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Insect wings are part of the exoskeleton and attached to the what?
A. thorax
B. neck
C. head
D. spines
Answer:
|
A
|
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|
What was the informal female name given to the adult fossil found in ethiopia and thought to be over 3 million years old?
A. aunt
B. lucy
C. alice
D. linda
Answer:
|
B
|
sciq
|
What is the term for a formula that shows the elements in a compound in their lowest whole-number ratio?
A. Dwarf Formula
B. empirical formula
C. intrinsic formula
D. measured formula
Answer:
|
B
|
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|
What is defined as the spreading of white light into its full spectrum of wavelengths?
A. combustion
B. immersion
C. dispersion
D. saturation
Answer:
|
C
|
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|
What is used in the growth, development, functioning and reproduction of all known living organisms and many viruses?
A. viruses
B. dna
C. bacteria
D. enzymes
Answer:
|
B
|
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|
When methane burns, what is produced along with carbon dioxide?
A. oxygen
B. water
C. hydrogen
D. nitrogen
Answer:
|
B
|
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|
What helps pumice float in water?
A. large mass
B. gas bubble holes
C. gravity
D. high density
Answer:
|
B
|
sciq
|
What land mammal has the longest gestation period?
A. Rhino
B. african elephant
C. Giraffe
D. Asian elephant
Answer:
|
B
|
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|
What sustains the fetus while it grows inside the mother’s uterus?
A. placenta
B. endometrium
C. mitochondria
D. bacteria
Answer:
|
A
|
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|
Two kinds of sex hormones are of particular importance in females: progesterone, which prepares the uterus for pregnancy and prevents the further release of eggs from the ovaries during pregnancy, and the estrogens, which are mainly responsible for the development of female secondary sexual characteristics, such as breast development and increased deposition of this?
A. fat
B. blood
C. bone
D. muscle
Answer:
|
A
|
sciq
|
Zoonotic pathogens are transferred from what to what?
A. animals to humans
B. humans to humans
C. animals to animals
D. humans to animals
Answer:
|
A
|
sciq
|
Restriction enzymes or restriction endonucleases are prokaryotic enzymes that recognize and cut what at specific sequences?
A. rna
B. mitochondria
C. dna
D. bacteria
Answer:
|
C
|
sciq
|
What are chemical reactions represented by?
A. carbon equations
B. chemical equations
C. liquid equations
D. nuclear equations
Answer:
|
B
|
sciq
|
The length of the sloped surface of a ramp is referred to as what?
A. output distance
B. furlong
C. input distance
D. accumulation distance
Answer:
|
C
|
sciq
|
Producers, primary consumers, higher-level consumers, and decomposers are levels in what?
A. food flowchart
B. food model
C. energy chain
D. food chain
Answer:
|
D
|
sciq
|
Parthenogenis in komodo dragons is an example of what kind of reproduction, whereby offspring are created from just one parent?
A. asexual reproduction
B. natural reproduction
C. organic reproduction
D. benthic reproduction
Answer:
|
A
|
sciq
|
The value that occurs most often in a data set is called the?
A. mode
B. type
C. median
D. mean
Answer:
|
A
|
sciq
|
Over time, deposited sediments may harden into what?
A. deltas
B. coral
C. fossils
D. rocks
Answer:
|
D
|
sciq
|
What is the most useful quantity for counting particles?
A. the coefficient
B. the mole
C. the periodic table
D. the vector
Answer:
|
B
|
sciq
|
What is the failure of replicated chromosomes during meiosis to separate known as?
A. pollenation
B. nondisjunction
C. regression
D. separation
Answer:
|
B
|
sciq
|
In angiosperms, flowers and fruits are adaptations essential for what process?
A. reproduction
B. variation
C. photosynthesis
D. death
Answer:
|
A
|
sciq
|
Through what part do exocrine glands discharge their contents?
A. capillaries
B. follicles
C. urethra
D. tubular ducts
Answer:
|
D
|
sciq
|
Where do plankton, nekton, and benthos live?
A. forests
B. deserts
C. in the oceans
D. arctic
Answer:
|
C
|
sciq
|
What gland is a butterfly-shaped organ located in the neck anterior to the trachea?
A. thyroid gland
B. pineal gland
C. pituitary gland
D. adrenal gland
Answer:
|
A
|
sciq
|
What cause the rippled surface of the ocean?
