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|---|---|---|
null | Question: What is the most widely accepted theory explaining how muscle fibers contract?
Options:
A. sliding pigment theoery
B. sliding carbon theory
C. sliding filament theory
D. sliding tritium theory
Answer: | C |
null | Question: What is defined as the amount of force acting on a given area?
Options:
A. pressure
B. power
C. resistance
D. energy
Answer: | A |
null | Question: By impacting plant species and the animals they support, destruction of habitat threatens what event?
Options:
A. extinction
B. mutation
C. depletion
D. overpopulation
Answer: | A |
null | Question: What is a group of lions called?
Options:
A. pride
B. coven
C. herd
D. bevy
Answer: | A |
null | Question: What are the smallest type of blood vessels?
Options:
A. neurons
B. capillaries
C. viens
D. arteries
Answer: | B |
null | Question: A fundamental particle of matter, protons and neutrons are made of these?
Options:
A. atoms
B. neutrinos
C. particles
D. quarks
Answer: | D |
null | Question: The external female reproductive structures are referred to collectively as what?
Options:
A. the uterus
B. the vulva
C. the cervix
D. the Fallopian tube
Answer: | B |
null | Question: Ginkgo trees are gymnosperms with broad?
Options:
A. roots
B. leaves
C. trunks
D. fruits
Answer: | B |
null | Question: A venule is an extremely small vein, generally 8–100 micrometers in diameter. postcapillary venules join multiple capillaries exiting from a capillary bed. multiple venules join to form what?
Options:
A. arteries
B. veins
C. clots
D. glands
Answer: | B |
null | Question: What is the first cell of a new organism?
Options:
A. egg
B. seed
C. zygote
D. nucleus
Answer: | C |
null | Question: A current in a circuit needs a complete what?
Options:
A. cause
B. path
C. speed
D. stream
Answer: | B |
null | Question: What 3 types of friction occur between solid surfaces?
Options:
A. static,desending,sliding
B. static , ascending , rolling
C. static , arching , rolling
D. static, sliding, rolling
Answer: | D |
null | Question: What part of the sperm contains the nucleus?
Options:
A. tail
B. head
C. body
D. nucleus
Answer: | B |
null | Question: The most common carbon atoms have six protons and six neutrons in their what?
Options:
A. nuclei
B. neuron
C. membrane
D. ribosomes
Answer: | A |
null | Question: What is the term for a close relationship between two species in which at least one species benefits.
Options:
A. endosymbiosis
B. extosis
C. candiasis
D. symbiosis
Answer: | D |
null | Question: Solar and wind are still expensive compared to what?
Options:
A. coal fuels
B. batteries
C. electricity
D. fossil fuels
Answer: | D |
null | Question: What are the three classifications of elements?
Options:
A. alkaloids, metaloids, and non-metals
B. metals, metaloids, and alkaloids
C. metals, non-metals and alkaloids
D. metals, non-metals and metaloids
Answer: | D |
null | Question: Some women experience cramping and pain before and during what monthly cycle?
Options:
A. deformation
B. reproduction
C. inflammation
D. menstruation
Answer: | D |
null | Question: Which cycle tracks the flow of nitrogen through an ecosystem?
Options:
A. life cycle
B. water cycle
C. nitrogen cycle
D. nitrogen reaction
Answer: | C |
null | Question: What type of waves carry energy through matter or space as vibrating electric and magnetic fields?
Options:
A. sound waves
B. mechanical waves
C. light waves
D. electromagnetic waves
Answer: | D |
null | Question: Another interesting phenomenon associated with polarized light is the ability of some crystals to split an unpolarized beam of light into two. such crystals are said to be this?
Options:
A. opaque matter
B. reflective
C. phosphorescent
D. birefringent
Answer: | D |
null | Question: What structures formed of twisted actin chains are found in almost every cell, and are numerous in muscle cells and cells that move by changing shape?
Options:
A. microfilaments
B. RNA
C. vesicles
D. DNA
Answer: | A |
null | Question: What is the union of the cytoplasms of two parent mycelia known as?
Options:
A. spirogyra
B. plasmogamy
C. plasmology
D. xerophyte
Answer: | B |
null | Question: Asexual reproduction in plants is typically an extension of the capacity for what?
Options:
A. substrate growth
B. blooming growth
C. indeterminate growth
D. extracellular growth
Answer: | C |
null | Question: Approximately how much larger is the radius of an atom than that of its nucleus?
