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In the mammal family, what is the name for hoofed animals, such as deer, sheep, goats, pigs, buffalo, elephants and giraffes?
A. ungulates
B. bovines
C. rodents
D. primates
Answer:
|
A
|
sciq
|
In the nematic phase, only the long axes of the molecules are parallel, and the ends are staggered at random intervals. in the smectic phase, the long axes of the molecules are parallel, and the molecules are also arranged in planes. finally, in thecholesteric phase, the molecules are arranged in layers; each layer is rotated with respect to the ones above and below it to give it this?
A. layer structure
B. kinetic energy
C. spiral structure
D. symmetry
Answer:
|
C
|
sciq
|
What term means the force of attraction that holds together oppositely charged ions?
A. electron bond
B. magnetic bond
C. solvent bond
D. ionic bond
Answer:
|
D
|
sciq
|
In single-celled organisms, plasma membrane extensions, such as whip-like flagella or brush-like cilia, aid in what?
A. sensation
B. sound
C. pressure
D. movement
Answer:
|
D
|
sciq
|
What is defined as male gametes that form in the testes and mature in the epididymis?
A. stereocilia
B. mucus
C. sperm
D. plasma
Answer:
|
C
|
sciq
|
All planets exhibit the same or nearly the same direction and shape of what path around the sun?
A. orbit
B. ellipse
C. nucleus
D. revolution
Answer:
|
A
|
sciq
|
What do you call a change in the dna or rna sequence?
A. degradation
B. adaptation
C. mutation
D. infection
Answer:
|
C
|
sciq
|
What is produced when hydrogen gas and oxygen gas are ignited?
A. air
B. liquid
C. water
D. Fire
Answer:
|
C
|
sciq
|
What is the term for the buildup of electric charge on an object, which can be transferred to another when touched?
A. static cling
B. static electricity
C. electromagnetic electricity
D. electric potential
Answer:
|
B
|
sciq
|
What is the basis of the classification of protists?
A. traits shared
B. tails shared
C. conditions shared
D. mutations shared
Answer:
|
A
|
sciq
|
What is the movement of animals from one place to another called?
A. extinction
B. evacuation
C. hibernation
D. migration
Answer:
|
D
|
sciq
|
What does the respiratory system exchange between the body and the outside air?
A. fluids
B. gases
C. blood
D. nutrients
Answer:
|
B
|
sciq
|
In the body, second in volume to intracellular fluid is what type of fluid, which surrounds cells that are not blood cells?
A. concomitant fluid
B. watery fluid
C. interstitial fluid
D. circuitry fluid
Answer:
|
C
|
sciq
|
How many sperm does it take to fertilize an egg?
A. 1
B. 2
C. 4
D. 3
Answer:
|
A
|
sciq
|
The volume of a regularly shaped solid can be calculated from its what?
A. density
B. mass
C. layers
D. dimensions
Answer:
|
D
|
sciq
|
What is approximately the average stroke volume in humans?
A. 80 ml
B. 75 ml
C. 65 ml
D. 70 ml
Answer:
|
D
|
sciq
|
Systemic communication through the phloem helps integrate the functions of the whole what?
A. insect
B. animal
C. plant
D. bird
Answer:
|
C
|
sciq
|
What structure shows the bonding between atoms, with dots representing available electrons?
A. string theory
B. Pascal model
C. lewis structure
D. Mendelian model
Answer:
|
C
|
sciq
|
What is a thick, dark brown or black liquid found in rock layers of the earth's crust?
A. oil
B. coal
C. propane
D. fossil fuel
Answer:
|
A
|
sciq
|
What are indestructible and constantly in motion?
A. viruses
B. crystals
C. ions
D. atoms
Answer:
|
D
|
sciq
|
What kind of reaction do you see when the concentration of reactants is higher?
A. regular reaction rate
B. faster reaction rate
C. slow reaction rate
D. constant reaction rate
Answer:
|
B
|
sciq
|
What part of a plant protects the plant cell, maintains its shape, and prevents excessive uptake of water?
A. root
B. chloroplasm
C. stem
D. wall
Answer:
|
D
|
sciq
|
The process of splitting atoms creates what kind of waste?
A. inert
B. safe
C. radioactive
D. recyclable
Answer:
|
C
|
sciq
|
Chromosomal alterations are mutations that change what?
