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What is a sac filled with fluid or other material?
A. a lesion
B. Golgi apparatus
C. a cyst
D. a receptacle
Answer: | C |
What is released during an enthalpy reaction?
A. sound
B. precipitation
C. gold
D. heat
Answer: | D |
Solutions of ionic compounds and melted ionic compounds conduct what?
A. radiation
B. light
C. sound waves
D. electricity
Answer: | D |
Quantum mechanics involves the study of material at what level?
A. physical
B. chemical
C. atomic
D. cellular
Answer: | C |
What is the name of muscular blood vessels that carry blood away from the heart?
A. Veins
B. Aorta
C. tubes
D. arteries
Answer: | D |
He mass spectrometer measures the percent abundance of different what?
A. Proteins
B. organisms
C. isotopes
D. reactions
Answer: | C |
For what kind of animal is communication essential?
A. social animals
B. new born animals
C. anti-social animals
D. migrating animals
Answer: | A |
The wavelength of a wave is the distance between corresponding points on what?
A. spectrum
B. adjacent waves
C. basic waves
D. distant waves
Answer: | B |
Sandblasting a surface exemplifies what form of erosion?
A. water
B. abrasion
C. glacial
D. wind
Answer: | B |
How do fungus-like protists such as slime molds reproduce?
A. photosynthesis
B. sexually
C. with spores
D. asexually
Answer: | C |
Exchange occurs directly with the external environment in what type of organisms?
A. cell clusters
B. multicellular organisms
C. unicellular organisms
D. hematopoietic organisms
Answer: | C |
Which part of a neuron contains the nucleus and most of the major organelles?
A. simple body
B. retinal body
C. cell body
D. organ body
Answer: | C |
The oceans affect earth’s atmosphere and influence its what?
A. mountains
B. earthquakes
C. volcanoes
D. climate
Answer: | D |
What are surrounded by a cell wall consisting of peptidoglycan?
A. bacteria
B. amoeba
C. viruses
D. protozoa
Answer: | A |
Snake venom may join the class of drugs collectively known as thrombolytic agents, which can help speed up the degradation of an abnormal what?
A. clot
B. brain
C. bone
D. bleed
Answer: | A |
Thousands of receptor cells that detect the sex attractant equip each filament of what structure?
A. molecule
B. optic nerve
C. flagella
D. antenna
Answer: | D |
All solutions contain at least how many substances?
A. four
B. two
C. one
D. three
Answer: | B |
Life probably began where?
A. oceans
B. the Sun
C. rocks
D. caves
Answer: | A |
An enzyme is an organic catalyst produced by what?
A. DNA
B. living cell
C. amino acid
D. the liver
Answer: | B |
Gasoline is derived from which other liquid?
A. carbon
B. oil
C. liquid propane
D. water
Answer: | B |
What is the disease in which cells grow out of control and form abnormal masses?
A. HIV
B. cancer
C. bronchitis
D. diabetes
Answer: | B |
What travels at a rate of 300,000 kilometers per second, or nearly instantaneously?
A. gravity
B. air
C. light
D. sound
Answer: | C |
When atomic orbitals hybridize, the valence electrons occupy these?
A. newly developed orbits
B. newly created elements
C. expanded pathways
D. newly created orbitals
Answer: | D |
Roundworms feed on various things, one of them being decaying organic matter. doing this, they play an important role in what famous cycle?
A. life cycle
B. water cycle
C. carbon cycle
D. soul cycle
Answer: | C |
In preparation for phagocytosis, a portion of the inward-facing surface of the plasma membrane becomes coated with a protein called clathrin, which stabilizes this section of what?
A. particles
B. mitochondria
C. membrane
D. nuclei
Answer: | C |
What is the main form of energy storage in plants?
A. dioxide
B. nitrogen
C. liquid
D. starch
Answer: | D |
Something supplied by nature that helps support life, including ecosystems as well as minerals and fossil fuels, is called a what?
A. fluid resource
B. artificial resource
C. visible resource
D. natural resource
Answer: | D |
Initial substances are called reactants, and the final substances are called what?
A. products
B. imports
C. reactors
D. exports
Answer: | A |
What were the electrons initially called?
A. cathode rays
B. gamma rays
C. plasma rays
D. polymer rays
Answer: | A |
What is the type of energy that involves movement?
A. light energy
B. thermal energy
C. mechanical energy
D. molecular energy
Answer: | C |
What do sharks use to secrete salt to assist in osmoregulation?
A. bladder gland
B. ceramic gland
C. rectal gland
D. blood gland
Answer: | C |
Why do viruses not belong to any domain of life?
A. they are nonliving
B. they are mortal
C. they are too mature
D. they are immortal
Answer: | A |
What is a change in the sequence of bases in dna or rna called?
A. evolution
B. mutation
C. radiation
D. infection
Answer: | B |
Metallic solids are composed entirely of which atoms?
A. metals
B. organic
C. metallic
D. toxic
Answer: | C |
What compound gives tarnished copper it's green color?