A. earthquakes
B. winds
C. tides
D. waves
Answer:
|
D
|
sciq
|
What small glands are abundant within the mucous membranes of the mouth and tongue?
A. salivary glands
B. retinal glands
C. hypothalamus glands
D. localized glands
Answer:
|
A
|
sciq
|
What is the term for the development of an embryo inside an egg within the mother’s body until it hatches?
A. ovovivipary
B. asexual reproduction
C. pregnancy
D. spawning
Answer:
|
A
|
sciq
|
Where does carbohydrate digestion begin in the body?
A. mouth
B. throat
C. intestines
D. stomach
Answer:
|
A
|
sciq
|
When did new plants start sprouting after the forest fire?
A. two days later
B. two months later
C. two weeks later
D. five months later
Answer:
|
B
|
sciq
|
What are the largest known proteins called?
A. titins
B. aminos
C. sporozoans
D. obscures
Answer:
|
A
|
sciq
|
Metals, fossil fuels, and water are all examples of what type of resource?
A. ores
B. renewable resources
C. natural resources
D. recyclables
Answer:
|
C
|
sciq
|
What is the force that causes centripetal acceleration?
A. pressure
B. Tension Force
C. gravity
D. centripetal force
Answer:
|
D
|
sciq
|
Pressure and ________ are directly proportional at a constant volume?
A. heating
B. temperature
C. speed
D. precipitation
Answer:
|
B
|
sciq
|
What is the process by which plants capture the energy of sunlight and use carbon dioxide from the air (and water) to make their own food called?
A. atherosclerosis
B. photosynthesis
C. photochemistry
D. spermatogenesis
Answer:
|
B
|
sciq
|
Categorized based on how they produce their mrna using the baltimore classification method, what consist of a nucleic acid core surrounded by a protein capsid with or without an outer lipid envelope?
A. amphibians
B. bacteria
C. viruses
D. parasites
Answer:
|
C
|
sciq
|
Primary alcohols are oxidized to form what?
A. aldehydes
B. alloys
C. enzymes
D. oxides
Answer:
|
A
|
sciq
|
Where does electric power originate?
A. coal mines
B. the Sun
C. power plants
D. magnets
Answer:
|
C
|
sciq
|
What type of fertilization do most reptiles use to reproduce?
A. external
B. internal
C. mechanical
D. asexual
Answer:
|
B
|
sciq
|
Visible light is part of what spectrum?
A. electromagnetic spectrum
B. molecular spectrum
C. eclipse spectrum
D. mechanical spectrum
Answer:
|
A
|
sciq
|
Amino acids are made by which kind of plastid?
A. sporozoans
B. glucoplasts
C. leucoplasts
D. neuroplasts
Answer:
|
C
|
sciq
|
The amount of power passed through transmission lines can be calculated by multiplying voltage by what?
A. current
B. amplification
C. induction
D. resistance
Answer:
|
A
|
sciq
|
When a balloon is rubbed against hair, they attract each other because of a difference in what?
A. Force
B. charges
C. Friction
D. actions
Answer:
|
B
|
sciq
|
The cell starting meiosis is called a what?
A. secondary oocyte
B. primary oocyte
C. primary gamete
D. zygote
Answer:
|
B
|
sciq
|
A wave is the transfer of energy through what else?
A. air
B. liquid
C. gas
D. matter
Answer:
|
D
|
sciq
|
What nest of cells protect the egg as it matures in the ovary?
A. the follicle
B. the epidermis
C. the tube
D. the clump
Answer:
|
A
|
sciq
|
Why do beer brewers add yeast to the wort?
A. to make alcohol
B. increase longevity
C. reduce alcohol
D. add carbonation
Answer:
|
A
|
sciq
|
Amino acids broken down by metabolic process are mostly recycled into new what?
A. hormones
B. enzymes
C. lipids
D. proteins
Answer:
|
D
|
sciq
|
What type of logic can lead to important conclusions from the collecting and analyzing of observations?
A. inductive reasoning
B. gravitational reasoning
C. primitive reasoning
D. conductive reasoning
Answer:
|
A
|
sciq
|
Screws move objects to a higher elevation by increasing what?
A. force applied
B. kinetic energy
C. velocity
D. torque
Answer:
|
A
|
sciq
|
What is the second state of photosynthesis?
A. Phillip cycle
B. glover cycle
C. morton cycle
D. calvin cycle
Answer:
|
D
|
sciq
|
What is the only amphibian without legs?
