
Answer:
|
A
|
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|
What kind of weathering is abrasion?
A. molecular
B. natural
C. mechanical
D. electromagnetic
Answer:
|
C
|
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|
What are composed of alternating positive and negative ions?
A. magnetic crystals
B. radioactive substances
C. ionic crystals
D. polar bonds
Answer:
|
C
|
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|
What is the term for a small organelle where proteins are made?
A. ovary
B. capsule
C. ribosome
D. atom
Answer:
|
C
|
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|
What occurs when the immune system attacks harmless substances that enter the body from the outside?
A. allergies
B. cell rejection
C. mutation
D. anomalies
Answer:
|
A
|
sciq
|
What is composed of very long strands of glucose monomers, is largely indigestible and comprises the cell walls of plants?
A. chlorophyll
B. tree bark
C. vascular cambrium
D. cellulose
Answer:
|
D
|
sciq
|
Where are the terrestrial planets located, in relation to the sun?
A. To the left
B. closest
C. farthest
D. To the right
Answer:
|
B
|
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|
What are the insects that suck up the sap from plants?
A. roaches and leafhoppers
B. butterflies and leafhoppers
C. aphids and leafhoppers
D. plagues and leafhoppers
Answer:
|
C
|
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|
The energy for an ecosystem can come from sunlight or _________?
A. rain
B. fossil fuels
C. radiation compounds
D. chemical compounds
Answer:
|
D
|
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|
Phagocytosis, pinocytosis, and receptor-mediated endocytosis are the three types of what?
A. mitosis
B. modulators
C. endocytosis
D. nanoparticles
Answer:
|
C
|
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|
What type of machines generally have lower efficiency but greater mechanical advantage?
A. radical machines
B. simple machines
C. calculation machines
D. compound machines
Answer:
|
D
|
sciq
|
What is the name of the layer above the mesosphere?
A. lithosphere
B. intersphere
C. thermosphere
D. exosphere
Answer:
|
C
|
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|
What layer of earth contains abundant oxygen, which can combine with other elements to create oxide minerals?
A. the crust
B. the surface
C. the core
D. the tectonic plates
Answer:
|
A
|
sciq
|
Animals that are endotherms or ectotherms are distinguished by the ability to maintain a constant what?
A. bearing temperature
B. step temperature
C. Moving Tempature
D. body temperature
Answer:
|
D
|
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|
What form of energy is light?
A. hydro
B. mechanical
C. seismic
D. electromagnetic
Answer:
|
D
|
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|
What is a common chemical substance on planet earth?
A. oxygen
B. nitrogen
C. hydrogen
D. water
Answer:
|
D
|
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|
Blood calcium levels are tightly regulated by the what system?
A. cardiovascular
B. endocrine
C. digestive
D. nervous
Answer:
|
B
|
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|
This bodily defense function attacks pathogens and includes inflammatory response and phagocytosis?
A. vomitting
B. third line of defense
C. first line of defense
D. second line of defense
Answer:
|
D
|
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|
Lodgepole cones remain closed until exposed to what?
A. extreme heat
B. UV light
C. predators
D. precipitation
Answer:
|
A
|
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|
What is the change of state from a gas to a liquid?
A. vaporation
B. combustion
C. fermentation
D. condensation
Answer:
|
D
|
sciq
|
The steropodon may have been an ancestor of which animal?
A. geckos
B. wooly mammoth
C. lioness
D. platypus
Answer:
|
D
|
sciq
|
Closely associated with "work", what is characterized by its many forms and the fact that it is conserved?
A. fuel
B. matter
C. heating
D. energy
Answer:
|
D
|
sciq
|
What is the time it takes for radioactive substance to decay?
A. half-life
B. decay rate
C. deterioration rate
D. full-life
Answer:
|
A
|
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|
What type of biomes are found in the salt water of the ocean?
A. major
B. surreal
C. active
D. marine
Answer:
|
D
|
sciq
|
What is formed when an enzyme binds its substrate?
A. lock and key model
B. nucleus - substrate complex
C. enzyme - substrate complex
D. vessel - substrate complex
Answer:
|
C
|
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|
What type of rock is a sandstone?
A. limestone rocks
B. landform rocks
C. igneous rocks
D. sedimentary rocks
Answer:
|
D
|
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|
Which acids provide the molecular blueprints for all proteins produced in living systems?
