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Why does the body react to a loss of chloride ions?
A. increased tricarbonate reabsorption
B. increased bicarbonate reabsorption
C. decreased bicarbonate reabsorption
D. decreased tricarbonate reabsorption
Answer:
|
B
|
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|
The negatively charged electrons are attracted to the positively charged what?
A. atom
B. ion
C. nucleus
D. axon
Answer:
|
C
|
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|
Most of the gray matter is on the surface of the brain, surrounding what other type of matter?
A. corrugated
B. white
C. dark matter
D. blue
Answer:
|
B
|
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|
Cooling or evaporation of what from the sea surface makes surface water dense?
A. fresh water
B. warm water
C. salt water
D. dirty water
Answer:
|
A
|
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|
What is the term for reproductive cells, such as sperm and egg?
A. nucleus
B. parasites
C. spores
D. gametes
Answer:
|
D
|
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|
What material is regularly used in human hip and knee implants?
A. coal
B. metal
C. glass
D. wood
Answer:
|
B
|
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|
What are the most dramatic, sudden, and dangerous types of mass wasting?
A. monsoons
B. volcanoes
C. landslides
D. earthquakes
Answer:
|
C
|
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|
What current-carrying long coil of wire acts as a magnet?
A. antenna
B. converter
C. solenoid
D. igniter
Answer:
|
C
|
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|
In combination or synthesis reactions, two chemical species combine to produce a what?
A. fusion
B. alloy
C. new compound
D. mixture
Answer:
|
C
|
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|
The core of a star collapses during what event, forming a neutron star?
A. supernova
B. blast
C. spark
D. gravitational
Answer:
|
A
|
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|
What is the term used for a large body of air of the same temperature and moisture conditions?
A. air pool
B. air mass
C. sky mass
D. air group
Answer:
|
B
|
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|
The loss of oxygen to the heart muscle causes that part of the tissue to what?
A. beat erratically
B. die
C. thrive
D. beat harder
Answer:
|
B
|
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|
What system transports many substances to and from cells throughout the body?
A. nutritional
B. cardiovascular
C. physiological
D. circulatory
Answer:
|
B
|
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|
What consists of two or more elements and forms as a result of a chemical reaction?
A. protein
B. particle
C. compound
D. molecule
Answer:
|
C
|
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|
What is occasional chest pain known as?
A. heart murmur
B. cardiac arrest
C. arrhythmia
D. angina pectoris
Answer:
|
D
|
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|
In the cardiovascular system, where is the ultimate destination of the oxygen-poor blood?
A. brain
B. lung
C. liver
D. heart
Answer:
|
D
|
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|
What is the study of the energy transformations that occur in a collection of matter?
A. geophysics
B. thermodynamics
C. kinetics
D. fluctuations
Answer:
|
B
|
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|
Love canal was an infamous example of what type of pollution?
A. industrial waste dumping
B. thermal pollution
C. Visual Pollution
D. Land Pollution
Answer:
|
A
|
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|
What is a funnel-shaped cloud of whirling high winds known as?
A. tsunami
B. volcano
C. hurricane
D. tornado
Answer:
|
D
|
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|
Why do birds need a light-weight body?
A. food shortages
B. water flotation
C. for cooling
D. to stay aloft
Answer:
|
D
|
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|
Asthma, pneumonia, and emphysema are diseases of what system?
A. pulmonary
B. digestive
C. reproductive
D. respiratory
Answer:
|
D
|
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|
The “knee-jerk" motion that people involuntarily perform after being struck in the knee in a certain way is an example of what kind of behavior?
A. reflex
B. reaction
C. spasm
D. sensor
Answer:
|
A
|
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|
What are tiny, hair like projections?
A. spinicles
B. actin
C. cilia
D. fuzz
Answer:
|
C
|
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|
How long does it take for the earth to make a complete rotation of its axis?
A. 24 hours
B. one year
C. 24.25 hours
D. one month
Answer:
|
A
|
sciq
|
Glaciers have been melting since what period?
A. pleistocene ice age
B. industrial age
C. stone age
D. bronze age
Answer:
|
A
|
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|
The transmission electron micrograph shows the cell walls where two cells do what?
