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What season do the largest waves for surfers typically come?
A. autumn
B. summer
C. spring
D. winter
Answer: | D |
The peripheral nervous system has major nerves that travel through every part of the body except which two places?
A. brain and spinal cord
B. lungs and spinal cord
C. brain and heart
D. muscles and brain
Answer: | A |
Each nitrogenous base has one or two rings that include which atoms?
A. hydrogen
B. oxygen
C. carbon
D. nitrogen
Answer: | D |
Pluto's orbit is so elliptical that sometimes it is inside the orbit of which planet?
A. Mars
B. Earth
C. neptune
D. titan
Answer: | C |
More than half the compounds produced by the chemical industry are what?
A. synthetic polymers
B. artificial polymers
C. replacement polymers
D. gas polymers
Answer: | A |
What is it called when electrons are shared equally?
A. metabolized bonds
B. nonpolar bonds
C. helices bonds
D. polar bonds
Answer: | B |
Ribosomes are cellular substructures where what are synthesized?
A. proteins
B. acids
C. cells
D. Molecule
Answer: | A |
How long can carbon be stored in sedimentary rock?
A. less than 1000 years
B. millions of years
C. around 10,000 years
D. 22 weeks
Answer: | B |
What do you call an animal in which the embryo, often termed a joey, is born immature and must complete its development outside the mother's body?
A. eukaryotic
B. marsupial
C. monotreme
D. placental mammal
Answer: | B |
What is the most important element to life?
A. carbon
B. hydrogen
C. oxygen
D. nitrogen
Answer: | A |
The idea of evolution has been around for centuries. in fact, it goes all the way back to the ancient greek philosopher named?
A. Pluto
B. Galileo
C. Xerxes
D. aristotle
Answer: | D |
When a balloon is rubbed against hair, why do they attract each other?
A. constantly electron charge
B. lean electron charge
C. opposite electron charge
D. same electron charge
Answer: | C |
Living things get energy from food in a process called respiration, which releases what gas back into the atmosphere?
A. carbon dioxide
B. nitrogen
C. oxygen
D. hydrogen
Answer: | A |
What is the name of the scientific field that deals with the general study of the solid earth?
A. physics
B. chemistry
C. astronomy
D. geology
Answer: | D |
What kind of enzyme is phosphofructokinase?
A. orthosteric
B. allosteric
C. intracellular
D. covalent
Answer: | B |
Covering about 16 percent of the moon's surface, maria are dark, solid, flat areas consisting of what substance?
A. lava
B. dust
C. debris
D. ash
Answer: | A |
Sickle cell disease is caused by production of an abnormal type of what?
A. leukocyte
B. fat globule
C. hemoglobin
D. thrombocyte
Answer: | C |
Who first proposed that earth is a magnet?
A. william gilbert
B. Marconi
C. Isaac Newton
D. Albert Einstein
Answer: | A |
Which atomic model shows that the distances of electrons from the nucleus is not a fixed value?
A. the quantum model
B. the electron model
C. the equivocation model
D. the distance model
Answer: | A |
What is it called when breaks in bone occur that is usually caused by excessive stress on the bone?
A. faults
B. ruptures
C. fractures
D. fragments
Answer: | C |
What crystals consist of molecules at the lattice points of the crystal, held together by relatively weak intermolecular forces?
A. molecular crystals
B. salt crystals
C. quartz crystals
D. healing crystals
Answer: | A |
What causes continents to drift closer to the poles or the equator?
A. plate tectonics
B. plate movements
C. time
D. earthquakes
Answer: | B |
What is the major selective advantage of myelination?
A. heat regulation
B. potentiation
C. space efficiency
D. storage capacity
Answer: | C |
What debated therapy offers a potential method for replacing neurons lost to injury or disease?
A. stem cell therapy
B. cell duplication
C. cell production therapy
D. stem cell reduction
Answer: | A |
How many types of simple machines are there?
A. six types
B. two types
C. three types
D. ten types
Answer: | A |
After dispersal of a seed, what next step may occur if environmental conditions are favorable?
A. degradation
B. infection
C. germination
D. bloom
Answer: | C |
What is the term for the smallest particle of an element that still has the properties of that element?
A. nucleus
B. electron
C. atom
D. neutron
Answer: | C |
What are insect parasites transmitted sexually?
A. pinworms
B. pubic lice
C. chlamydia
D. deer ticks
Answer: | B |
What type of energy is used when a roller coaster runs downhill?
A. proportional energy
B. vibrational energy
C. residual energy
D. kinetic energy
Answer: | D |
In what process is atp created by glycolysis, without oxygen?
A. fermentation
B. oxidation
C. sedimentation
D. condensation
Answer: | A |
What helps deposit the material in caves as stalactites, stalagmites, and columns
A. wastewater
B. precipitation
C. gas
D. groundwater
Answer: | D |
A recent deadly explosion in the gulf of mexico exemplified what source of ocean pollution?
A. algal bloom
B. oil spill
C. greenhouse gases
D. fracking disaster
Answer: | B |
Plants supply, ultimately, most of the food eaten by terrestrial animals, along with what gas?
