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What part of the cell controls what enters and leaves?
A. organism
B. membrane
C. protein
D. nucleus
Answer: | B |
Where does the development of a fetus take place?
A. The kidney
B. The bladder
C. The vagina
D. the female reproductive system
Answer: | D |
What is the critical factor for the survival of segmented worms?
A. sunlight and water
B. sunlight and warmth
C. humidity and sunlight
D. water and humidity
Answer: | D |
During sexual arousal what does the clitoris, vagina, and labia minora all engorge with?
A. fluid
B. urine
C. blood
D. bacteria
Answer: | C |
What is another term for joules per second?
A. jacobs
B. parsons
C. watts
D. jiffies
Answer: | C |
What is extracted from rock by heap leaching, flotation, or smelting?
A. ore
B. methane
C. fuel
D. copper
Answer: | A |
What tool is useful for studying the ocean floor because the environment is remote and underwater?
A. microscope
B. scale
C. sonar
D. telescope
Answer: | C |
What is the functional unit of the kidney which actively filters blood and generates urine?
A. mecrophron
B. nephron
C. epithelial
D. sechron
Answer: | B |
Name two candidates for the original sources of viral genomes.
A. chloroplasts and transposons
B. macrophages and transposons
C. ediacara and transposons
D. plasmids and transposons
Answer: | D |
What do you call a substance that is not an acid or a base?
A. equivalent
B. oxidic
C. neutral
D. toxic
Answer: | C |
An amide bond joining two amino acid units is called a what?
A. ammonia bond
B. precipitate bond
C. carboxyl bond
D. peptide bond
Answer: | D |
What is the name for spherical groups of old stars held tightly together by gravity?
A. elliptical clusters
B. dark matter
C. nebula
D. globular clusters
Answer: | D |
What type of state do most fungi spend their lives in?
A. meiosis
B. haploid
C. diploid
D. triploid
Answer: | B |
What is the white solid that forms on corroded battery terminals?
A. ammonia sulfate
B. straight sulfate
C. copper sulfate
D. lead sulfate
Answer: | D |
What does the decomposition of dead organisms and organic waste release into the atmosphere, soil, or ocean?
A. carbon
B. hydrogen
C. nitrogen
D. oxygen
Answer: | A |
In which process do two light nuclei combine to produce a heavier nucleus and great energy?
A. certain fusion
B. nuclear fusion
C. light fusion
D. general fusion
Answer: | B |
What results from the consumption of pathogenic bacteria, viruses, or parasites that contaminate food?
A. foodborne diseases
B. airborne diseases
C. hidebound diseases
D. parabens diseases
Answer: | A |
What type of physical properties of a substance do not depend on amount?
A. stable
B. extensive
C. inherent
D. intensive
Answer: | D |
A wave that consists of vibrating electric and magnetic fields is called what?
A. mechanical wave
B. propagate wave
C. thermal wave
D. electromagnetic wave
Answer: | D |
Both endocytosis and ______ are active transport processes.
A. cellular respiration
B. biosynthesis
C. exocytosis
D. proteolysis
Answer: | C |
What type of roads and parking lots prevent rainwater from soaking into the ground?
A. gravel
B. shaded
C. paved
D. dirt
Answer: | C |
What type of acid is often used as a preservative for acidic foods such as fruit juices?
A. citric acid
B. hydrochloric acid
C. sulfuric acid
D. benzoic acid
Answer: | D |
Vascular plants evolved what basic structures to collect sunlight?
A. flowers
B. roots
C. stems
D. leaves
Answer: | D |
The entropy is decreasing because a gas is becoming a what?
A. solid
B. vapor cloud
C. swirl
D. liquid
Answer: | D |
Sucrose does not undergo reactions that are typical of aldehydes and ketones, therefore it is a nonreducing what?
A. wheat
B. sugar
C. salt
D. juice
Answer: | B |
An electric stove changes electric current to what form of energy?
