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null | Question: Wavelength and frequency are defined in the same way for electromagnetic waves as they are for which other waves?
Options:
A. gravitational
B. sonar
C. light
D. mechanical
Answer: | D |
null | Question: Regulation of endocrine depends on the hypothalmus and what other gland?
Options:
A. pituitary
B. adrenal
C. thyroid
D. salivary
Answer: | A |
null | Question: What is light with wavelengths shorter than visible light called?
Options:
A. weathering light
B. radio waves
C. ultraviolet light
D. infrared light
Answer: | C |
null | Question: What type of change is undergone when the physical properties of a substance are changed?
Options:
A. atmospheric
B. thermal
C. genetic
D. physical
Answer: | D |
null | Question: What is the only substance on earth that is present in all three states of matter?
Options:
A. water
B. air
C. mercury
D. carbon
Answer: | A |
null | Question: The appendicular skeleton is made up of all bones of the upper and lower what?
Options:
A. limbs
B. digestive tract
C. organs
D. hemispheres
Answer: | A |
null | Question: What causes cells to divide if cytokinins are added to it?
Options:
A. auxin
B. apoptosis
C. osmosis
D. hyptoxin
Answer: | A |
null | Question: Dna segments cross over to form what kind of chromosome?
Options:
A. recombinant
B. mutated
C. autosome
D. resistant
Answer: | A |
null | Question: What is the term for a natural situation which arises to physically divide organisms?
Options:
A. extinction
B. reproduction
C. assimilation
D. vicariance
Answer: | D |
null | Question: Which temperatures cause particles of reactants to have more energy?
Options:
A. lower
B. reducing
C. non-existant
D. higher
Answer: | D |
null | Question: How do cancer cells typically spread from one part of the body to another?
Options:
A. kidneys
B. bloodstream
C. liver
D. plasma
Answer: | B |
null | Question: What are the two layers of the skin?
Options:
A. sebaceous and salivary
B. epithelial and endometrial
C. dermis and epithelial
D. epidermis and dermis
Answer: | D |
null | Question: What is the purpose of bright colors on a flower's petals?
Options:
A. to attract pollinators
B. to distract predators
C. to absorb light
D. to attract a mate
Answer: | A |
null | Question: The two smallest carboxylic acids are formic acid and what else?
Options:
A. acetic acid
B. carbonates acid
C. ethylene acid
D. ascorbic acid
Answer: | A |
null | Question: Exothermic reactions, like all chemical reactions, require what to get started?
Options:
A. specific energy
B. membrane energy
C. surface energy
D. activation energy
Answer: | D |
null | Question: Ancient greeks mistook what simple sedentary animals for plants?
Options:
A. parasites
B. sponges
C. fungi
D. corals
Answer: | B |
null | Question: The use of mercury-based dental amalgam has gone under question in recent years because of concerns regarding what?
Options:
A. the oxygen
B. the expense
C. the variability
D. the toxicity
Answer: | D |
null | Question: Which viruses are being studied for cancer treatments?
Options:
A. oncolytic viruses
B. endophytic viruses
C. astringent viruses
D. osteophobic viruses
Answer: | A |
null | Question: What do all chemical sections need to get started?
Options:
A. work
B. speed
C. pressure
D. energy
Answer: | D |
null | Question: What type of young do scorpions produce?
Options:
A. live
B. identical
C. twins
D. guppies
Answer: | A |
null | Question: Some soil water can flow through easily. what kind of soil is this?
Options:
A. Stationary
B. dense
C. porous
D. permeable
Answer: | D |
null | Question: Where do birds store and moisten food that is waiting to be digested?
Options:
A. gullet
B. crop
C. tree
D. nest
Answer: | B |
null | Question: Ion pumps, the biological machines responsible for the selective transport of metal ions, are complex assemblies of what?
Options:
A. minerals
B. cells
C. proteins
D. acids
Answer: | C |
null | Question: What is responsible for many properties of covalent compounds, which have relatively low boiling points, cannot conduct electricity, and may not dissolve in water?
Options:
A. ionic charge
B. covalent bonds
C. atomic weight
D. accretion bonds
Answer: | B |
null | Question: The top 200 meters of water is called what zone?
Options:
A. the stratosphere
B. the subterranean zone
C. the biotic zone
D. the photic zone
Answer: | D |
null | Question: The recombination frequency is the percentage of recombinant flies in the total pool of what?