A. hydrogen
B. carbon dioxide
C. oxygen
D. nitrogen
Answer: | C |
Chemical reactions are typically written to imply that they proceed in one direction - if they can occur in either direction, they are considered what?
A. reactive
B. observable
C. singular
D. reversible
Answer: | D |
Single-celled eukaryotes that share some traits with animals are also called?
A. prokaryotes
B. monomers
C. microorganisms
D. eukaryotes
Answer: | D |
Antibiotics can be used to fight what, in general?
A. fever
B. pathogens
C. viruses
D. bacteria
Answer: | D |
An organism that carries pathogens from one individual to another is called what?
A. vector
B. host
C. virus
D. germ cell
Answer: | A |
What fills the epidermal cells that make up fingernails and toenails?
A. cellulose
B. chromatin
C. keratin
D. amino acids
Answer: | C |
What is the name for a parasite that causes disease?
A. enfluenza
B. pathogen
C. microbes
D. fungi
Answer: | B |
What type of map shows the elevation and features in an area?
A. geographic
B. topographic
C. meteorological
D. gradient
Answer: | B |
What are organelles made of protein and ribosomal rna (rrna)?
A. chromosomes
B. carbons
C. ribosomes
D. electrons
Answer: | C |
What are major temperature zones primarily based on?
A. altitude
B. longitude
C. latitute
D. gps
Answer: | C |
What type of muscle is found in the walls of other internal organs such as the stomach?
A. inorganic muscle
B. Tube Muscle
C. smooth muscle
D. Fiber Muscle
Answer: | C |
A visual "copy" of an object that is formed by reflected or refracted light is called what?
A. image
B. instance
C. mirror
D. photo
Answer: | A |
From the pharynx, air next passes through what structure, also known as the voice box because it contains vocal cords?
A. pancreas
B. trachea
C. diaphram
D. larynx
Answer: | D |
Vertebrates are all chordates that have a what?
A. fossil
B. backbone
C. brain
D. circulatory system
Answer: | B |
What do structures of the human eye collect and focus?
A. sugars
B. light
C. air
D. electricity
Answer: | B |
Different elements differ in the size, mass, and other properties of what fundamental structures?
A. compounds
B. ions
C. atoms
D. particles
Answer: | C |
Breasts are considered accessory organs of what body system?
A. female reproductive system
B. lymphatic system
C. nervous system
D. digestive system
Answer: | A |
Because plants lack what kind of system, their first line of defense is usually the death of cells surrounding infected tissue to prevent spread of infection?
A. digestion system
B. nervous system
C. immune system
D. hormones system
Answer: | C |
What type of cells make up tumors?
A. white blood cells
B. cancer cells
C. boyle cells
D. consumption cells
Answer: | B |
When leaves wilt, what plant process ceases?
A. carbonation
B. hydration
C. photosynthesis
D. reactions
Answer: | C |
What type of tissue makes up much of the inside of a plant?
A. ground tissue
B. leaf tissue
C. stem tissue
D. working tissue
Answer: | A |
Saliva can carry the hiv virus, but it won't spread it, unless the saliva gets into what?
A. lungs
B. liver
C. bloodstream
D. kidneys
Answer: | C |
Does blood flow increase or decrease when blood vessels constrict?
A. it stops
B. it's not affected
C. decrease
D. increases
Answer: | C |
What is venus covered in a thick layer of?
A. clouds
B. fog
C. gases
D. storms
Answer: | A |
What type of aquifer is trapped between two impermeable rock layers?
A. abandoned
B. segmented
C. solid
D. confined
Answer: | D |
Name the multi-phase process in which the nucleus of a eukaryotic cell divides?
A. cytokinesis
B. mitosis
C. symbiosis
D. meiosis
Answer: | B |
What is the term for the basic contractile unit of the muscle?
A. filament
B. sphincter
C. sarcomere
D. bandimere
Answer: | C |
What are chemical messengers that control sexual development and reproduction?
A. proteins
B. neurotransmitters
C. lipids
D. sex hormones
Answer: | D |
What are species that are first to colonize a disturbed area called?
A. exploratory species
B. brave species
C. pioneer species
D. novel species
Answer: | C |
What planet is the easiest to observe?
A. pluto
B. uranus
C. mars
D. mercury
Answer: | C |
Where does the heartbeat originate in vertebrates?
A. the pulse
B. the heart
C. the blood
D. the tissue
Answer: | B |
What is a process where some substances called reactants change chemically into different substances called products?
A. crystals reaction
B. non-chemical reaction
C. chemical reaction
D. carbon reaction
Answer: | C |
Cellulose is the main structural component of what part of the plant cell, and makes up over thirty percent of plant matter?
A. cell wall
B. proteins wall
C. roots
D. flowers
Answer: | A |
What is a push or a pull acting on an object?
A. action
B. energy
C. force
D. pulse
Answer: | C |
Which organ will bladder infections commonly damage if untreated?