A. disappear
B. reproduce
C. split apart
D. come together
Answer:
|
D
|
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|
What form does water take on the planet mars?
A. liquid
B. plasma
C. ice
D. gas
Answer:
|
C
|
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|
The simplest system is that of contractile vacuoles present in what?
A. crystals
B. microorganisms
C. parasites
D. macroorganisms
Answer:
|
B
|
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|
Water's very polar compound causes most solutes to do what?
A. gel
B. dissolve
C. repel
D. combine
Answer:
|
B
|
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|
Which plant group has vascular tissue, seeds, and flowers?
A. angiosperms
B. fungi
C. spores
D. microbes
Answer:
|
A
|
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|
The point in front of a mirror where the reflected rays intersect is known as what?
A. reflective point
B. focal point
C. boundary point
D. periodic point
Answer:
|
B
|
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|
Any unused energy in food, whether it comes from carbohydrates, proteins, or lipids, is stored in the body where?
A. fat
B. kidneys
C. bones
D. spleen
Answer:
|
A
|
sciq
|
What helps determine the concentration of a species in a solution?
A. qualitative analysis
B. technical analysis
C. fundamental analysis
D. quantitative analysis
Answer:
|
D
|
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|
In order to survive and maintain what state, an organism must quickly adapt to changing environmental conditions?
A. acclimatization
B. ketosis
C. homeostasis
D. regulation
Answer:
|
C
|
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|
What crust is thinner and denser than continental crust?
A. oceanic
B. coastal
C. land
D. asteroid
Answer:
|
A
|
sciq
|
What are the antibodies an animal produces after exposure to a microbial antigen?
A. chimeric
B. isolated
C. monoclonal
D. polyclonal
Answer:
|
D
|
sciq
|
How does heat travel from the sun to the earth?
A. thermal radiation from the sun
B. through light waves
C. secondary radiation from the sun
D. through sound waves
Answer:
|
A
|
sciq
|
What were the first life forms found on earth similar to?
A. ferns
B. mold
C. bacteria
D. viruses
Answer:
|
C
|
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|
Steel, bronze, and brass are examples of what?
A. compounds
B. oxides
C. chemicals
D. alloys
Answer:
|
D
|
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|
A pacemaker uses electrical shocks to stimulate the what to beat properly?
A. brain
B. pancreas
C. liver
D. heart
Answer:
|
D
|
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|
What is the cloud of brown dust-like power that escapes when a puffball fungus is touched?
A. seeds
B. ions
C. spores
D. pollon
Answer:
|
C
|
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|
What are the cone-like structures that contain sporangia called?
A. gametes
B. strobili
C. contrail
D. medulla
Answer:
|
B
|
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|
What are considered to be the smallest particles of matter?
A. cells
B. ions
C. atoms
D. molecules
Answer:
|
C
|
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|
The mechanics of dynein-based bending involve a process that resembles what?
A. running
B. standing
C. jumping
D. walking
Answer:
|
D
|
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|
What type of creature is a scallop?
A. mollusk
B. vertabrate
C. algae
D. insect
Answer:
|
A
|
sciq
|
The risk of what is raised by overexposure to the sun?
A. particle cancer
B. skin cancer
C. brain cancer
D. flux cancer
Answer:
|
B
|
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|
Which artery enters the cranium through the carotid canal in the temporal bone?
A. venal artery
B. external carotid
C. internal carotid artery
D. atrial artery
Answer:
|
C
|
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|
How are aquatic biomes often classified?
A. amount of life
B. amount of light
C. amount of salt
D. depth
Answer:
|
C
|
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|
What is the most abundant type of biological entity on the earth?
A. viruses
B. insects
C. reptiles
D. bacteria
Answer:
|
A
|
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|
What is the most diverse and abundant group of organisms on earth, numbering in the millions of trillions?
A. pathogens
B. viruses
C. pests
D. bacteria
Answer:
|
D
|
sciq
|
What kind of hormones are secreted by organs classified as gonads?
A. growth hormones
B. sex hormones
C. cortisol hormones
D. anterior hormones
Answer:
|
B
|
sciq
|
An oxy-acetylene torch is an effective way to cut what?