A. Skeleton Structure
B. discovery structure
C. detected structure
D. chromosome structure
Answer:
|
D
|
sciq
|
When an atom gains or loses an electron it becames an?
A. neutron
B. electron
C. photon
D. ion
Answer:
|
D
|
sciq
|
What is a type of cell that supports neurons and maintains their environment?
A. glial cell
B. axon cell
C. interneuron cell
D. neurofilament cell
Answer:
|
A
|
sciq
|
The coordinated activities of the legume and the rhizobium bacteria depend on what between the partners?
A. fertilizer signals
B. sight signals
C. chemical signals
D. electric signals
Answer:
|
C
|
sciq
|
The purpose of scientific investigations generally is to test a what?
A. suggestion
B. question
C. hypothesis
D. theory
Answer:
|
C
|
sciq
|
The most common curved mirrors are what?
A. concave
B. solid
C. spherical
D. convex
Answer:
|
C
|
sciq
|
What type of tissue covers the outside of a plant in a single layer of cells called the epidermis?
A. dorsal
B. mucous
C. dermal
D. anterior
Answer:
|
C
|
sciq
|
In a molecular compound, electrons are shared between atoms in which type of bond?
A. corrosion
B. deformation
C. Ionic
D. covalent
Answer:
|
D
|
sciq
|
What process does water undergo to leave behind dissolved substances?
A. oxidation
B. ascension
C. evaporation
D. accumulation
Answer:
|
C
|
sciq
|
What type of proteins bind to foreign substances and attempt destruction?
A. antigens
B. antibodies
C. ribosomes
D. membranes
Answer:
|
B
|
sciq
|
Photosynthesis involves reactions that are dependent on what?
A. food
B. light
C. air
D. water
Answer:
|
B
|
sciq
|
Like simple hormone pathways, hormone cascade pathways typically involve what kind of feedback?
A. positive
B. negative
C. effective
D. neutral
Answer:
|
B
|
sciq
|
The ocean basin begins where the ocean meets what?
A. bay
B. sea
C. river
D. land
Answer:
|
D
|
sciq
|
What causes cobalt chloride to turn pink?
A. discussed 2 + ions
B. h20 + ions
C. co 2+ ions
D. show 2 + ions
Answer:
|
C
|
sciq
|
What bodily defense can be acquired in an active or passive way, and can be natural or artificial?
A. membrane
B. immunity
C. nerves
D. skin
Answer:
|
B
|
sciq
|
Like the stem, what basic plant structure contains vascular bundles composed of xylem and phloem?
A. root
B. leaf
C. flower
D. bark
Answer:
|
B
|
sciq
|
What kind of symmetry do echinoderm larvae have?
A. internal
B. spherical
C. radial
D. bilateral
Answer:
|
D
|
sciq
|
Reducing waste, as well as reusing and recycling resources, can help save what?
A. artificial resources
B. natural resources
C. eletrical resources
D. coral resources
Answer:
|
B
|
sciq
|
What is a person who studies the frequency and distribution of disease within human populations and environments called?
A. biologist
B. entymologist
C. anthropologist
D. epidemiologist
Answer:
|
D
|
sciq
|
In adaptive radiation, what is the name of the initial species that then subsequently becomes multiple other ones?
A. founder
B. pioneer
C. father
D. Mother
Answer:
|
A
|
sciq
|
The structures of both trifluoramine and hydroxylamine are similar to that of what?
A. nitrogen
B. hydrogen
C. magnesium
D. ammonia
Answer:
|
D
|
sciq
|
What protects reptiles from drying out?
A. hairs
B. sweat
C. skin
D. scales
Answer:
|
D
|
sciq
|
How many chromosomes do bacterial dna have?
A. one rectangular chromosome
B. one circular chromosome
C. one triangular chromosome
D. one simple chromosome
Answer:
|
B
|
sciq
|
What makes blue cheese blue?
A. rot
B. fungus
C. mites
D. rennit
Answer:
|
B
|
sciq
|
What type of evolution often happens in species that have symbiotic relationships?
A. coevolution
B. retrogression
C. succession
D. spontaneous evolution
Answer:
|
A
|
sciq
|
Helicopter pilots can recover from piloting errors by decreasing altitude, turning some of their potential energy into what kind of energy?
A. electrical
B. active
C. free
D. kinetic
Answer:
|
D
|
sciq
|
Rise divided by run is called what?
A. mound
B. hill
C. slope
D. steep
Answer:
|
C
|
sciq
|
Where did west nile first appear?