A. amino acids
B. nucleic acids
C. periodic acids
D. nitrous acids
Answer:
|
B
|
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|
Cephalopods have three hearts that pump blood of what color?
A. blue
B. Red
C. Green
D. purple
Answer:
|
A
|
sciq
|
Influenza is a type of what, where glycoproteins attach to a host epithelial cell?
A. viral disease
B. nucleus disease
C. recent disease
D. atoms disease
Answer:
|
A
|
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|
What is the smallest aromatic hydrocarbon?
A. benzene
B. anthracene
C. phenanthrene
D. naphthalene
Answer:
|
A
|
sciq
|
A hypothesis is scientific only if it can be tested by what?
A. carbon dating
B. making observations
C. making a conclusion
D. independent variable
Answer:
|
B
|
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|
Aging occurs as cells lose their ability to do what?
A. split
B. divide
C. duplicate
D. fold
Answer:
|
B
|
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|
The tyndall effect refers to the scattering of what by colloidal particles?
A. primary colors
B. dark matter
C. visible light
D. dust mites
Answer:
|
C
|
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|
Acids are associated with a low number on which scale?
A. acidic
B. ph
C. ionic
D. metric
Answer:
|
B
|
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|
Said to go hand-in-hand with science, what evolves as new materials, designs, and processes are invented?
A. invention
B. technology
C. industry
D. biology
Answer:
|
B
|
sciq
|
What are the poles labeled?
A. west and south
B. southwest and south
C. east and west
D. north and south
Answer:
|
D
|
sciq
|
What is considered to be the "fundamental unit" of life?
A. bacteria
B. proton
C. cell
D. organ
Answer:
|
C
|
sciq
|
What two states of matter are included in the category "fluids"?
A. solids and gases
B. liquids and soilds
C. liquids and gases
D. bacteria and gases
Answer:
|
C
|
sciq
|
When matter changes into an entirely different substance with different chemical properties, what has occurred?
A. mechanical change
B. gaseous change
C. chemical change
D. physical change
Answer:
|
C
|
sciq
|
Phospholipids are unable to mix with what?
A. nitrogen
B. solids
C. water
D. air
Answer:
|
C
|
sciq
|
What are molecules that the immune system recognize as foreign to the body?
A. tumors
B. antigens
C. peptides
D. viruses
Answer:
|
B
|
sciq
|
The end result of diffusion is an equal concentration, or equilibrium , of molecules on both sides of what?
A. the organelle
B. the cell
C. the membrane
D. the organism
Answer:
|
C
|
sciq
|
What paired organs that are part of the urinary system play the prime role in excretion?
A. kidneys
B. ovaries
C. liver
D. lungs
Answer:
|
A
|
sciq
|
The fungus benefits from the constant supply of food produced by what?
A. the host
B. the phytoflagellate
C. the spermatophyte
D. the photosynthesizer
Answer:
|
D
|
sciq
|
Gases can be classifed as real or what?
A. noble
B. ideal
C. shape
D. dense
Answer:
|
B
|
sciq
|
What is a mutation?
A. change in the swetha sequence of dna
B. change in the nucleotide sequence of dna
C. change in the rna sequence of dna
D. change in the distinct sequence of dna
Answer:
|
B
|
sciq
|
What are biological catalysts that speeds up biochemical reactions?
A. proteins
B. enzymes
C. carbohydrates
D. hormones
Answer:
|
B
|
sciq
|
What type of reaction is a transfer of a proton from one molecule or ion to another?
A. ionization
B. acid-base
C. thermal reaction
D. ionic bonding
Answer:
|
B
|
sciq
|
What part of the plant, in general, is responsible for transport and storage of water and minerals?
A. pistil
B. leaves
C. stems
D. petals
Answer:
|
C
|
sciq
|
One gram of carbohydrates provides how many calories of energy?
A. four
B. one
C. eight
D. two
Answer:
|
A
|
sciq
|
Mushrooms and other fungi obtain energy from what?
A. the sun
B. the soil
C. the air
D. other organisms
Answer:
|
D
|
sciq
|
How are protozoa that cause giardiasis spread?
A. lakes and rivers
B. insects
C. starch and water
D. food and water
Answer:
|
D
|
sciq
|
What can prevent the passage of molecules and ions between cells, such as in the blood-brain barrier?