Options:
A. 1000 times
B. 1 times
C. 100 times
D. 10 times
Answer: | D |
null | Question: What kind of compounds are named for their positive metal ion first, followed by their negative nonmetal ion?
Options:
A. horizontal compounds
B. magnetic compounds
C. magnetic compounds
D. ionic compounds
Answer: | D |
null | Question: What bond is the force of attraction that holds together positive and negative ions?
Options:
A. Electric
B. Protonic
C. magnetic
D. ionic
Answer: | D |
null | Question: Velocity affects what type of energy more than mass does?
Options:
A. magnetic energy
B. kinetic energy
C. mechanical energy
D. harmonic energy
Answer: | B |
null | Question: During adolescence, what causes most of the changes associated with puberty?
Options:
A. estrogen
B. testosterone
C. nicotine
D. methane
Answer: | B |
null | Question: A group of living things and their environment is called what?
Options:
A. community
B. ecosystem
C. biome
D. population
Answer: | B |
null | Question: The spin quantum number describes the spin for a given what?
Options:
A. ion
B. element
C. electron
D. proton
Answer: | C |
null | Question: What is the term for the muscular duct through which sperm are propelled?
Options:
A. the glans deferens
B. the vas deferens
C. the glarus deferens
D. the västerås deferens
Answer: | B |
null | Question: What type of cell has a singular chromosome, no nucleus, and few other organelles?
Options:
A. prokaryotic
B. monophyletic
C. trophic
D. graphic
Answer: | A |
null | Question: Breasts are considered accessory organs of what body system?
Options:
A. nervous system
B. lymphatic system
C. digestive system
D. female reproductive system
Answer: | D |
null | Question: When volume does not change, temperature is proportional to what other property?
Options:
A. pressure
B. resistance
C. Length
D. Density
Answer: | A |
null | Question: Deposition refers to when a gas changes to what state?
Options:
A. half liquid half gas
B. liquid
C. solid
D. plasma
Answer: | C |
null | Question: What blood pressure reading measures the pressure in the vessels between heartbeats?
Options:
A. plasma
B. systolic
C. diastolic
D. metabolic
Answer: | C |
null | Question: How do many mammals control their body temperature?
Options:
A. homeostasis
B. dieting
C. sweating
D. itching
Answer: | C |
null | Question: Beryllium, magnesium, calcium, strontium, and barium are classified as what type of metals?
Options:
A. alkaline earth metals
B. alkaline support metals
C. acid earth metals
D. alkaline aligned metals
Answer: | A |
null | Question: The radial artery and which artery parallel their namesake bones, giving off smaller branches until they reach the wrist, or carpal region?
Options:
A. ulnar
B. biceps
C. triceps
D. humerus
Answer: | A |
null | Question: What can lead to a loss of genetic variation within populations?
Options:
A. adaptation
B. migration
C. natural selection
D. genetic drift
Answer: | D |
null | Question: An organism that carries pathogens from one individual to another is called what?
Options:
A. germ cell
B. virus
C. host
D. vector
Answer: | D |
null | Question: What is the predicted year that as many as half of all remaining species could go extinct?
Options:
A. 3000
B. 2040
C. 2050
D. 2020
Answer: | C |
null | Question: Many adults and some children suffer from a deficiency of lactase. these individuals are said to be lactose intolerant because they cannot digest the lactose found in what?
Options:
A. meat
B. milk
C. fruit
D. peanuts
Answer: | B |
null | Question: What kind of cleavage do mammalian eggs exhibit?
Options:
A. spicule
B. holoblastic
C. Meroblastic
D. cocklebur
Answer: | B |
null | Question: Mutations that lead to cancer usually occur in genes that control the cell cycle. these include tumor-suppressor genes and what?
Options:
A. proto-oncogenes
B. Darkness Oncogenes
C. apparition - oncogenes
D. extinction - oncogenes
Answer: | A |
null | Question: When we move down a group of elements on the periodic table, what happens to their electronegativity?
Options:
A. it stays the same
B. it increases
C. it doubles
D. it decreases
Answer: | D |
null | Question: Although it is not vital to humans, calcitonin is important for calcium homeostasis in adults of some species in what group characterized by backbones?