A. tissue
B. heart
C. kidney
D. lungs
Answer: | C |
What is the acid that is released by the stomach that kills most pathogens that enter the stomach?
A. Sulfuric Acid
B. hydrochloric acid
C. Hydrofluoric Acid
D. Nitric Acid
Answer: | B |
What occurs when force is applied to a moving object?
A. acceleration
B. transmission
C. stimulation
D. inertia
Answer: | A |
Smooth, cardiac, and skeletal are all types of what?
A. muscle
B. bone
C. teeth
D. hormones
Answer: | A |
What group of elements does sodium belong to?
A. noble gases
B. alkali metals
C. halogens
D. metalloids
Answer: | B |
Pure constructive interference and pure destructive interference are distinguished by whether or not identical waves are what?
A. after phase
B. before phase
C. in equilibrium
D. in phase
Answer: | D |
The process of photosynthesis uses chlorophyll, which is located in organelles called what?
A. chloroplasts
B. fibroblasts
C. mitochondria
D. nucleus
Answer: | A |
What kind of oily substance is secreted from sebaceous glands?
A. Blood
B. progesterone
C. sebum
D. pus
Answer: | C |
Some reactions need extra help to occur quickly. they need another substance called what?
A. neurotransmitter
B. hormone
C. protein
D. a catalyst
Answer: | D |
What have approximately the same mass as protons but no charge?
A. reactions
B. neutrons
C. atoms
D. electrons
Answer: | B |
Amniocentesis and chorionic villus sampling can indicate whether a suspected genetic disorder is present at what stage?
A. fetal
B. adult
C. toddler
D. infant
Answer: | A |
What do you call aquatic biomes in the ocean?
A. freshwater biomes
B. coastal biomes
C. marine biomes
D. ocean dwellers
Answer: | C |
The reaction of which body system causes food allergies?
A. lymphatic system
B. nervous system
C. cardiac system
D. immune system
Answer: | D |
Leaving tampons in for too long can put you at risk of what syndrome?
A. Vaginismis
B. Scalded Skin Syndrome
C. Endometrial Cancer
D. toxic shock
Answer: | D |
There are three flat skeletal muscles in the antero-lateral wall of what?
A. hip joint
B. thoracic cavity
C. abdomen
D. shoulder socket
Answer: | C |
The dead, dry stratum corneum is the most superficial layer of what and is the layer exposed to the outside environment?
A. dermis
B. epidermis
C. intestinal
D. lungs
Answer: | B |
What protein is produced when a plasma cell is stimulated by antigens?
A. collagen
B. immunoglobulin
C. keratin
D. dystrophin
Answer: | B |
An unbalanced force on an object in motion causes what?
A. agitation
B. acceleration
C. vibration
D. velocity
Answer: | B |
Partial albinism results from a mutation in an enzyme that is involved in the production of what?
A. melanin
B. hair
C. cancer
D. cytoplasm
Answer: | A |
Where does a baby travel to after leaving the uterus?
A. tissue canal
B. nasal canal
C. birth canal
D. ear canal
Answer: | C |
Name an important natural resource in and of itself.
A. water
B. biodiversity
C. food chain
D. habitat
Answer: | B |
In classical conditioning, a response called the conditioned response is associated with what?
A. unconditioned stimulus
B. external inhibition
C. conditioned stimulus
D. blocking effect
Answer: | C |
What kind of bonds does boron form rather than metallic lattices?
A. electron bonds
B. magnetic bonds
C. multicenter
D. bilateral
Answer: | C |
What broad group of living things serves as the major producers in terrestrial biomes?
A. animals
B. flowers
C. plants
D. vases
Answer: | C |
Birds that move pollen from flower to flower are called what?
A. carnivores
B. pollinators
C. spores
D. frogs
Answer: | B |
The major cause of outdoor air pollution is the burning of?
A. trees
B. charcoal briquettes
C. trash
D. fossil fuels
Answer: | D |
What is the ideal mechanical advantage in the single fixed pulley?
A. 4
B. 1
C. zero
D. 2
Answer: | B |
What science is the study of matter and the changes it undergoes?
A. geology
B. astronomy
C. chemistry
D. biology
Answer: | C |
What is driven by the sun's energy and moves water over the surface of earth?
A. tides
B. the water cycle
C. weather cycle
D. sun cycle
Answer: | B |
What are materials that are poor thermal conductors called?
A. warmth insulators
B. sunlight insulators
C. thermal insulators
D. pollution insulators
Answer: | C |
Balanced chemical reactions are balanced in what?
A. molecular bonds
B. atoms
C. terms of moles
D. electrical charge
Answer: | C |
The autonomic nervous system serves as the relay between what and the internal organs?
A. peripheral nervous system
B. somatic system
C. hormones
D. central nervous system
Answer: | D |
The role that a particular species plays in its ecosystem is also known as what?
A. type
B. unique
C. niche
D. market
Answer: | C |
What element has the atomic number 16?
A. sulfur
B. oxygen
C. helium
D. neon
Answer: | A |
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