A. frogs
B. newts
C. alligators
D. caecilians
Answer:
|
D
|
sciq
|
Most organisms could not survive without what being present to speed up biochemical reactions?
A. enzymes
B. lipids
C. vitamins
D. hormones
Answer:
|
A
|
sciq
|
Metabolic cooperation between different prokaryotic species often occurs in surface-coating colonies. what are these colonies called?
A. lichens
B. eukaryotes
C. biofilms
D. plankton
Answer:
|
C
|
sciq
|
What word describes a carbonyl where the carbon atom makes single bonds with two others?
A. ketones
B. ions
C. acetone
D. photons
Answer:
|
A
|
sciq
|
The concentration of hydronium ions in a solution is known as what?
A. akaline
B. base
C. pH value
D. acidity
Answer:
|
D
|
sciq
|
What do we call structures that are similar in related organisms because they were inherited from a common ancestor?
A. filamentous
B. polylogous
C. monogamous
D. homologous
Answer:
|
D
|
sciq
|
What is continually released during childbirth through a positive feedback mechanism and prompts uterine contractions to fetal head toward the cervix?
A. oxytocin
B. insulin
C. hemoglobin
D. vasopressin
Answer:
|
A
|
sciq
|
What is the addition of nucleotides to the mrna strand?
A. elevation
B. insertion
C. elongation
D. axons
Answer:
|
C
|
sciq
|
Wave amplitude and wavelength are two important measures of what?
A. wave harmfulness
B. wave sound
C. wave speed
D. wave size
Answer:
|
D
|
sciq
|
What is the color of mercury(ii) oxide?
A. copper
B. blue
C. green
D. red
Answer:
|
D
|
sciq
|
How many hydrogen atoms does a nitrogen atom of a primary amine have?
A. two
B. ten
C. four
D. six
Answer:
|
A
|
sciq
|
What ultimately results in the cycling of nutrients in ecosystems?
A. chemical bonds
B. digestion
C. molecules between organisms
D. interactions between organisms
Answer:
|
D
|
sciq
|
Platforms, arches, and sea stacks are all landforms created by what?
A. erosion
B. sediment
C. volcanic activity
D. debris
Answer:
|
A
|
sciq
|
The state of matter - solid, liquid, or gas - is also considered what type of property?
A. physical
B. mechanical
C. chemical
D. thermal
Answer:
|
A
|
sciq
|
Panting allows dogs to get rid of what?
A. excess body heat
B. fur balls
C. calories
D. accumulated toxins
Answer:
|
A
|
sciq
|
What is the standard unit for mass?
A. kilogram
B. pound
C. ounce
D. meter
Answer:
|
A
|
sciq
|
The planets orbit around what celestial body?
A. sun
B. horizon
C. moon
D. earth
Answer:
|
A
|
sciq
|
What kind of behaviors are adaptive because they are flexible, capable of changing if the environment changes?
A. passed behavior
B. studied behavior
C. learned behavior
D. human
Answer:
|
C
|
sciq
|
What is the term for a galaxy that is a rotating disk of stars and dust?
A. nebula
B. Milky Way
C. spiral galaxy
D. cosmic galaxy
Answer:
|
C
|
sciq
|
What occurs when a former inhabited area gets disturbed?
A. tertiary succession
B. primary succession
C. secondary succession
D. tropical succession
Answer:
|
C
|
sciq
|
The chloroplasts contained within the green algal endosymbionts still are capable of what process associated with plants?
A. reproduction
B. respiration
C. photosynthesis
D. germination
Answer:
|
C
|
sciq
|
What do seismic waves prove about the inner core?
A. it is solid
B. it is layered
C. it is hot
D. it is liquid
Answer:
|
A
|
sciq
|
What is divided during cytokinesis?
A. cytoskeleton
B. cytoplasm
C. nucleus
D. chromosomes
Answer:
|
B
|
sciq
|
Materials such as metals have low resistance to electric current, what are they called?
A. electric conductors
B. electric channels
C. electric conduit
D. electric channel
Answer:
|
A
|
sciq
|
An alloy is a mixture of what with one or more other substances?
A. metal
B. acid
C. protein
D. water
Answer:
|
A
|
sciq
|
A can of warm soda will fizz more because increasing the temperature decreases the what of a gas?