A. nuclear
B. kinetic
C. thermal
D. thermodynamic
Answer: | C |
Mammals are endothermic vertebrates that have four limbs and produce what type of eggs?
A. umbilical
B. gymnoic
C. epithelial
D. amniotic
Answer: | D |
Which group of metals in the periodic table include elements such as sodium and potassium?
A. alkali metals
B. igneous metals
C. lanthanides
D. actinides
Answer: | A |
What is the term for force that opposes motion between any touching surfaces?
A. gravity
B. tension
C. stress
D. friction
Answer: | D |
Most animals are in which clade?
A. synapsids
B. bilateria
C. metazoa
D. eutheria
Answer: | B |
What system carries nerve impulses to internal organs, controlling activities that are not under your control, such as sweating and digesting food?
A. circulatory nervous system
B. autonomic nervous system
C. hormonal nervous system
D. limbic nervous system
Answer: | B |
What are invertebrate chordates that retain all four defining chordate traits as adults called?
A. lancelets
B. vertebrates
C. tunicates
D. sporozoans
Answer: | A |
What has traditionally been defined as a force of attraction between two masses?
A. mass
B. volume
C. motion
D. gravity
Answer: | D |
What members of an ecosystem food chain take in food by eating producers or other living things?
A. primary producers
B. decomposers
C. insectivores
D. consumers
Answer: | D |
What are small organelles and are the site of protein synthesis?
A. vacuoles
B. ribosomes
C. chloroplasts
D. nucleus
Answer: | B |
Lungs, pharynx, larynx, trachea, and bronchi are part of which system?
A. neural
B. digestive
C. respiratory
D. nervous
Answer: | C |
What is necessary for growth and energy?
A. nutrients
B. warmth
C. breeding
D. determination
Answer: | A |
Bryophyta is the formal taxonomic name for the phylum that consists solely of what?
A. grasses
B. trees
C. mosses
D. lichens
Answer: | C |
In humans, how many chromosomes does each somatic cell have?
A. 46
B. 36
C. 48
D. 51
Answer: | A |
Like mitochondria, plastids contain their own what?
A. bacteria
B. riboflavin
C. dna
D. molecule
Answer: | C |
Terrestrial and aquatic are the two basic categories of what, on earth?
A. biomes
B. atmospheres
C. substrates
D. dendrites
Answer: | A |
When dissolved in water, what do strong acids transfer to the solvent completely?
A. acidic proteins
B. acidic protons
C. acidic electrons
D. acidic neutrons
Answer: | B |
On the atomic level, the dissolution of an ionic compound occurs when water interacts with the what in the crystal lattice?
A. ions
B. fractals
C. atoms
D. particles
Answer: | A |
What is one method to observe nebulae?
A. kaleidoscope
B. microscope
C. mirror
D. telescope
Answer: | D |
When alternating primary current passes through coil p, it does what to the iron core?
A. electrilizes it
B. magnetizes it
C. heats it
D. creates it
Answer: | B |
What state of matter exists if particles do not have enough kinetic energy to overcome the force of attraction between them?
A. solid
B. plasma
C. gas
D. liquid
Answer: | A |
What is the“packet” of energy called that the nucleus emits during gamma decay?
A. ultraviolet particle
B. transient particle
C. radioactive particle
D. gamma particle
Answer: | D |
The movement of molten metal in earth's outer core creates?
A. earthquakes
B. the stellar field
C. the gravitational field
D. the magnetic field
Answer: | D |
Mechanical churning of food in what organ serves to further break it apart and expose more of its surface area to digestive juices, creating an acidic “soup” called chyme?
A. liver
B. stomach
C. kidneys
D. gall bladder
Answer: | B |
A constant and plentiful supply of oxygen is required in order to maintain a high rate of what?
A. digestion
B. cell division
C. magnesium
D. metabolism
Answer: | D |
Organisms interact with each other and what else?