Options:
A. reptiles
B. invertebrates
C. vertebrates
D. mammals
Answer: | C |
null | Question: What are large collections of millions or billions of stars called?
Options:
A. galaxies
B. fragments
C. orbits
D. universe
Answer: | A |
null | Question: A group of genetically identical individuals is called what?
Options:
A. replicant
B. a clone
C. a man
D. brother
Answer: | B |
null | Question: How many chambers are in a reptiles heart?
Options:
A. five
B. two
C. three
D. ten
Answer: | C |
null | Question: The two parts of photosynthesis photosynthesis takes place in two stages: the light-dependent reactions and which cycle?
Options:
A. calvin cycle
B. colors cycle
C. klein cycle
D. dark cycle
Answer: | A |
null | Question: Name the missing type of light: ultraviolet, infrared, ___________.
Options:
A. distinct
B. predictable
C. visible
D. vertical
Answer: | C |
null | Question: Gymnosperms and angiosperms are types of _________ seed plants.
Options:
A. modern
B. heritage
C. genetic
D. extinct
Answer: | A |
null | Question: What are natural resources which can be replaced in a relatively short period called?
Options:
A. renewable resources
B. replaceable resources
C. solvent resources
D. materials resources
Answer: | A |
null | Question: What is secreted before ejaculation to neutralize acidic urine remaining in the urethra?
Options:
A. semen
B. sperm
C. pre-cum
D. clear mucus
Answer: | D |
null | Question: Glass breaking is an example of what type of change that doesn't affect the makeup of matter?
Options:
A. reversible
B. thermal
C. chemical
D. physical
Answer: | D |
null | Question: Why will water balloons launched into the air eventually burst?
Options:
A. friction
B. expansion
C. heat
D. momentum
Answer: | B |
null | Question: What is a reaction in which an atom or molecule is added to an unsaturated molecule, making a single product?
Options:
A. complete reaction
B. homeostasis
C. an addition reaction
D. single reaction
Answer: | C |
null | Question: What type of climates is malaria commonly found in?
Options:
A. arid and arctic
B. tropical and permafrost
C. tropic and arctic
D. tropical and subtropical
Answer: | D |
null | Question: A lens of what shape causes rays of light to diverge, or spread apart, as they pass through it?
Options:
A. elongated
B. flat
C. convex
D. concave
Answer: | D |
null | Question: Red blood cells don't have a nucleus. this allows them to do what?
Options:
A. carry more oxygen
B. be redder
C. move faster
D. heal faster
Answer: | A |
null | Question: In which supergroup are red algae and green algae included?
Options:
A. troglodyte
B. xerophyte
C. archaeplastida
D. spirogyra
Answer: | C |
null | Question: Organisms that obtain food from outside themselves (i.e. they don't make their own food) are known as what?
Options:
A. autotrophs
B. zygotes
C. heterotrophs
D. fungi
Answer: | C |
null | Question: What impact can plaque in an artery have on the flow of blood?
Options:
A. restriction
B. allergic reaction
C. increased flow
D. no effect
Answer: | A |
null | Question: Acids are the opposites of what?
Options:
A. bases
B. solids
C. gas
D. water
Answer: | A |
null | Question: After the film is developed, any unexposed silver bromide must be removed by a process called what?
Options:
A. fixing
B. sweeping
C. watering
D. washing
Answer: | A |
null | Question: Two plates may slide past each other in opposite directions, this is called what?
Options:
A. transform plate boundary
B. shearing plate boundary
C. earthquake
D. downstream plate boundary
Answer: | A |
null | Question: What term decribes the amount of time required for half of the original material to decay in an isotope?
Options:
A. half-life
B. life cycle
C. radioactive isotope
D. Geiger count
Answer: | A |
null | Question: In recent years, it has been hypothesized that molecules in the environment also act as?
Options:
A. catalysts
B. homeostasis disruptors
C. pathogens
D. endocrine disruptors
Answer: | D |
null | Question: What are the organized instructions within dna for making proteins called?
Options:
A. genomes
B. clones
C. genes
D. replicants
Answer: | C |
null | Question: The effect of acetylcholine in heart muscle is inhibitory rather than what?
Options:
A. neurotransmitter
B. olfactory
C. excitatory
D. exofactory
Answer: | C |
null | Question: What is a common name for the descriptive hypothesis that help to understand patterns of descent?