A. bronze
B. copper carbonate
C. zinc
D. brass
Answer: | B |
As the population grows, competition for food does what?
A. stagnates
B. decreases
C. stays the same
D. grows
Answer: | D |
What is the property by which water molecules stick together?
A. plasticity
B. tension
C. cohesion
D. vitality
Answer: | C |
What is the main sex hormone in males called?
A. methane
B. estrogen
C. caffeine
D. testosterone
Answer: | D |
What is the name of the tube that joins the mouth to the digestive and respiratory tracts?
A. esophagus
B. fallopian tube
C. pharynx
D. larynx
Answer: | C |
Unlike bryophyte and fern spores (which are haploid cells dependent on moisture for rapid development of gametophytes), seeds contain a diploid embryo that will germinate into what?
A. ovary
B. sporophyte
C. gametophyte
D. sperm
Answer: | B |
Limestone is insoluble in water, so what can dissolve it?
A. acid
B. oxygen
C. dioxide
D. calcium
Answer: | A |
Monatomic ions have an oxidation number equal to their what?
A. size
B. length
C. charge
D. cost
Answer: | C |
Some flatworms are free-living carnivores that live mainly in which type of habitats?
A. aquatic
B. freshwater
C. Desert
D. Deciduous forest
Answer: | A |
Characterized by a short lifespan, what begin with production in the bone marrow under the influence of csfs and interleukins?
A. solutes
B. pathogens
C. leukocytes
D. erythrocytes
Answer: | C |
What force is perpendicular to velocity and causes uniform circular motion?
A. centripetal force
B. tangential force
C. circular friction
D. centripetal torque
Answer: | A |
What are physical properties that do not depend on the substance present called?
A. extensive properties
B. multilateral properties
C. internal properties
D. intensive properties
Answer: | D |
What does the secretion of the hormone cholecystokinin stimulate the release of?
A. insulin and pepsin
B. pancreatic juices, bile
C. urea
D. sweat, saliva
Answer: | B |
What term is used to describe the electrostatic process used by most copy machines?
A. xerography
B. electrography
C. microphotography
D. titanomachy
Answer: | A |
Symptoms of viral diseases result from what kind of response to a virus?
A. mutation
B. pathogenic
C. infection
D. immune
Answer: | D |
The most common carbon atoms have six protons and six neutrons in their what?
A. neuron
B. ribosomes
C. nuclei
D. membrane
Answer: | C |
What type of organisms have internal clocks that regulate cyclic processes?
A. fungi
B. protozoa
C. eukaryotic
D. endogenous
Answer: | C |
How often does condensation occur in your cells?
A. never
B. daily
C. weekly
D. constantly
Answer: | D |
Overharvesting is a serious threat particularly to which species?
A. amphibious species
B. terrestrial species
C. aquatic species
D. aerial species
Answer: | C |
What are the cells that break down inorganic molecules to supply energy for the cell, and use carbon dioxide as a carbon source?
A. chemoautotrophs
B. Sediments
C. fluctuations
D. staurikosaurus
Answer: | A |
Each type of electromagnetic radiation has a characteristic range of wavelengths. the longer the wavelength (or the more stretched out it appears), the less energy is carried. short, tight waves carry what?
A. sound
B. heat
C. kinetic energy
D. most energy
Answer: | D |
What are clouds on earth made of?
A. ozone
B. rain
C. carbon dioxide gas
D. water vapor
Answer: | D |
What do extensive properties depend on the amount of?
A. sample temperature
B. independent variables
C. matter in a sample
D. experimental controls
Answer: | C |
What is the term for the rate at which velocity changes?
A. acceleration
B. compression
C. transmission
D. stability
Answer: | A |
What determines which codon in the mrna the trna will bind to?
A. anticodon
B. gene
C. amnion
D. exon
Answer: | A |
What is the term for the complete set of genes and alleles within a population?
A. the biodiversity pool
B. the ancestral pool
C. the gene pool
D. the chromosomal pool
Answer: | C |
What unit of pressure is named for the scientist whose discoveries about pressure in fluids led to a law of the same name?
A. newton
B. ohm
C. pascal
D. joule
Answer: | C |
Oxygen and what are required for rust to form?
A. carbon
B. water
C. air
D. pressure
Answer: | B |
What is the process called in which a magnet loses its magnetic properties?
A. diffusion
B. polarization
C. demagnetization
D. vectorization
Answer: | C |
The earliest animals were which kind of invertebrates?
A. aquatic
B. dinosaurs
C. mammals
D. insects
Answer: | A |
A lake is an example of what type of biome?
A. natural biome
B. organic biome
C. freshwater biome
D. wet biome
Answer: | C |
What kinds of waves are composed of various oscillating electric and magnetic fields?
A. electromagnetic
B. seismic
C. tidal
D. elastic
Answer: | A |
When is the sun directly over the equator?
A. Midsummer
B. Fall
C. equinox
D. Winter
Answer: | C |
What does the base of a nucleotide within dna consist of?