Options:
A. species
B. immigrants
C. offspring
D. samples
Answer: | C |
null | Question: Formic acid is found in the secretions of?
Options:
A. stomach acid
B. sweat glands
C. acid rain
D. stinging ants
Answer: | D |
null | Question: What type of craniates have backbones?
Options:
A. invertebrates
B. juveniles
C. vertebrates
D. larva
Answer: | C |
null | Question: What is the largest body in the solar system?
Options:
A. asteroids
B. earth
C. sun
D. planet
Answer: | C |
null | Question: A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into these?
Options:
A. infectious cells
B. germ cells
C. clones
D. specialized cells
Answer: | D |
null | Question: What is composed of two strands of nucleotides in a double-helical structure?
Options:
A. bacteria
B. RNA
C. molecule
D. dna
Answer: | D |
null | Question: Muscarinic receptors can cause both depolarization or hyperpolarization depending on the what?
Options:
A. gravity
B. strain
C. subtype
D. phenotype
Answer: | C |
null | Question: Which human body system controls the amount of water in the body and removes wastes?
Options:
A. digestive system
B. urinary system
C. mucous system
D. lymphatic system
Answer: | B |
null | Question: What type of feeders are earthworms?
Options:
A. middle
B. oil
C. deposit
D. top
Answer: | C |
null | Question: Each cell and every living thing requires what?
Options:
A. potassium
B. salt
C. calcium
D. energy
Answer: | D |
null | Question: The trade winds are nearest what?
Options:
A. poles
B. inland
C. equator
D. boundary plates
Answer: | C |
null | Question: What type of chemistry is the study of the composition of matter?
Options:
A. philosophical
B. reactive
C. symbolic
D. analytical
Answer: | D |
null | Question: Constriction and dilation allow the circulatory system to change the amount of blood flowing to which body parts?
Options:
A. muscles
B. arteries
C. tissues
D. organs
Answer: | D |
null | Question: Who proposed the theory of evolution by natural selection?
Options:
A. Linnaeus
B. Scopes
C. darwin
D. shaw
Answer: | C |
null | Question: What is a gram stain used to identify ?
Options:
A. radioactivity
B. different types of liquids
C. different types of bacteria
D. acids or bases
Answer: | C |
null | Question: The distance of stars is measured in what terms, meaning the light takes many thousands of years to reach us?
Options:
A. light years
B. light hours
C. light decades
D. light months
Answer: | A |
null | Question: Esters can be formed by heating carboxylic acids and alcohols in the presence of?
Options:
A. a nuclear catalyst
B. an oxygen catalyst
C. an carbon catalyst
D. an acid catalyst
Answer: | D |
null | Question: When a lower energy level is ______ electrons are added to the next higher energy level.
Options:
A. full
B. unbalanced
C. ready
D. empty
Answer: | A |
null | Question: What is the main difference between prokaryotic or eukaryotic cells ?
Options:
A. the presence of cell walls
B. the type of metabolic waste
C. the presence of a nucleus
D. the presence of a Golgi Apparatus
Answer: | C |
null | Question: What is the term for water that falls from clouds?
Options:
A. lightning
B. wind
C. precipitation
D. atmosphere
Answer: | C |
null | Question: What is the nest of cell an egg rests in called?
Options:
A. epidermis
B. follicle
C. pod
D. mitochondria
Answer: | B |
null | Question: What increases the size of a population's gene pool?
Options:
A. mutations
B. microbes
C. natural selection
D. mass extinction
Answer: | A |
null | Question: Regulation of hormone production hormone levels are primarily controlled through negative feedback, in which rising levels of a hormone inhibit its?
Options:
A. recent release
B. particular release
C. Limited release
D. further release
Answer: | D |
null | Question: What is the formation of organs from the germ layers called?
Options:
A. synaptogenesis
B. organogenesis
C. photosynthesis
D. biosynthesis
Answer: | B |
null | Question: What device is an electrochemical cell or series of cells that produces an electric current?
Options:
A. reactor
B. battery
C. magnet
D. generator
Answer: | B |
null | Question: What is the term for the class of ectothermic, four-legged vertebrates that produce amniotic eggs?