A. north america
B. Central America
C. North Africa
D. Southeast Asia
Answer:
|
A
|
sciq
|
How do cancer cells typically spread from one part of the body to another?
A. bloodstream
B. kidneys
C. plasma
D. liver
Answer:
|
A
|
sciq
|
The rate of the accumulation of neutral what serves as a type of population-based biological clock?
A. eukaryotes
B. prokaryotic
C. polymorphisms
D. enzymes
Answer:
|
C
|
sciq
|
The transmitted light strikes a photoelectric tube, which converts the light energy to?
A. gas
B. electricity
C. color
D. heat
Answer:
|
B
|
sciq
|
About how many grams of carbohydrates are in a typical apple?
A. 25
B. 30
C. 35
D. 20
Answer:
|
D
|
sciq
|
What is the smallest unit of a chemical element called?
A. atom
B. droplet
C. nucleus
D. cell
Answer:
|
A
|
sciq
|
What is the term for a scalar measure of how quickly an object is moving along this line?
A. speed
B. motion
C. velocity
D. force
Answer:
|
A
|
sciq
|
A redox reaction rearranges what subatomic particles?
A. water molecules
B. neutrons
C. protons
D. electrons
Answer:
|
D
|
sciq
|
What substances digest the food in the vacuole of an ingestive protist?
A. carbohydrates
B. hormones
C. lipids
D. enzymes
Answer:
|
D
|
sciq
|
What type of force allows non-polar molecules to interact?
A. london dispersion
B. experienced dispersion
C. centrifigal dispersion
D. graviitational force
Answer:
|
A
|
sciq
|
What is a thin layer of bacteria that sticks to a surface?
A. a choanocyte
B. a biolfilm
C. a monofilm
D. a spicule
Answer:
|
B
|
sciq
|
The amount of water vapor in the air and the temperature of the medium affects how fast what travels?
A. traffic
B. sound
C. light
D. colour
Answer:
|
B
|
sciq
|
An rna codon reading guu encodes for what?
A. glycine
B. valine
C. arginine
D. carbon
Answer:
|
B
|
sciq
|
Scanning acoustic microscopes use what kind of waves to scan a specimen?
A. sound waves
B. gamma waves
C. radio waves
D. heat waves
Answer:
|
A
|
sciq
|
The contents of which organ are mixed every 20 seconds?
A. pancreas
B. the metabolism
C. the stomach
D. kidney
Answer:
|
C
|
sciq
|
How many chambers are in a reptiles heart?
A. two
B. five
C. three
D. ten
Answer:
|
C
|
sciq
|
What is the opening in the front of the eye called?
A. iris
B. pupil
C. lens
D. cornea
Answer:
|
B
|
sciq
|
When salinity and pressure increase, or when temperature decreases, what happens to water density?
A. drops
B. fluctuates
C. increases
D. stays the same
Answer:
|
C
|
sciq
|
The bending of a wave around the edges of an opening or an obstacle is called this?
A. diffraction
B. sputtering
C. absorption
D. reflection
Answer:
|
A
|
sciq
|
What controls the shape of a developing zygote early in its development?
A. storage genes
B. chromosomes
C. DNA
D. gap genes
Answer:
|
D
|
sciq
|
What happens to structural genes in the presence of tryptophan?
A. they are exterminated
B. they are transcribed
C. they are not oxidised
D. they are not transcribed
Answer:
|
D
|
sciq
|
What type of pressure may build up inside the cell when water moves into a cell by osmosis?
A. osmotic pressure
B. pleasurable pressure
C. impervious pressure
D. transverse pressure
Answer:
|
A
|
sciq
|
What is the process by which plants make their own food called?
A. photosynthesis
B. fusion
C. atherosclerosis
D. fission
Answer:
|
A
|
sciq
|
Conductivity, oxidation state and physical appearance are properties that help determine whether what are metals?
A. phases
B. atoms
C. elements
D. organisms
Answer:
|
C
|
sciq
|
What specific part of the brain regulates the endocrine system?
A. parietal lobe
B. hippocampus
C. frontal lobe
D. hypothalamus
Answer:
|
D
|
sciq
|
Chemical reactions follow which laws?
A. Chemical kinetics
B. Physics Analysis
C. Archie's law
D. thermodynamics
Answer:
|
D
|
sciq
|
There are three basic types of hormones: lipid-derived, amino acid-derived, and what?
