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Fish and other aquatic organisms use gills to capture dissolved what?
A. nitrogen
B. sulfur
C. food
D. oxygen
Answer: | D |
What phase of a human life does not have a definite starting point?
A. childhood
B. adulthood
C. death
D. adolescence
Answer: | B |
Where do all plants come from?
A. cetacean ancestors
B. distant ancestors
C. phylogenetic ancestors
D. terrestrial ancestors
Answer: | D |
The esophagus runs a mainly straight route through the mediastinum of what?
A. liver
B. lungs
C. thorax
D. stomach
Answer: | C |
What chambers are responsible for pumping blood out of the heart?
A. vacuoles
B. ventricles
C. valves
D. cells
Answer: | B |
What's the term for the period during which women's ovaries stop producing eggs?
A. maturity
B. puberty
C. menopause
D. adolescence
Answer: | C |
What is the set of steps that scientists use to learn about the world?
A. rhythm method
B. philosophic method
C. scientific method
D. Socratic method
Answer: | C |
Which are the closest living relations to land plants?
A. charophytes
B. arthropods
C. mammals
D. sporozoans
Answer: | A |
In vertebrates, what structure runs from the brain to the tail end of the backbone?
A. ribcage
B. aortic valve
C. spinal cord
D. backbone
Answer: | C |
What is it called when the chance that a certain event will occur?
A. mutation
B. procession
C. difficulty
D. probability
Answer: | D |
What is the hardest of all minerals?
A. platinum
B. gold
C. titanium
D. diamonds
Answer: | D |
When bread bakes, yeast releases which gas?
A. carbon dioxide
B. hydrogen
C. oxygen
D. carbon monoxide
Answer: | A |
What nervous tissue cells play a supporting role to neurons?
A. mammalian cells
B. reissner cells
C. axial cells
D. glial cells
Answer: | D |
Use of oil-consuming bacteria to clean up an oil spill is an example of what?
A. bioremediation
B. generation
C. coagulation
D. biodegradation
Answer: | A |
What is the process called in which living things produce offspring?
A. variation
B. diversification
C. photosynthesis
D. reproduction
Answer: | D |
What are the building blocks of peptides?
A. alkali
B. amino acids
C. rocks
D. magnets
Answer: | B |
The pull of the moon’s gravity on earth is the main cause of what water phenomenon?
A. waves
B. floods
C. tides
D. storms
Answer: | C |
What happens to evolution when equilibrium is reached within the genes of the population?
A. it goes backwards
B. it accelerates
C. it starts over
D. it stops occurring
Answer: | D |
Prostaglandins worsen what by increasing nociceptor sensitivity to noxious stimuli?
A. pain
B. reaction speed
C. recovery time
D. inflammation
Answer: | A |
The outer surface of the heart changes from positive to negative during what?
A. depolarization
B. inflammation
C. permeability
D. reproduction
Answer: | A |
What are the closest relatives to modern angiosperms?
A. staurikosaurus
B. mitochondria
C. sporozoans
D. gnetophytes
Answer: | D |
Heating a gas gives its particles more of what type of energy?
A. residual energy
B. kinetic energy
C. electrostatic energy
D. nuclear energy
Answer: | B |
What is the term for long carbohydrate molecules of repeated monomer units joined together by glycosidic bonds?
A. template strands
B. hydrocarbons
C. polysaccharides
D. fibres
Answer: | C |
What is the only known planet with large amounts of water?
A. mars
B. earth
C. saturn
D. jupiter
Answer: | B |
What is the disease in which bones lose mass and become more fragile and likely to break?
A. fibrosis
B. tuberculosis
C. osteoporosis
D. arthritis
Answer: | C |
What speeds up the reactions of chemical digestion?
A. electrical enzymes
B. protein catalysts
C. digestive enzymes
D. stomach acids
Answer: | C |
In how many states does water exist on earth?
A. two matter states
B. three matter states
C. eight matter states
D. one matter states
Answer: | B |
Find the overall magnification of what instrument by finding the magnification of the objective, then the magnification of the eyepiece?
A. part microscope
B. Fixing microscope
C. compound microscope
D. belt microscope
Answer: | C |
Insects have a highly specialized type of respiratory system called what?
A. grunion system
B. nasal system
C. gland system
D. tracheal system
Answer: | D |
What are the two main minerals found in ocean water?
A. sodium, chloride
B. carbon , chloride
C. quartz, carbon
D. dioxide , chloride
Answer: | A |
Which form of digestion is a purely physical process that does not change the chemical nature of the food?
A. simple
B. slow
C. electromagnetic
D. mechanical
Answer: | D |
What was the early study of chemistry called?
A. alchemy
B. magic systems
C. horticulture
D. pharmacology
Answer: | A |
What are used to balance chemical equations?
A. densities
B. velocities
C. coefficients
D. fractions
Answer: | C |
What kind of core does mercury have?