Options:
A. evolutionary trees
B. genetic trees
C. genetic order
D. gene mapping
Answer: | A |
null | Question: In a position-time graph, what does the slope of the line represent?
Options:
A. position
B. time
C. direction
D. velocity
Answer: | D |
null | Question: Speed, loudness, and pitch are properties of what?
Options:
A. light
B. colour
C. sound
D. metal
Answer: | C |
null | Question: What parts of a human possess the highest concentration of thermoreceptors?
Options:
A. face and hair
B. hand and ears
C. hands and feet
D. face and ears
Answer: | D |
null | Question: Down syndrome is caused by having three copies of what, a condition known as trisomy?
Options:
A. variation
B. DNA
C. chromosome
D. genome
Answer: | C |
null | Question: How many watts equals a horse power?
Options:
A. 904
B. 695
C. 745
D. 375
Answer: | C |
null | Question: What is defined as the mass per unit volume of a substance?
Options:
A. weight
B. diameter
C. height
D. density
Answer: | D |
null | Question: Name the white blood cells that can squeeze through capillary walls and swallow particles.
Options:
A. neutrophils
B. hemoglobin
C. platelets
D. lymphocytes
Answer: | A |
null | Question: What are the primary causes of bone fractures?
Options:
A. overuse
B. sideways impact or bending
C. spiral impact or bending
D. step impact or bending
Answer: | B |
null | Question: In genetics, what do you call characteristics that are passed from a parent to child?
Options:
A. traits
B. mutations
C. habits
D. similarities
Answer: | A |
null | Question: What type of tissue covers the outside of a plant in a single layer of cells called the epidermis?
Options:
A. mucous
B. anterior
C. dermal
D. dorsal
Answer: | C |
null | Question: Trichomoniasis is cause by what type of pathogen?
Options:
A. virus
B. bacteria
C. protozoa
D. worm
Answer: | C |
null | Question: What produces the centripetal force to keep the earth orbiting the sun?
Options:
A. heat
B. weight
C. gravity
D. motion
Answer: | C |
null | Question: What is the force of attraction between a positive metal ion and valence electrons?
Options:
A. galactic bond
B. metallic bond
C. covalent bond
D. liquid bond
Answer: | B |
null | Question: Angiosperm seed develops inside of what?
Options:
A. an ovary
B. fallopian tubes
C. the pancreas
D. a kidney
Answer: | A |
null | Question: What do you call an animal that feeds on other animals?
Options:
A. polyvore
B. carnivore
C. omnivore
D. herbivore
Answer: | B |
null | Question: What do you call the two ends of a magnet where the magnetic effect is strongest?
Options:
A. magnetos
B. opposites
C. plates
D. poles
Answer: | D |
null | Question: On a hot, dry day, plants close their stomata to conserve what?
Options:
A. sunlight
B. air
C. cold
D. water
Answer: | D |
null | Question: Small water bodies often fed by springs are called what?
Options:
A. oceans
B. puddles
C. ponds
D. rivers
Answer: | C |
null | Question: What type of air do plants take in and use?
Options:
A. liquid dioxide
B. carbon dioxide
C. oxygen
D. carbon
Answer: | B |
null | Question: What are the building blocks of peptides?
Options:
A. magnets
B. alkali
C. amino acids
D. rocks
Answer: | C |
null | Question: The gap between two dna fragments is sealed by what?
Options:
A. rna ligase
B. reductase
C. enzymes
D. by dna ligase
Answer: | D |
null | Question: What does the inside of all cells also contain?
Options:
A. chloroplasm
B. protein
C. chromosomes
D. cytosol
Answer: | D |
null | Question: A basic function of cells includes obtaining what from glucose?
Options:
A. proteins
B. food
C. energy
D. acids
Answer: | C |
null | Question: What sciences are the study of living organisms?
Options:
A. life sciences
B. earth sciences
C. physical sciences
D. social sciences
Answer: | A |
null | Question: What runs through the penis and opens to the outside at the tip of the penis?
Options:
A. fallopian tube
B. the urethra
C. prostate gland
D. vas deferens
Answer: | B |
null | Question: What is another name for a radioactive isotope?
Options:
A. xerophyte
B. nono particle
C. radiostope
D. kilocalorie
Answer: | C |
null | Question: In which way do particles of water move in deep water?
Options:
A. parabolas
B. ellipses
C. circles
D. currents
Answer: | C |
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