A. tight junctions
B. special junctions
C. solid junctions
D. fatty junctions
Answer:
|
A
|
sciq
|
Give an example of air pollution while painting indoors.
A. variety fumes
B. fuel fumes
C. gas fumes
D. paint fumes
Answer:
|
D
|
sciq
|
What plays a variety of important roles in biochemical systems?
A. bacteria
B. protein
C. reactants
D. mutation
Answer:
|
B
|
sciq
|
What type of plants grow on other plants?
A. bryophytes
B. legumes
C. epiphytes
D. parasites
Answer:
|
C
|
sciq
|
What provides a protective covering for the body and helps maintain homeostasis?
A. lysogenic system
B. unadorned system
C. integumentary system
D. endorcrine system
Answer:
|
C
|
sciq
|
Uranium is an important part of the process used to harness which type of power?
A. solar
B. wind
C. gravitational
D. nuclear
Answer:
|
D
|
sciq
|
Budding and fission in annelids are examples of what type of reproduction?
A. sexual
B. byproduct
C. asexual
D. hybrid
Answer:
|
C
|
sciq
|
What is the process by which plants make their own food?
A. ATP cycle
B. photosynthesis
C. mitochondrial process
D. respiration
Answer:
|
B
|
sciq
|
In what part of the carbon cycle does carbon move between living things and the air?
A. biotic cycle
B. endothermic cycle
C. abdaspac cycle
D. envelop cycle
Answer:
|
A
|
sciq
|
Herbivores and the bacteria that live in their intestines demonstrate a two-way beneficial relationship called what?
A. mutualism
B. pragmatism
C. syncretism
D. parasitism
Answer:
|
A
|
sciq
|
What joins within each testis to form the epididymis?
A. hypodermic tubules
B. interstitial tubules
C. seminiferous tubules
D. viviparous tubules
Answer:
|
C
|
sciq
|
How many layers of phospholipids does the cell membrane contain?
A. two
B. five
C. four
D. three
Answer:
|
A
|
sciq
|
What process within cells makes sure that every gamete receives a copy of every chromosome?
A. genomes
B. meiosis
C. fission
D. mutations
Answer:
|
B
|
sciq
|
Do amphibians and reptiles maintain a constant body temperature?
A. no, they have a higher body temperature than their surroundings
B. yes
C. no, they have a lower body temperature than their surroundings
D. no, they have about the same body temperature as their surroundings
Answer:
|
D
|
sciq
|
Most vascular plants are seed plants, also known as?
A. spermatophytes
B. sporozoans
C. bacteria
D. fungus
Answer:
|
A
|
sciq
|
Centrifuges use what to perform their task?
A. inertia
B. magnetism
C. jets
D. absorption
Answer:
|
A
|
sciq
|
What are the two unique features of mollusks?
A. radula and antennae
B. antennae and pseudopod
C. pseudopod and mantle
D. mantle and radula
Answer:
|
D
|
sciq
|
Name the two types of water turtles live in.
A. ocean water and fresh water
B. ocean water and sea water
C. arctic water and ice water
D. river water and lake water
Answer:
|
A
|
sciq
|
What structures are located on roof of the nasopharynx and on each side of the pharynx?
A. uvula
B. testicles
C. tongues
D. tonsils
Answer:
|
D
|
sciq
|
What colorful arc-shaped atmospheric phenomena are produced by a combination of refraction and reflection?
A. rainbows
B. sunsets
C. lightning
D. shadows
Answer:
|
A
|
sciq
|
Rabies transmission occurs when saliva from an infected mammal enters a wound. the virus travels through neurons in the peripheral nervous system to the central nervous system where it impairs this?
A. reproduction system
B. brain function
C. lung function
D. skeletal system
Answer:
|
B
|
sciq
|
Newton realized that the nature of gravity on earth that pulls an apple to the ground could explain the motion of these?
A. moon and planets
B. seasons
C. molecules
D. atoms and quarks
Answer:
|
A
|
sciq
|
Where do most of the steps of cellular respiration take place?
A. mitochondria
B. ribosomes
C. cytoplasm
D. nucleus
Answer:
|
A
|
sciq
|
Which metal is not solid at room temperature?