A. solubility
B. humidity
C. Acidity
D. viscosity
Answer:
|
A
|
sciq
|
What branch of biology studies animal behavior?
A. ethology
B. geology
C. microbiology
D. embryology
Answer:
|
A
|
sciq
|
What does the esophagus connect to at its bottom end?
A. the colon
B. the large intestine
C. the stomach
D. the larynx
Answer:
|
C
|
sciq
|
Hair is a component of which bodily system?
A. circulatory
B. integumentary system
C. trypeta system
D. relatable system
Answer:
|
B
|
sciq
|
What type of electrons are electrons that are not confined to the bond between two atoms?
A. delocalized
B. virtualized
C. internalized
D. detached
Answer:
|
A
|
sciq
|
Electrons flow through wires to create what?
A. electromagnetism
B. hydroelectric power
C. electric current
D. balanced reaction
Answer:
|
C
|
sciq
|
The ileocecal valve, a sphincter, is usually in a constricted state, but when motility in the ileum increases, this sphincter relaxes, allowing food residue to enter the first portion of what?
A. liver
B. small intestine
C. colon
D. large intestine
Answer:
|
D
|
sciq
|
A sequence of amino acids in single polypeptide is the primary structure for what?
A. lipids
B. dna
C. cells
D. proteins
Answer:
|
D
|
sciq
|
What type of chemicals do ants communicate with?
A. pheromones
B. pesticides
C. hormones
D. Alkanes
Answer:
|
A
|
sciq
|
The age of a rock in years is its?
A. geological age
B. chemical age
C. full age
D. absolute age
Answer:
|
D
|
sciq
|
What organ eliminates solid wastes that remain after the digestion of food?
A. the large intestine
B. the spleen
C. the bladder
D. the appendix
Answer:
|
A
|
sciq
|
What is the term for when a species no longer exists?
A. reproduction
B. survival
C. extinction
D. endangered
Answer:
|
C
|
sciq
|
What is the jelly-like material in which the contents of the cell are suspended?
A. cytosol
B. jam
C. mitochondrial
D. cortisol
Answer:
|
A
|
sciq
|
What is the release of energy in the form of high energy electromagnetic waves?
A. x-ray emission
B. normal emission
C. transient emission
D. gamma emission
Answer:
|
D
|
sciq
|
Today, new elements are usually named after famous scientists. the names of the elements can be cumbersome to write in full, especially when combined to form the names of compounds. therefore, each element name is abbreviated as a one- or two-letter chemical this?
A. notation
B. symbol
C. shorthand
D. title
Answer:
|
B
|
sciq
|
An infection may be intracellular or extracellular, depending on this?
A. pathogen
B. bacteria
C. pollen
D. microbes
Answer:
|
A
|
sciq
|
Like all tetrapods except birds and mammals, frogs possess a heart with what structure?
A. four chambers
B. three chambers
C. One Chamber
D. eight chambers
Answer:
|
B
|
sciq
|
Energy is the capacity to do work or to produce what?
A. humidity
B. vibration
C. heat
D. light
Answer:
|
C
|
sciq
|
In mammals, sound waves are collected by the external, cartilaginous part of the ear called the pinna, then travel through the auditory canal and cause vibration of the thin diaphragm called the tympanum or this?
A. speaker drum
B. microphone drum
C. ear drum
D. head drum
Answer:
|
C
|
sciq
|
Unlike ionic compounds, covalent compounds do not have freely moving what?
A. atoms
B. electrons
C. Nuclei.
D. neutrons
Answer:
|
B
|
sciq
|
How do seed plants benefit from herbivores?
A. consumption of seeds
B. dispersal of seeds
C. radiation of seeds
D. rainfall of seeds
Answer:
|
B
|
sciq
|
What is the process in which cells make proteins called?
A. factor synthesis
B. protein synthesis
C. light synthesis
D. gas synthesis
Answer:
|
B
|
sciq
|
How do you decrease errors in an experiment?
A. ask God
B. write about it
C. decrease measurements
D. take many measurements
Answer:
|
D
|
sciq
|
What term describes scientists who debate the origin of the earliest plants?
A. protobotanists
B. paleobotanists
C. archaebotanists
D. specialists
Answer:
|
B
|
sciq
|
What anatomical system is made up of neurons and glia?
A. nervous system
B. digestive system
C. lymphatic system
D. reproductive system
Answer:
|
A
|
sciq
|
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