A. physical environment
B. outside enviroment
C. atmospheric environment
D. thermal environment
Answer: | A |
What is the center of an earthquake called?
A. the epicenter
B. the core
C. the impact
D. the magnitude
Answer: | A |
Calvin cycle reactions can be organized into three basic stages: fixation, reduction, and this?
A. creation
B. transformation
C. demarcation
D. regeneration
Answer: | D |
What type of cells are arranged into tightly packed sheaths around the veins of the leaf?
A. pattern - sheath cells
B. cellulose
C. bundle-sheath cells
D. cell walls
Answer: | C |
How are the number of moles of carbon dioxide gas calculated?
A. casuistry
B. phytochemistry
C. stoichiometry
D. relativistic
Answer: | C |
What is the name of the blood protein that carries oxygen from the lungs to the body's assorted tissues?
A. hemoglobin
B. insulin
C. White Blood cells
D. plasma
Answer: | A |
The sun and many other light sources produce waves that are randomly this?
A. obfuscated
B. polarized
C. colored
D. amplified
Answer: | B |
Each vertebral vein also flows into which vein?
A. xerophyte
B. brachiocephalic
C. trichina
D. spiral
Answer: | B |
Almost all plants make food through what process?
A. photosynthesis
B. hydrolysis
C. evolution
D. glycolysis
Answer: | A |
What did darwin call the evolutionary concept of change in populations over generations?
A. reproduction with modifications
B. formation with modifications
C. descent with modifications
D. metabolism with modifications
Answer: | C |
Surprisingly, where would you find the earth’s tallest mountains and deepest canyons?
A. Tibet
B. taiga
C. ocean floor
D. rain forests
Answer: | C |
The part of the shadow in which light is completely blocked is called what?
A. penumbra
B. eclipse
C. umbra
D. corona
Answer: | C |
What is the name of the period of transition between the beginning of puberty and adulthood?
A. maturation
B. childhood
C. aging
D. adolescence
Answer: | D |
The formula unit of sodium chloride dissociates into one sodium ion and one?
A. magnesium ion
B. oxygen ion
C. chloride ion
D. electron
Answer: | C |
Fibrous root systems have many small branching roots called what?
A. fibrous roots
B. vines
C. taproots
D. tendrils
Answer: | A |
A system of glands secretes what chemical messenger molecules into the blood?
A. metabolytes
B. acids
C. hormones
D. enzymes
Answer: | C |
In eukaryotic cells, molecules such as enzymes are usually compartmentalized into different what?
A. organelles
B. organisms
C. electrons
D. atoms
Answer: | A |
What does the stable form of sulfur at room temperature contain?
A. six - membered rings
B. electron shell
C. eight-membered rings
D. four - membered rings
Answer: | C |
What term means the amount of a substance required to form a saturated solution in a given amount of solvent at a specified temperature?
A. solubility
B. turbidity
C. concentration
D. viscosity
Answer: | A |
What bone forms the upper jaw and supports the upper teeth?
A. subaerial bone
B. orbital bone
C. maxillary bone
D. tibular bone
Answer: | C |
What does increasing a solute's temperature do?
A. decrease its solubility
B. no change
C. increases its viscosity
D. increases its solubility
Answer: | D |
What are the pyramid-shaped, paired organs that are connected to the trachea by the right and left bronchi?
A. lungs
B. ovaries
C. kidneys
D. stomachs
Answer: | A |
The global biosphere includes all areas of what?
A. study
B. life
C. geography
D. science
Answer: | B |
Atomic orbitals from different atoms overlap to form what?
A. plasma orbitals
B. molecular orbitals
C. planet orbitals
D. space orbitals
Answer: | B |
Particulates cause lung diseases. they can also increase the risk of heart disease and the number of what?
A. shortness of breath
B. cancer
C. asthma attacks
D. coughing
Answer: | C |
What reinforces the thin walls of the right ventricle and plays a crucial role in cardiac conduction?