A. secreted
B. manipulated
C. peptide
D. acidic
Answer:
|
C
|
sciq
|
Fertilization occurs when an egg and sperm come together to form a what?
A. cell
B. infant
C. eukaryote
D. zygote
Answer:
|
D
|
sciq
|
The explosion of nitroglycerin, which releases large volumes of gases, is what type of reaction?
A. exponential
B. energetic
C. endothermic
D. exothermic
Answer:
|
D
|
sciq
|
What done ozone help protect against?
A. helium rays
B. x-rays
C. ultraviolet rays
D. gamma rays
Answer:
|
C
|
sciq
|
What category of food includes sugars, starches and fibers?
A. proteins
B. enzymes
C. carbohydrates
D. alcohols
Answer:
|
C
|
sciq
|
What are substances that the body needs for energy, building materials, and control of body processes?
A. molecules
B. nutrients
C. acids
D. carbons
Answer:
|
B
|
sciq
|
What law shows the relationships among temperature, volume, and pressure?
A. Law of Conservation
B. Murphy's Law
C. combined gas
D. Newton's law
Answer:
|
C
|
sciq
|
What 2 things keep polar bears warm in their arctic ecosystem?
A. thick fur, blubber
B. hibernation, thick fur
C. camouflage, blubber
D. colourful fur , blubber
Answer:
|
A
|
sciq
|
What two things are a phospholipid molecules composed of?
A. hemophillic head, and substrate tails
B. hydrophillic head , and adhesion tails
C. hydrophillic head , and hydrophobic tails
D. hydrophillic head , and substrate tails
Answer:
|
C
|
sciq
|
When plants reproduce, the offspring has characteristics similar to the?
A. grandparents
B. cousins
C. siblings
D. parents
Answer:
|
D
|
sciq
|
Algae are like plants mainly because they contain what?
A. organelles
B. cell wall
C. chloroplasts
D. cells
Answer:
|
C
|
sciq
|
The radius of an atom is defined as one-half the distance between the nuclei in a molecule consisting of two identical atoms joined by what?
A. covalent bond
B. metallic bond
C. hydrogen bond
D. ionic bond
Answer:
|
A
|
sciq
|
What is it called when a mistake occurs in dna replication.
A. mutation
B. degradation
C. radiation
D. adaptation
Answer:
|
A
|
sciq
|
Birds are thought to have evolved around 150 million years ago from what?
A. parrot dinosaurs
B. theropod dinosaurs
C. raptor dinosaurs
D. teradactils
Answer:
|
B
|
sciq
|
The mostly subterranean lifestyle of stone plants reduces water loss from evaporation and inhibits what?
A. chlorophyll
B. reactions
C. photosynthesis
D. tissues
Answer:
|
C
|
sciq
|
What is the term for the process in which an area that has never before been colonized changes through time?
A. colony succession
B. ecological succession
C. environmental succession
D. continuous succession
Answer:
|
B
|
sciq
|
All the major landmasses moved together to form one supercontinent in which period?
A. Mesozoic
B. Cenozoic
C. permian
D. cambrian
Answer:
|
C
|
sciq
|
A problem with using food chains to describe ecosystems is that some organisms can feed on or be consumed by species from more than one of what level?
A. pH level
B. biome level
C. trophic level
D. habitat level
Answer:
|
C
|
sciq
|
What is the practical application of scientific principles and discoveries to develop things that make our lives easier?
A. experiment
B. component
C. engineering
D. Movement
Answer:
|
C
|
sciq
|
In plants, a cell plate is formed during cell cytokinesis by golgi vesicles fusing at the what?
A. chromosomes plate
B. metaphase plate
C. tectonic plate
D. mitosis plate
Answer:
|
B
|
sciq
|
What is the type of volcano with a tall cone shape that you picture when picturing a volcano?
A. active
B. advanced
C. inactive
D. composite
Answer:
|
D
|
sciq
|
The amount of what entering the eyes helps control the biological clock?
A. light
B. air
C. energy
D. heat
Answer:
|
A
|
sciq
|
Protists are classified as animal-like, plant-like, or what else?
A. pathogen - like
B. bacteria - like
C. fungus-like
D. virus - like
Answer:
|
C
|
sciq
|
Satellite and schwann cells are the two types of what kind of cell found in the pns?
A. osteoclast
B. glial
C. epidermal
D. dendritic
Answer:
|
B
|
sciq
|
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