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In frequency, the larger the air column, the larger the what?
A. absorption
B. wavelength
C. gravity
D. mass
Answer: | B |
Subducting plate and epicenter are terms related to what phenomenon?
A. earthquake
B. tidal wave
C. hurricane
D. eruption
Answer: | A |
What is the process by which organisms break down chemicals to make food energy?
A. excretion
B. chemosynthesis
C. gametogenesis
D. electrolysis
Answer: | B |
What is the term for an organism’s underlying genetic makeup, consisting of both the physically visible and the non-expressed alleles?
A. trait map
B. divergency
C. genotype
D. phenotype
Answer: | C |
Which organ is a wide tube connecting the small intestine with the anus?
A. stomach
B. large intestine
C. jejunum
D. rectum
Answer: | B |
What is produced when sulfur and oxygen combine?
A. sulfur oxides
B. ethanol oxides
C. treatment oxides
D. Solid oxides
Answer: | A |
Plant cells divide into two equal halves during what process?
A. mitosis
B. cytokinesis
C. prokaryotes
D. death
Answer: | A |
What is the type of succession that happens after the destruction of a habitat?
A. typical succession
B. primary succession
C. secondary succession
D. tertiary succession
Answer: | C |
The name of a monatomic cation is simply the name of the element followed by this word?
A. amine
B. laser
C. bond
D. ion
Answer: | D |
What is an extremely severe food allergy reaction?
A. anaphylaxis
B. apoptosis
C. sepsis
D. lymphocytes
Answer: | A |
What do you call the formation of a water vapor pocket?
A. coagulation
B. cavitation
C. conduction
D. precipitation
Answer: | B |
Internal body fluids link exchange surfaces to what else?
A. organs
B. tissue
C. ligaments
D. body cells
Answer: | D |
What magnetism is produced by electricity?
A. electromagnetism
B. excitation
C. diffusion
D. Charges
Answer: | A |
What is a type of plant tissue consisting of undifferentiated cells that can continue to divide and differentiate?
A. cambium
B. meristem
C. epidermis
D. ganglion
Answer: | B |
What bonds form because they give atoms a more stable arrangement of electrons?
A. Polar bond
B. covalent
C. Hydrogen bond
D. Ionic bond
Answer: | B |
What is the common abbreviation for noting the rhesus blood type?
A. h2
B. rh
C. AB
D. RNA
Answer: | B |
Coral reefs are a type of what large community and have the highest biodiversity on earth?
A. biome
B. order
C. phylum
D. taxon
Answer: | A |
What large organelle comprised of cup-shaped discs is found close to the nucleus of the cell, where it modifies proteins that have been delivered in transport vesicles?
A. ribosome
B. chloroplast
C. mitochondria
D. golgi apparatus
Answer: | D |
The penis, testes and epididymes are structures in what male anatomical system?
A. endocrine
B. immune
C. protective
D. reproductive
Answer: | D |
When waves are reflected at the same angle, what is it called?
A. angle of reflection
B. phenomenon of reflection
C. refraction
D. field of view
Answer: | A |
What us state leads all states in producing geothermal energy?
A. nevada
B. virginia
C. Texas
D. california
Answer: | D |
Sexual signaling molecules released by fungi are known as what?
A. pheromones
B. vibrations
C. hormones
D. sperm
Answer: | A |
Which energy is momentarily stored in tendons after each leap provides a boost for the next leap?
A. thermal
B. kinetic
C. magnetic
D. alternating
Answer: | B |
What is the name for a simple machine that consists of two inclined planes?
A. wedge
B. pulley
C. lever
D. slope
Answer: | A |
Each gamete will have one copy of each chromosome following which process involving cell division?
A. meiosis
B. osmosis
C. mutations
D. genomes
Answer: | A |
Where do most skin structures originate in?
A. hypodermis
B. epidermis
C. cuticle
D. dermis
Answer: | D |
What are the primary producers in the ocean?
A. phytoplankton
B. zooplankton
C. algea
D. fish
Answer: | A |
Chemists use simple diagrams to show an atom’s valence electrons and how they do what?
A. react
B. bond
C. transfer
D. escape
Answer: | C |
Soil erosion is a natural process, but what can increase it unnaturally?
A. human activities
B. human preservation
C. animal activies
D. volcanic eruption
Answer: | A |
Which part of the reproductive process only contributes one set of chromosomes?
A. ovum
B. plasma
C. egg
D. sperm
Answer: | D |
What do you call different organs working together?
A. cellular system
B. endocrine system
C. organ systems
D. maturation systems
Answer: | C |
A machine is any device that makes work easier by doing what?
A. changing a force
B. moving things
C. changing molecules
D. removing barriers
Answer: | A |
When electricity is passed through solid sodium it changes into what and gives off light?
A. gas
B. liquids
C. hydrocarbons
D. plasma
Answer: | A |
What type of plant makes up nearly all plant species?