A. moderator valve
B. moderator band
C. pores band
D. pores valve
Answer: | B |
What kind of radiation is observed in honeycreeper birds?
A. spontaneous
B. adaptive
C. symbiotic
D. destructive
Answer: | B |
What do we call the worldwide radio-navigation system formed from a constellation of 24 satellites and their ground stations?
A. compass
B. cellular network
C. radio waves
D. gps
Answer: | D |
What substance can be eroded by wind or water?
A. wood
B. sand
C. soil
D. metal
Answer: | C |
What unit of the nervous system consists of a cell body, dendrites, and axon?
A. neuron
B. mitochondria
C. Transmitter
D. ganglion
Answer: | A |
What are small planets in our solar system called?
A. light planets
B. dwarf planets
C. scrub planets
D. Tiny planets
Answer: | B |
What is electrons in the highest occupied principal energy level of an atom called?
A. gradient electrons
B. shell electrons
C. valence electrons
D. non-valence electrons
Answer: | C |
Pacemaker cells stimulate the spontaneous contraction of cardiac muscle as a functional unit, called a what?
A. tapetum
B. syncytium
C. coenocyte
D. adipocytes
Answer: | B |
A mineral’s crystal shape is determined by the way what objects are arranged?
A. particles
B. Electrons
C. atoms
D. molecules
Answer: | C |
Unlike prokaryotes, eukaryotes have a what?
A. cell nucleus
B. flagellum
C. mitochondria
D. cell wall
Answer: | A |
What term is used to describe major changes in the genetic material?
A. eukaryotic alterations
B. mutational alterations
C. chromosomal alterations
D. generational alterations
Answer: | C |
What type of rocks form when sediments are compacted and cemented together?
A. crystalline rocks
B. sedimentary rocks
C. metamorphic rocks
D. igneous rocks
Answer: | B |
Processes in which matter changes between liquid and solid states are freezing and?
A. steaming
B. transpiration
C. boiling
D. melting
Answer: | D |
Abrasion is a process of what type of weathering?
A. environmental
B. molecular
C. geological
D. mechanical
Answer: | D |
Mendel’s observation of pea plants also included many crosses that involved multiple traits, which prompted him to formulate the principle of this?
A. independent texture
B. independent contain
C. dependent evolution
D. independent assortment
Answer: | D |
The skull consists of cranial bones and what other type of bones?
A. facial
B. nasal
C. superficial
D. subdermal
Answer: | A |
Insects are arthropods in which class?
A. xerophyte
B. hexapoda
C. lexapoda
D. trichina
Answer: | B |
What is the tail bone an example of?
A. parasitic structure
B. vestigial structure
C. primordial structure
D. invertebrate structure
Answer: | B |
What is the intersection point of the critical temperature and the critical pressure called?
A. instance point
B. basic juncture
C. peak point
D. critical point
Answer: | D |
Nuclear power plants produce electricity through what?
A. intense fission
B. High Fission
C. induced fission
D. severe fission
Answer: | C |
When the body goes into survival mode, it's first priority is to produce enough of which substance for the brain?
A. plasma
B. blood
C. insulin
D. glucose
Answer: | D |
What do we consider the basic building blocks of life?
A. atoms
B. cells
C. neurons
D. muscles
Answer: | B |
Which law describes the angle at which the reflected rays leave the surface is equal to the angle at which the incident rays strike the surface?
A. velocity
B. diffusion
C. gravity
D. reflection
Answer: | D |
What major pigment in the photosynthetic system is based on a complex molecule and gives plants their green color?
A. cadmium
B. chlorophyll
C. chloroplasm
D. melanin
Answer: | B |
If heat is released by the system into the surroundings, a chemical reaction or physical change is called what?
A. exothermic
B. endothermic
C. biochemical
D. static
Answer: | A |
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