A. titanium
B. aluminum
C. silver
D. mercury
Answer:
|
D
|
sciq
|
Induced mutations are caused by environmental factors. what term is used to describe a mutation that has no environmental cause?
A. evident mutation
B. spontaneous mutation
C. cancerous mutation
D. numerous mutation
Answer:
|
B
|
sciq
|
What part of the cell does cellular respiration occur?
A. proton
B. nuclei
C. mitochondria
D. glucose
Answer:
|
C
|
sciq
|
How is the chance of survival affected when animals lack parental care?
A. variable
B. unaffected
C. decreased
D. increased
Answer:
|
C
|
sciq
|
Elements with magic numbers of what tend to have more stable isotopes?
A. pressure
B. nucleus
C. molecules
D. protons
Answer:
|
D
|
sciq
|
What is the term for the steep sloped side of a sand dune?
A. slip face
B. break face
C. slide face
D. front face
Answer:
|
A
|
sciq
|
Pulleys are generally used to do what with objects?
A. wrap
B. lift
C. clean
D. pack
Answer:
|
B
|
sciq
|
What term describes how close estimates are to one another?
A. efficiency
B. precision
C. precise
D. Distant
Answer:
|
B
|
sciq
|
What are membrane-bound organelles that can have secretory, excretory, and storage functions?
A. alleles
B. vacuoles
C. prokaryotes
D. nuclei
Answer:
|
B
|
sciq
|
The structural classification of joints divides them into bony, fibrous, cartilaginous, and synovial joints. the bones of fibrous joints are held together by fibrous connective tissue; the three types of fibrous joints are sutures, syndesomes, and what?
A. gomphoses
B. articular
C. cartilaginous
D. synchondrosis
Answer:
|
A
|
sciq
|
A catalyst can increase the rate of what, in general?
A. carbon reaction
B. mechanicl reaction
C. chemical reaction
D. consumption reaction
Answer:
|
C
|
sciq
|
Which crust lies deep inside the ocean?
A. thickest
B. shallowest
C. youngest
D. oldest
Answer:
|
D
|
sciq
|
What is the most significant cause of respiratory disease as well as cardiovascular disease and cancer?
A. sleeping
B. driving
C. running
D. smoking
Answer:
|
D
|
sciq
|
What type of light can you feel as heat but not see and has the longest wavelengths and lowest frequencies?
A. infrared light
B. solar light
C. thermal light
D. ultraviolet light
Answer:
|
A
|
sciq
|
Ionic, molecular, covalent, and metallic are major types of what state of matter?
A. gas
B. liquid
C. plasma
D. solids
Answer:
|
D
|
sciq
|
What forces keep the moon orbiting the earth?
A. magnetic
B. gravitational
C. polar
D. cosmic
Answer:
|
B
|
sciq
|
Snow and ice may also undergo which process where there is intense sunlight, very cold temperatures, and dry winds?
A. sublimation
B. increasefixation
C. crystalline
D. amplification
Answer:
|
A
|
sciq
|
Electromagnets can be controlled by controlling what type of current?
A. negative
B. electric
C. positive
D. magnetic
Answer:
|
B
|
sciq
|
The rate of evolution is influenced by the rate of changes to what?
A. the earth
B. migration
C. dna
D. the environment
Answer:
|
D
|
sciq
|
What do you call a device that produces a very focused beam of visible light of just one wavelength and color?
A. fusion relay
B. optical diffuser
C. laser
D. light meter
Answer:
|
C
|
sciq
|
Bubbles in bread dough are created by what gas produced during alcoholic fermentation?
A. acid dioxide
B. yeast dioxide
C. combustion dioxide
D. carbon dioxide
Answer:
|
D
|
sciq
|
What is the capacity to cause change?
A. temperature
B. energy
C. mass
D. gravity
Answer:
|
B
|
sciq
|
Ocean currents transfer heat from the equator towards what locations?
A. tropical zones
B. poles
C. continents
D. east and west
Answer:
|
B
|
sciq
|
In sexual reproduction, two of what unite to produce an offspring?
A. DNA strands
B. gametes
C. chromosomes
D. spores
Answer:
|
B
|
sciq
|
What are the ends of long bones called?
A. marrow extension
B. appendage
C. epiphysis
D. cartilage
Answer:
|
C
|
sciq
|
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