A. gymnosperms
B. microbes
C. angiosperms
D. fungus
Answer: | C |
Prokaryotic cells have what structure outside their plasma membrane?
A. cell membrane
B. sodium channel
C. plasma wall
D. cell wall
Answer: | D |
The hemolymph and body cells exchange chemicals within what body part?
A. the gums
B. the lungs
C. the heart
D. the sinuses
Answer: | D |
Types of compounds include covalent and which other compounds?
A. solvent
B. reactant
C. soluble
D. ionic
Answer: | D |
Animals can transport what waste material in the circulatory system and store it safely at high concentrations?
A. urea
B. proteins
C. phosphorus
D. carbon
Answer: | A |
What can happen if there is a blockage in circulation to the brain?
A. stroke
B. hydration
C. automation
D. memory
Answer: | A |
The high points of a transverse wave are called what?
A. crests
B. ridges
C. valleys
D. points
Answer: | A |
Besides greenland, where are the earth's largest ice sheets found?
A. Asia
B. Europe
C. North America
D. antarctica
Answer: | D |
What kind of path does the energy of an electromagnetic wave take?
A. circuitous
B. elliptical
C. straight line
D. fluctuating
Answer: | C |
The direct conversion of a solid to a gas, without an intervening liquid phase, is called what?
A. amplification
B. insertion
C. sublimation
D. isolation
Answer: | C |
Amino acids are the building blocks of what macromolecules?
A. carbohydrates
B. lipids
C. sugars
D. proteins
Answer: | D |
What force opposes a motion of a moving body? for example a car breaking on a road.
A. vibration
B. friction
C. tension
D. thermal
Answer: | B |
The pain of angina means the heart muscle fibers need more what?
A. water
B. oxygen
C. nitrogen
D. carbon
Answer: | B |
Acids and bases are important in living things because what proteins typically can perform their job only at a certain level of acidity?
A. enzymes
B. vitamins
C. catalysts
D. hormones
Answer: | A |
Cellular respiration that proceeds in the presence of oxygen is known as what?
A. digestive respiration
B. aerobic respiration
C. kinetic respiration
D. anaerobic respiration
Answer: | B |
Electromagnetic radiation behaves like particles as well as what?
A. points
B. fluids
C. waves
D. currents
Answer: | C |
Claw ends of hammers and flagpole pulleys are examples of simple machines that reverse what?
A. direction of force
B. direction of power
C. direction of work
D. direction of friction
Answer: | A |
Lipids are also know by what name?
A. fats
B. proteins
C. sugars
D. acids
Answer: | A |
Roots, stems and leaves are organs commonly found in what?
A. animals
B. plants
C. algae
D. fungi
Answer: | B |
What type of cells in the body fluids and tissues of most animals specifically interact with and destroy pathogens?
A. immune cells
B. Dendritic cells
C. White blood cells
D. Microglial cells
Answer: | A |
What makes breathing difficult due to respiratory system disease?
A. slippery air passages
B. narrow air passages
C. water in the lungs
D. weak lungs
Answer: | B |
What type of cell layer do flatworms have?
A. epidermis
B. mesoderm
C. endoderm
D. cuticle
Answer: | B |
What gland is located at the base of the brain and secretes the hormone melatonin?
A. thymus
B. thyroid
C. pituitary
D. pineal
Answer: | D |
What are the most common roundworm parasites of people in the u. s.?
A. cutworms
B. pinworms
C. leeches
D. hookworms
Answer: | B |
What is the type of landscape that occurs at higher latitudes than deserts, has short grasses and low bushes, and are dry because they are in continental interiors?
A. plains
B. tundra
C. plateau
D. steppe
Answer: | D |
The existence of (virtual) photons is possible only by virtue of the heisenberg uncertainty principle and can travel an unlimited distance, so the range ofthe electromagnetic for is what?
A. simple
B. infinite
C. finite
D. generated
Answer: | B |
What is energy that travels in the form of an electromagnetic wave?
A. sound
B. microwave
C. gravity
D. light
Answer: | D |
What changes water vapor to liquid water?
A. fermentation
B. combustion
C. global warming
D. condensation
Answer: | D |
What instrument, with a digital readout, is used by scientists to measure very small masses?
A. electronic balance
B. mechanical balance
C. mixed balance
D. common balance
Answer: | A |
What element is released into the atmosphere by the burning of fossil fuels?
A. oxygen
B. carbon
C. sulfur
D. helium
Answer: | C |
What type of hydrocarbons contain at least one double or triple bond between carbon atoms?
A. unsaturated
B. catalytic
C. ionic
D. saturated
Answer: | A |
What is the general name for a wave that travels along the surface of a medium?
A. speed wave
B. surface wave
C. light wave
D. stack wave
Answer: | B |
Carbohydrates are an important group of biological molecules that includes sugars and these?
A. proteins
B. vitamins
C. starches
D. fats
Answer: | C |
What types of drugs affect the brain and influence how a person can feel, think, or act?