Options:
A. reptiles
B. Turtles
C. amphibians
D. mammals
Answer: | A |
null | Question: Types of compounds include covalent and which other compounds?
Options:
A. reactant
B. soluble
C. solvent
D. ionic
Answer: | D |
null | Question: What type of cell function relies on microfilaments, which are the actin components of the cytoskeleton?
Options:
A. nephrons
B. muscle
C. neurons
D. skin cells
Answer: | B |
null | Question: Fluid in the pseudocoelom serves as a hydrostatic what?
Options:
A. cell membrane
B. skeleton
C. shower
D. vacuum
Answer: | B |
null | Question: The atmospheric concentration of carbon dioxide on earth has been regulated by the concentration of what form of life?
Options:
A. plant
B. seaweed
C. fungus
D. fruit
Answer: | A |
null | Question: What is the study of how and why plants and animals live where they do?
Options:
A. lithography
B. biogeography
C. heredity
D. geomorphology
Answer: | B |
null | Question: The base in an antacid reacts to do what to excess stomach acid?
Options:
A. repel it
B. oxidize it
C. neutralize it
D. expel it
Answer: | C |
null | Question: A mitotic spindle forms from the what?
Options:
A. sister chromatids
B. centrosomes
C. ribosomes
D. centrioles
Answer: | B |
null | Question: Chloroplasts are the little green particles in plants made up of what colorful pigment?
Options:
A. carbonate
B. chlorophyll
C. melanin
D. verdigris
Answer: | B |
null | Question: What are color and hardness physical properties of?
Options:
A. ions
B. cells
C. elements
D. matter
Answer: | D |
null | Question: What basic structures, found in animals and plants, are organized into tissues, organs, and organ systems?
Options:
A. cells
B. bones
C. proteins
D. seeds
Answer: | A |
null | Question: The mass percentage of a solution component is defined as the ratio of the component’s mass to ________?
Options:
A. solvent's mass
B. solution ’ s mass
C. enough ’ s mass
D. liquid's mass
Answer: | B |
null | Question: During the winter, production of what amine involved in the sleep-wake cycle may be affected by less sunlight hours?
Options:
A. dopamine
B. melatonin
C. folate
D. serotonin
Answer: | B |
null | Question: Asexual reproduction occurs by what process?
Options:
A. balancing
B. ripening
C. budding
D. mating
Answer: | C |
null | Question: Einstein’s equation helps scientists understand what happens in nuclear reactions and why they produce so much what?
Options:
A. energy
B. food
C. hydrogen
D. light
Answer: | A |
null | Question: Digestion of carbohydrates is performed by several enzymes. starch and glycogen are broken down into glucose by amylase and maltase. sucrose (table sugar) and lactose (milk sugar) are broken down by sucrase and this?
Options:
A. hydrolase
B. lipase
C. lactase
D. pepsin
Answer: | C |
null | Question: What is the name for the water-splitting step of photosynthesis?
Options:
A. photolysis
B. hydrolysis
C. cellular respiration
D. peristalsis
Answer: | A |
null | Question: Electromagnetic radiation is a form of what?
Options:
A. energy
B. fusion
C. wave
D. fuel
Answer: | A |
null | Question: Lipids are biochemical compounds such as fats and?
Options:
A. salts
B. oils
C. vegetables
D. minerals
Answer: | B |
null | Question: How many valence electrons does carbon have?
Options:
A. one
B. five
C. two
D. four
Answer: | D |
null | Question: What unit of pressure is named for the scientist whose discoveries about pressure in fluids led to a law of the same name?
Options:
A. pascal
B. joule
C. ohm
D. newton
Answer: | A |
null | Question: Attaching strips of neutral metals that are higher in the activity series can protect a structure from what?
Options:
A. diffusion
B. weathering
C. deoxidation
D. corrosion
Answer: | D |
null | Question: What term is used to describe a cancer that has spread?
Options:
A. destabilized
B. metastasized
C. ostracized
D. galvanized
Answer: | B |
null | Question: What is it called when two waves in the same medium pass one another?
Options:
A. interference
B. synchrony
C. accumulation
D. frequency
Answer: | A |
null | Question: Prostaglandins also help regulate the aggregation of platelets, one step in the formation of what?
Options:
A. bloats
B. blood clots
C. acne
D. cysts
Answer: | B |
null | Question: What is the name for a series of changes in the reproductive system of mature females that repeats every month on average?