A. dense metal
B. solid metal
C. gas
D. liquid metal
Answer: | D |
Physical features on the earth's surface are known as ______
A. biospheres
B. diversity
C. atmospheres
D. landforms
Answer: | D |
"direct" and "alternating" are two kinds of what, which is associated with electricity?
A. time
B. constant
C. current
D. levels
Answer: | C |
What is a strombolian eruption named for?
A. mt. st. helens
B. an ice cleaner
C. a country
D. mt. stromboli
Answer: | D |
Which part of the plant conduct water and minerals as well as anchor the plant.
A. cilia
B. roots
C. leaves
D. stem
Answer: | B |
Ice caps are found only in greenland and which other place?
A. the tundra
B. antarctica
C. rainforests
D. Siberia
Answer: | B |
During a what type of reaction do chemical changes take place?
A. chemical
B. nuclear
C. biological
D. toxic
Answer: | A |
In mammals, the cells on the exterior form the trophectoderm, which goes on to form what?
A. cardiac tissues
B. extraembryonic tissues
C. aeroponics tissues
D. protoplanetary tissues
Answer: | B |
In sexual reproduction, what is the name of the gamete cell the male must contribute?
A. ova
B. spore
C. sperm
D. plasma
Answer: | C |
The term "environment of deposition" is useful for understanding the characteristics of what type of rock?
A. meteor
B. limestone
C. glacial
D. sedimentary
Answer: | D |
Apical dominance, seed germination, gravitropism, and resistance to freezing are all positively influenced by what type of chemicals in plants?
A. pesticides
B. enzymes
C. photosynthesis
D. hormones
Answer: | D |
In the nasal cavity, what 2 things trap particles from incoming air?
A. mucus and hair
B. phlegm and hair
C. mucus and skin
D. saliva and hair
Answer: | A |
Elemental carbon is a black, dull-looking solid that conducts heat and this?
A. electricity
B. energy
C. vibration
D. light
Answer: | A |
Who created the periodic table?
A. dmitri mendeleev
B. Isaac Newton
C. Niels Bohr
D. Gregor Mendel
Answer: | A |
What are unique in having adaptive immunity in addition to innate immunity?
A. organelles
B. vertebrates
C. cells
D. invertebrates
Answer: | B |
All three axes are established before the zygote begins to undergo what?
A. cleavage
B. twinning
C. birth
D. cloning
Answer: | A |
Because they are charged (polar), these ions do not diffuse through what?
A. membrane
B. cell wall
C. substrate
D. protein
Answer: | A |
What are complex organic molecules that make up cells?
A. acids
B. carbohydrates
C. sugars
D. proteins
Answer: | D |
A light bulb converts electrical energy to light and what?
A. kinetic energy
B. chemical energy
C. thermal energy
D. visible energy
Answer: | C |
What are chemical bonds between atoms of nonmetals that share valence electrons called?
A. covalent bonds
B. gravitational bonds
C. electron bonds
D. ionic bonds
Answer: | A |
What piece of technology can you use to see infrared light?
A. night goggles
B. microscope
C. telescope
D. light meters
Answer: | A |
Lenses make use of what to create images?
A. resonance of light
B. refraction of light
C. envelopment of light
D. stimulation of light
Answer: | B |
What do animals observe in others to help solve problems?
A. patterns
B. function
C. behavior
D. communication
Answer: | C |
Reef sponges typically have what type of beneficial relationships with other reef species?
A. microbes
B. mutual
C. parasitic
D. symbiotic
Answer: | D |
Where is the only place an electric charge can be found?
A. conductor
B. neuron
C. ion
D. translator
Answer: | A |
What part of a cell do proteins travel to to be modified for the specific job they will do?
A. golgi apparatus
B. plasma membrane
C. nucleus
D. lysosome
Answer: | A |
When current flows in just one direction, what is it called?
A. reactant current
B. direct current
C. alternating current
D. mono-current
Answer: | B |
An ammeter must be connected in series with what to allow it to accurately measure the current flow without causing any disruptions?
A. insulators
B. configurations
C. resistors
D. capacitors
Answer: | C |
What combines with rain to form acid rain?
A. suction and sulfur oxides
B. carbon dioxide and sulfur oxides
C. compost and sulfur oxides
D. nitrogen and sulfur oxides
Answer: | D |
Bacterial stis include chlamydia, gonorrhea, and syphilis are diseases that can usually be cured with what?
A. antioxidants
B. antihistamines
C. antivirals
D. antibiotics
Answer: | D |
Rubbing your hands together warms them by converting work into what energy?
A. kinetic energy
B. motion energy
C. thermal energy
D. layer energy
Answer: | C |
What is the opposite of nuclear fusion?
A. Solar Power
B. might fission
C. nuclear fission
D. energy fission
Answer: | C |
What are the three classifications of elements?
A. metals, non-metals and metaloids
B. metals, non-metals and alkaloids
C. alkaloids, metaloids, and non-metals
D. metals, metaloids, and alkaloids
Answer: | A |
Worms use a hydrostatic type of what anatomical structure to move through their environment?