A. wood
B. plastic
C. coal
D. metal
Answer:
|
D
|
sciq
|
What are the infoldings of the inner membrane called?
A. ceranae
B. lineage
C. brickle
D. cristae
Answer:
|
D
|
sciq
|
A channel protein is an example of what type of protein?
A. choice proteins
B. hemoglobin protein
C. component proteins
D. transport proteins
Answer:
|
D
|
sciq
|
Eight of the hottest years on record have occurred since what year?
A. 1997
B. 1998
C. 1991
D. 2002
Answer:
|
B
|
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|
Average acceleration is the rate of change of what?
A. velocity
B. displacement
C. direction
D. speed
Answer:
|
A
|
sciq
|
What is studied to understand gene expression patterns in cells?
A. rna
B. dna
C. mutations
D. protein
Answer:
|
A
|
sciq
|
Ribosomes are produced in the nucleolus, and then transported to the what?
A. cytoskeleton
B. cytoplasm
C. cerebellum
D. nucleus
Answer:
|
B
|
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|
Ecosystem dynamics include more than the flow of energy and recycling of matter. ecosystems are also dynamic because they?
A. recreate exactly alike
B. change through time
C. stay the same
D. never move
Answer:
|
B
|
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|
Muscle contraction requires repeated cycles of binding and what?
A. push
B. lunging
C. twisting
D. release
Answer:
|
D
|
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|
An important chemical compound, which supplies living things with the energy they need to survive, is composed of carbon, oxygen and atoms of what other element?
A. magnesium
B. calcium
C. nitrogen
D. hydrogen
Answer:
|
D
|
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|
What are the glands that secrete milk in a woman's breasts?
A. mammary glands
B. lactic acids
C. primordial glands
D. pituitary glands
Answer:
|
A
|
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|
Like a thick cap covering the brain, the dura mater is a tough outer covering. the name comes from the latin for?
A. tough mother
B. back mother
C. protecting mother
D. difficult mother
Answer:
|
A
|
sciq
|
Which organisms get their energy source and carbon source from organic sources?
A. ectomorphs
B. chemoheterotrophs
C. sporozoans
D. herbivores
Answer:
|
B
|
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|
What natural disaster is california most linked with?
A. hurricanes
B. earthquakes
C. volcanoes
D. fires
Answer:
|
B
|
sciq
|
Small crustaceans exchange gases across thin areas of the cuticle; larger species have what to accomplish this?
A. gills
B. pores
C. noses
D. lungs
Answer:
|
A
|
sciq
|
The superior vena cava and the inferior vena cava are veins that return blood lacking what to the heart?
A. carbon dioxide
B. hemoglobin
C. oxygen
D. nitrogen
Answer:
|
C
|
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|
There are only four possible bases that make up each dna nucleotide: adenine, guanine, thymine, and?
A. taurine
B. guarine
C. phenylalanine
D. cytosine
Answer:
|
D
|
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|
What affects the boiling point of water?
A. external pressure
B. internal pressure
C. latter pressure
D. heat source
Answer:
|
A
|
sciq
|
The average length of a woman’s menstrual cycle is what?
A. 19 days
B. 5 days
C. 28 days
D. 16 days
Answer:
|
C
|
sciq
|
Water leaves ponds and lakes through evaporation and also as what?
A. inflow
B. influx
C. outflow
D. mid flow
Answer:
|
C
|
sciq
|
What is a biochemical compound that is a chain of amino acids called?
A. DNA
B. hormones
C. lipids
D. proteins
Answer:
|
D
|
sciq
|
Each what is made of two identical sister chromatids?
A. helix
B. gene
C. genome
D. chromosome
Answer:
|
D
|
sciq
|
Amino groups are found within amino acids, nicknamed the building blocks of what?
A. protons
B. lipids
C. carbohydrates
D. proteins
Answer:
|
D
|
sciq
|
What is the name of earth’s only natural satellite?
A. venus
B. moon
C. sun
D. titan
Answer:
|
B
|
sciq
|
Which is the lightest of the widely used structural metals?
A. Metal
B. magnesium
C. calcium
D. potassium
Answer:
|
B
|
sciq
|
When lava flows over a large area and cools, it creates a large, flat surface of what type of rock?