A. ribosomes
B. nitrogen
C. protein
D. hydrogen
Answer: | B |
Which bones are flat and triangular and located at the back of the pectoral girdle?
A. cochlea
B. laminae
C. vertebrae
D. scapulae
Answer: | D |
What always has the same elements in the same ratio?
A. mitochondria
B. compound
C. component
D. cell
Answer: | B |
Prior to ovulation, ovarian steroid hormones stimulate the uterus to prepare for support of what?
A. fetus
B. fertilization
C. embryo
D. childbirth
Answer: | C |
All polar compounds contain what type of bonds?
A. weak
B. polar
C. balanced
D. strong
Answer: | B |
What often occurs on steep slopes in dry climates?
A. landslides
B. earthquakes
C. volcanoes
D. tsunamis
Answer: | A |
What kind of organisms have many different types of specialized cells with particular jobs?
A. intricate
B. monocellular
C. multicellular
D. crude
Answer: | C |
Part of the scientific process, these are statistical probabilities rather than certainties?
A. results
B. Hypothesis
C. assumptions
D. predictions
Answer: | D |
Ecology is a major branch of what higher-level "classification" of science?
A. chemistry
B. geology
C. physics
D. biology
Answer: | D |
What is necessary for organisms to survive in the deepest parts of the ocean?
A. adaptations
B. mutation
C. competition
D. reflexes
Answer: | A |
What is the process of larva becoming an adult called?
A. metamorphosis
B. parthenogenesis
C. evolution
D. synthesis
Answer: | A |
Capillaries rejoin to form venules, which convey blood to what?
A. extremities
B. glands
C. veins
D. arteries
Answer: | C |
Although it is not vital to humans, calcitonin is important for calcium homeostasis in adults of some species in what group characterized by backbones?
A. vertebrates
B. reptiles
C. mammals
D. invertebrates
Answer: | A |
What force holds planets in their orbits?
A. Big Bang
B. gravity
C. magnetism
D. centrifuge
Answer: | B |
The nature of what gives metals the properties of being ductile and malleable?
A. liquid bonds
B. magneticism
C. metallic bonds
D. titanium bonds
Answer: | C |
What are the special compartments that are surrounded by membranes inside eukaryotic cells called?
A. chloroplasts
B. ribosomes
C. organelles
D. vacuoles
Answer: | C |
Molds and casts usually form in which type of rock?
A. crystalline
B. igneous
C. metamorphic
D. sedimentary
Answer: | D |
What is a hole that is dug or drilled through the ground down to an aquifer called?
A. canal
B. ditch
C. moat
D. well
Answer: | D |
When is a moving car said to be in dynamic equilibrium?
A. at homeostasis
B. zero net force
C. at rest
D. when accelerating
Answer: | B |
Every chemical reaction between molecules involves breaking and forming of what?
A. atomic pathways
B. bonds
C. orbits
D. ions
Answer: | B |
The mass percentage of a solution component is defined as the ratio of the component’s mass to ________?
A. enough ’ s mass
B. liquid's mass
C. solution ’ s mass
D. solvent's mass
Answer: | C |
Harmful instances of what can result in errors in protein sequence that yield non-functional proteins?
A. radiation
B. mutation
C. infection
D. bioaccumulation
Answer: | B |
When dissolved in water, the base sodium hydroxide (naoh) produces sodium ions with what charge?
A. negative
B. similar
C. positive
D. constant
Answer: | C |
What precious resource allows us to grow food as well as materials we turn into clothing and medicine?
A. mercury
B. gasoline
C. soil
D. petroleum
Answer: | C |
In what part of the body do escherichia coli bacteria live?
A. your intestines
B. your brain
C. your urethra
D. your kidneys
Answer: | A |
Which state of matter has an intermediate level of entropy between solid and gas?
A. liquid
B. plasma
C. water
D. metal
Answer: | A |
In recent years, it has been hypothesized that molecules in the environment also act as?
A. homeostasis disruptors
B. pathogens
C. endocrine disruptors
D. catalysts
Answer: | C |
What is the diversity of living things called?
A. ecosystem
B. biodiversity
C. adaptation
D. habitat
Answer: | B |
All lipids have two distinct domains, a hydrophobic and a what?
A. covalent
B. hydroceptive
C. hydroaversive
D. hydrophilic
Answer: | D |
Oxytocin, which stimulates the contractions of labor, is a type of what?
A. steroid
B. hormone
C. metabolite
D. inhibitor
Answer: | B |
When represented by a single letter dominant alleles are represented by what case letter?
A. uppercase
B. lowercase
C. mixed letters
D. numeral
Answer: | A |
What do loess deposits form?
A. diagonal cliffs
B. vertical cliffs
C. rotational cliffs
D. horizontal cliffs
Answer: | B |
Electrical messages are carried by chemicals called what?
A. Biotoxins
B. amino acids
C. neurotransmitters
D. receptors
Answer: | C |
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