A. skeleton
B. gastrointestinal system
C. tail
D. head
Answer: | A |
What flexible organ enables swallowing and speech?
A. stomach
B. diaphram
C. large intestine
D. tongue
Answer: | D |
What is a wall of rocks or concrete called?
A. foot
B. knee
C. groin
D. ankle
Answer: | C |
What are the special mating behaviors in birds called?
A. attraction
B. presentation
C. courtship
D. display
Answer: | C |
What kind of charges do protons give the nucleus?
A. dynamic
B. negative
C. positive
D. neutral
Answer: | C |
What happens when a cell takes in substances through its membrane?
A. filtration
B. metastasis
C. endocytosis
D. dialysis
Answer: | C |
What are compounds formed by ionic bonds called?
A. nuclear compounds
B. mixed compounds
C. layered compounds
D. ionic compounds (salts)
Answer: | D |
What kind of diagrams can be used to illustrate electron movements and ion formation?
A. electron dot diagrams
B. contour maps
C. atomic models
D. venn diagrams
Answer: | A |
What always continues in a red supergiant?
A. heat
B. fission
C. movement
D. fusion
Answer: | D |
Glycolysis, the krebs cycle, and the electron transport chain are stages in what process?
A. aerobic cellular respiration
B. cell death
C. mitosis
D. reproduction
Answer: | A |
Sex-linked traits are located on genes on what chromosomes?
A. neural
B. dna
C. sex
D. reactive
Answer: | C |
What nerves attached to the brain are mainly responsible for motor and sensory functions?
A. cranial nerves
B. stimulation nerves
C. autonomic nerves
D. somatic nerves
Answer: | A |
What would you need to see most cells?
A. microscope
B. ultraviolet
C. infrared
D. mirror
Answer: | A |
The intermolecular structure of what has spaces that are not present in liquid water?
A. condensation
B. vapor
C. distillate
D. ice
Answer: | D |
Some compounds form rigid frameworks called what?
A. crystals
B. ions
C. chemicals
D. grids
Answer: | A |
What type of relationship is it when one variable increases the other variable decreases?
A. regression
B. curve
C. inverse
D. divergence
Answer: | C |
What is the term for polyatomic ligands with two or more donor atoms?
A. polyamines
B. proteins
C. angiosperms
D. chelates
Answer: | D |
A single, often oversimplified, path through which energy and matter flow through an ecosystem is also known as what?
A. the chain
B. food chain
C. life cycle
D. fuel chain
Answer: | B |
Oncogenes are involved in the formation of what disease?
A. colds
B. autoimmune disease
C. cancer
D. heart disease
Answer: | C |
The lack of annihilation radiation coming to us from space proves that the universe is dominated by what?
A. vacuum
B. space
C. matter
D. energy
Answer: | C |
Dinitrophenol (dnp) is an uncoupler that makes the inner mitochondrial membrane leaky to protons. it was used until 1938 as a what?
A. weight loss drug
B. sleep loss drug
C. bone density drug
D. immune system booster
Answer: | A |
Melanocytes are located in which layer of the epidermis?
A. bottom
B. outer
C. crust
D. follicle
Answer: | A |
Soils with higher capacities generally have a larger reserve of what?
A. water
B. hydrogen nutrients
C. mineral nutrients
D. protein
Answer: | C |
Materials that are good conductors of thermal energy are called?
A. atmospheric inductors
B. atmospheric conductors
C. thermal inductors
D. thermal conductors
Answer: | D |
Composite cones are steep-sided, cone-shaped types of what, which produce explosive eruptions?
A. craters
B. earthquakes
C. mountains
D. volcanoes
Answer: | D |
Deficiency of what is symptomized by nausea, fatigue and dizziness, and can be triggered by excessive sweating?
A. calories
B. impurities
C. electrolytes
D. salts
Answer: | C |
Most thoracic vertebrae have two facets that articulate with the head of what structure?
A. calf
B. heart
C. pelvic
D. rib
Answer: | D |
Thrombocytes are more commonly known by what name?
A. chromosomes
B. platelets
C. molecules
D. droplets
Answer: | B |
What is the term for the remains or traces of living organisms?
A. deposits
B. remains
C. ethings
D. fossils
Answer: | D |
What type of disease is caused by pathogens?
A. nervous diseases
B. infectious diseases
C. viral diseases
D. autoimmune diseases
Answer: | B |
Worms grow to adult size without going through what stage?
A. development
B. larval
C. egg
D. growth
Answer: | B |
What serves as a first responder to pathogenic threats that bypass natural physical and chemical barriers of the body?
A. cells immune system
B. immense immune system
C. super immune system
D. innate immune system
Answer: | D |
Of the three basic types of emissions, which has the highest penetrating power?
A. chemical radiation
B. fluid radiation
C. ultraviolet radiation
D. gamma radiation
Answer: | D |
True animals are divided into those with radial versus bilateral styles of what?
A. magnetic
B. molecular
C. attracted
D. symmetry
Answer: | D |
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