A. tidal
B. sedimentary
C. metamorphic
D. igneous
Answer:
|
D
|
sciq
|
Examples of what process are evident in many biological systems because cells are surrounded by semipermeable membranes?
A. osmosis
B. apoptosis
C. photosynthesis
D. reproduction
Answer:
|
A
|
sciq
|
What does cartilage lack compared to bones, making it softer and less rigid?
A. protein
B. magnesium
C. calcium
D. potassium
Answer:
|
C
|
sciq
|
What three forms does frozen precipitation take?
A. hail, wind, typhoon
B. vapor, fog, ice
C. snow, sleet, freezing rain
D. blizzard, frost, fog
Answer:
|
C
|
sciq
|
What is a stream of moving water that flows through the ocean?
A. waterfall
B. tidal wave
C. current
D. creek
Answer:
|
C
|
sciq
|
The elbow is an example of a what type of joint?
A. frame joint
B. toe joint
C. pipe joint
D. hinge joint
Answer:
|
D
|
sciq
|
The first leaves of most ferns appear curled up into what?
A. nanotubes
B. fiddleheads
C. volatiles
D. petals
Answer:
|
B
|
sciq
|
Electrophiles have a strong tendency to react with what?
A. acids
B. resistors
C. neutrons
D. nucleophiles
Answer:
|
D
|
sciq
|
What layered form of carbon is used as a lubricant and in pencils?
A. graphite
B. copper
C. lead
D. carbonite
Answer:
|
A
|
sciq
|
What kind of solids have particles that are arranged in a regular repeating pattern?
A. metabolic solids
B. carbon-based solids
C. salts
D. crystalline solids
Answer:
|
D
|
sciq
|
During what in the small intestine do rings of smooth muscle repeatedly contract and then relax?
A. contraction
B. compression
C. segmentation
D. mitosis
Answer:
|
C
|
sciq
|
Acetyl-coa is formed from the breakdown of carbohydrates, lipids, and what else?
A. acids
B. hydrocarbons
C. hormones
D. proteins
Answer:
|
D
|
sciq
|
Juvenile hormone modulates the activity of what?
A. growth
B. estrogen
C. ecdysteroid
D. reproduction
Answer:
|
C
|
sciq
|
What causes the red color of laterite soils?
A. erosion
B. iron oxides
C. oxygen
D. toxins
Answer:
|
B
|
sciq
|
The scientific process of collecting data outside the lab (in the "wild") is known as what kind of work?
A. track work
B. experimentation
C. scientific investigation
D. field work
Answer:
|
D
|
sciq
|
Red blood cells, white blood cells, platelets, and plasma are all components of what fluid?
A. blood
B. heart
C. Vessals
D. brain
Answer:
|
A
|
sciq
|
Who created the idea of an evolutionary tree to represent the relationships between different species and their common ancestors?
A. Scopes
B. Isaac Newton
C. charles darwin
D. Carl Sagan
Answer:
|
C
|
sciq
|
What organs absorb water and nutrients from the soil?
A. flowers
B. leaves
C. roots
D. buds
Answer:
|
C
|
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|
What does magma that cools underground form?
A. chambers
B. new crust
C. instrusions
D. fluctuations
Answer:
|
C
|
sciq
|
Which season is moist, causing the most thunderstorms?
A. winter
B. spring
C. autumn
D. summer
Answer:
|
D
|
sciq
|
What are the two hormones primarily responsible for maintaining homeostasis of blood glucose levels?
A. insulin and glucagon
B. anabolic and metabolic
C. dopamine and melanin
D. insulin and estrogen
Answer:
|
A
|
sciq
|
What important process takes place in specialized tissue inside plant leaves?
A. mitosis
B. reproduction
C. pollination
D. photosynthesis
Answer:
|
D
|
sciq
|
What type of plants were the first to evolve?
A. nonvascular
B. kilocalorie
C. cocklebur
D. vascular
Answer:
|
A
|
sciq
|
In multicellular organisms, specialized cells may be organized into what, which in turn may be organized into organs?
A. muscles
B. blood cells
C. tissues
D. nutrients
Answer:
|
C
|
sciq
|
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