A. antibiotics
B. analgesics
C. prescription
D. psychoactive
Answer: | D |
Chemical reactions always involve what?
A. physical change
B. fuel
C. heating
D. energy
Answer: | D |
An object undergoing circular motion experiences centripetal what?
A. vibration
B. transmission
C. acceleration
D. velocity
Answer: | C |
What rocks are formed by crystallization of chemical precipitates?
A. chemical sedimentary
B. carbon sedimentary
C. layered
D. volcanic
Answer: | A |
In some plants, the sporophyte is diploid, while the gametophyte is what?
A. humanoid
B. haploid
C. meiosis
D. gametes
Answer: | B |
A lipid is one of a highly diverse group of compounds made up mostly of what?
A. amines
B. proteins
C. nucleic acid
D. hydrocarbons
Answer: | D |
During mitosis what is replicated in the primary spermatocyte?
A. rna
B. dna
C. mitochondira
D. oocyte
Answer: | B |
What can carry nerve impulses from tissues and organs to the spinal cord and brain?
A. motor neurons
B. respiratory neurons
C. healthy neurons
D. sensory neurons
Answer: | D |
Chemical equations need to be balanced to satisfy the law of what?
A. glow of matter
B. conservation of matter
C. speed of matter
D. material of matter
Answer: | B |
Which species in class insecta has three body segments, six jointed legs, and multiple head appendages?
A. arthropod
B. sauropod
C. arachnid
D. mollusc
Answer: | A |
Whether it's puppies or people, offspring and parents usually share many of what?
A. insects
B. traits
C. clothes
D. fruits
Answer: | B |
Connected to agriculture, forestry, mining, and urbanization, what is the single biggest cause of extinction today?
A. habitat loss
B. hunting
C. freshwater loss
D. global warming
Answer: | A |
The hexapoda subphylum includes mainly what type of animal?
A. birds
B. insects
C. spiders
D. mammals
Answer: | B |
What are living echinoderms divided into five of?
A. sexes
B. classifications
C. species
D. clades
Answer: | D |
Gases on earth originated from comets and what events?
A. tides
B. supernovas
C. volcanic eruptions
D. black holes
Answer: | C |
What season is it in the southern hemisphere when it's winter in the northern?
A. Spring
B. summer
C. autumn
D. Winter
Answer: | B |
What is the name for areas where there is overlap between closely related species?
A. gap zones
B. mono zones
C. extinction zones
D. hybrid zones
Answer: | D |
By what are skeletal muscles attached to bones?
A. ligaments
B. tendons
C. veins
D. joints
Answer: | B |
What is the best-known geyser in the world that also faithfully erupts every 90 minutes?
A. devil's tongue
B. old faithful
C. angel falls
D. old guy
Answer: | B |
What kind of energy constitutes the total kinetic energy of all the atoms that make up an object?
A. atmospheric energy
B. thermal energy
C. phenomena energy
D. kinetic energy
Answer: | B |
What is the name for birds that live on water like ducks?
A. gamefowl
B. landfowl
C. guineafowl
D. waterfowl
Answer: | D |
Spores are generally produced through what type of reproduction?
A. hormone
B. sexual
C. similar
D. asexual
Answer: | B |
What do we call the diffusion of water across a membrane because of a difference in concentration?
A. osmosis
B. hemostasis
C. electrolysis
D. cell transportation
Answer: | A |
Scientific notation expresses a number as a what, times a power of 10?
A. function
B. coefficient
C. expression
D. fraction
Answer: | B |
How many valence electrons does a sodium atom have ?
A. two
B. six
C. one
D. three
Answer: | C |
Within an organism, the cells that give rise to the next generation are known as germ cells, while those that do not (that is, the cells that die when the organism dies) are known as what cells?
A. xylem
B. neural
C. cloning
D. somatic
Answer: | D |
An external opening in the what of amphibians allows wastes and gametes to exit the body?
A. anus
B. cloaca
C. urethra
D. oral cavity
Answer: | B |
What kind of scientists measure percentages of sand, silt, and clay?
A. amount scientists
B. petro scientists
C. soil scientists
D. texture scientists
Answer: | C |
What hormone affects developent and maturation in animals?
A. insulin
B. thyroid
C. melatonin
D. dopamine
Answer: | B |
The three types of mammals are characterized by their method of what?
A. reproduction
B. pattern
C. specializaiton
D. differentiation
Answer: | A |
What planet has the most volcanoes?
A. venus
B. Mars
C. Earth
D. uranus
Answer: | A |
Gene duplications that are able to persist over many generations without causing too much harm to an organism or species can lead to what?
A. parasites
B. characteristics
C. mutations
D. permutations
Answer: | C |
What keeps earth in orbit around the sun?
A. gravity
B. motion
C. momentum
D. energy
Answer: | A |
The work-energy theorem states that the net work on a system equals the change in what type of energy?
A. residual energy
B. kinetic energy
C. binary energy
D. new energy
Answer: | B |
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