Options:
A. menstrual cycle
B. urinary cycle
C. puberty
D. periodic table
Answer: | A |
null | Question: What word describes a molecule that repels polar water?
Options:
A. soluble
B. monophobic
C. hydrophonic
D. hydrophobic
Answer: | D |
null | Question: Humans have about 20,000 to 22,000 genes scattered among 23 of these?
Options:
A. atoms
B. ribosomes
C. neutrons
D. chromosomes
Answer: | D |
null | Question: Like simple hormone pathways, hormone cascade pathways typically involve what kind of feedback?
Options:
A. positive
B. negative
C. effective
D. neutral
Answer: | B |
null | Question: What renewable energy source converts energy from the sunlight into electricity?
Options:
A. solar energy
B. hydrostatic energy
C. geophysical energy
D. geothermal energy
Answer: | A |
null | Question: When atoms gain or lose electrons, what is formed?
Options:
A. ions
B. molecules
C. crystals
D. gas
Answer: | A |
null | Question: What is the shorter loop of the cardiovascular system?
Options:
A. pulmonary edema
B. venous circulation
C. metabolic circulation
D. pulmonary circulation
Answer: | D |
null | Question: Kidney stones are considered a disease that affects which system?
Options:
A. urinary system
B. muscular system
C. reproductive system
D. digestive system
Answer: | A |
null | Question: Nearly all weather occurs in the lower part of what?
Options:
A. the lithosphere
B. the mesosphere
C. the atmosphere
D. the ionosphere
Answer: | C |
null | Question: What is the substance called whenatoms of different elements join together?
Options:
A. plants
B. crystals
C. compounds
D. crusts
Answer: | C |
null | Question: Vertical layering is an important feature of the terrestrial type of what kind of community?
Options:
A. ecosystem
B. environment
C. biome
D. habitat
Answer: | C |
null | Question: Name the multi-phase process in which the nucleus of a eukaryotic cell divides?
Options:
A. symbiosis
B. meiosis
C. mitosis
D. cytokinesis
Answer: | C |
null | Question: Fission is a type of radioactivity in which large nuclei spontaneously break apart into what?
Options:
A. light nuclei
B. active nuclei
C. faster nuclei
D. smaller nuclei
Answer: | D |
null | Question: What is the main function of blood?
Options:
A. to transport
B. digestion
C. excretion of waste
D. respiration
Answer: | A |
null | Question: Where do all cells come from?
Options:
A. busy cells
B. pre-existing cells
C. dying cells
D. large cells
Answer: | B |
null | Question: What do ants and termites eat to help them digest wood and leaves?
Options:
A. pollen
B. yeast
C. berries
D. fungi
Answer: | D |
null | Question: Sharks are an example of an animal with sharp vision that is nonetheless unable to distinguish what?
Options:
A. shapes
B. contrast
C. depth
D. color
Answer: | D |
null | Question: What kind of rocks form as an existing rock is altered by high temperature or pressure?
Options:
A. basaltic
B. metamorphic
C. igneous
D. sedimentary
Answer: | B |
null | Question: Peroxisomes carry out oxidation reactions that break down what acids?
Options:
A. fatty acids and amino acids
B. nitric acids
C. acetic acids
D. stomach acids
Answer: | A |
null | Question: A circular coral reef could indicate the earlier existence of what?
Options:
A. tsunami
B. volcano
C. avalanche
D. landslide
Answer: | B |
null | Question: What body part boasts three articulations and includes the patella?
Options:
A. knee
B. elbow
C. ankle
D. hip
Answer: | A |
null | Question: What helps to propel sponge larvae through the water?
Options:
A. tentacles
B. mucus
C. cilia
D. antennae
Answer: | C |
null | Question: The trochophre, a unique larval form, is found in the life cycle of which animal classification.
Options:
A. coral
B. mollusks
C. eels
D. sharks
Answer: | B |
null | Question: Where are most of the organs contained in insects?
Options:
A. appendages
B. thorax
C. head
D. the abdomen
Answer: | D |
null | Question: Burning of methane is a type of what, which involves the breaking and forming of bonds?
Options:
A. chemical reaction
B. physical reaction
C. toxic reaction
D. liquid reaction
Answer: | A |
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