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The length of the route between two points is known as **blank**
[ "velocity", "direction", "shape" ]
distance
**blank** occurs when the vapor pressure of a liquid is equal to the atmospheric pressure
[ "freezing", "melting", "evaporation" ]
boiling
the process of soil is dissolving in rain called **blank**
[ "abrasion", "sedimentation", "migration" ]
erosion
**blank** is used to descibe the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration
[ "radiation", "convection", "permeation" ]
diffusion
A source of **blank** is needed to disturb matter and start a mechanical wave
[ "magnetism", "hydrogen", "respiration" ]
energy
**blank** plants are shut off from environmental cues they become
[ "synchronized", "pollinated", "extinct" ]
desynchronized
Prokaryotes are unicellular organisms that lack organelles surrounded by **blank**
[ "particles", "cells", "tissues" ]
membranes
hydrogen bonds hold **blank** of molecules together
[ "gas", "air", "carbon" ]
water
**blank** is the study of matter and how it behaves
[ "biology", "geneology", "geology" ]
chemistry
animals that eat a prey animal are **blank**
[ "carnivores", "herbivores", "scavengers" ]
predators
Technically , **blank** cells are the only autotrophic parts of the plant
[ "yellow", "red", "brown" ]
green
flatworms have **blank** embryonic cell layers
[ "two", "four", "five" ]
three
Most of the food that they bring to their chicks is very rich in **blank**
[ "grains", "proteins", "glucose" ]
lipids
**blank** is used to describe elements with unstable nuclei
[ "explosive", "larvae", "waste" ]
radioactive
The majority of species in the phylum chordata are found in **blank** subphylum , which includes animals ranging from lampreys to mammals
[ "lophotrochozoa", "tardigrada", "organelles" ]
vertebrates
The rising and sinking of warm and cooler material is called **blank**
[ "diffusion", "insulation", "depression" ]
convection
Particles in **blank** state of matter do not experience any force of mutual attraction or repulsion
[ "plasma", "solid", "liquid" ]
gas
basic tools of the cell for organizing metabolism , transport , and storage of molecules are **blank**
[ "tissues", "membranes", "vacuoles" ]
vesicles
the term for sediment is deposited **blank** by a glacier
[ "holocene", "crater", "plateau" ]
moraine
Rubber is **blank** kind of solid
[ "inorganic", "aqueous", "porous" ]
amorphous
Ragweed and poison ivy are common causes of **blank**
[ "cancers", "mutations", "defects" ]
allergies
**blank** is calculated by dividing the mass by the volume of a certain object
[ "radius", "diameter", "median" ]
density
Electric motors transform electrical energy into **blank** other form of energy
[ "magnetic", "thermal", "solar" ]
kinetic
The largest phylum of the animal kingdom is **blank**
[ "cephalopods", "mammals", "crustaceans" ]
arthropods
an organic compound that is the primary component of natural gas is **blank**
[ "ethanol", "magnesium", "sulfur" ]
methane
Protons and neutrons are located in **blank** central part of the atom
[ "shell", "nucleolus", "radius" ]
nucleus
eudicots die from **blank** of overdose
[ "nutritional", "metabolic", "chemical" ]
hormonal
most agaves grow in **blank** of climate
[ "arctic", "rainforest", "tropical" ]
arid
Invertebrate chordates use **blank** to filter food out of water
[ "pores", "tails", "nose" ]
gills
second only to oil in worldwide trade is **blank**
[ "water", "soda", "beer" ]
coffee
Within a particular habitat , **blank** can be characterized by its size or density
[ "total", "group", "percent" ]
population
**blank** of power is generated via underground sources of heat
[ "hydrothermal", "volcanic", "solar" ]
geothermal
A homogeneous mixture composed of two or more substances is called a **blank**
[ "mixture", "element", "structure" ]
solution
the term for particles is composed **blank** of three quarks
[ "mesons", "nucleons", "tachyons" ]
baryons
**blank** of rocks form when magma cools and forms crystals
[ "sedimentary", "metarmorphic", "seismic" ]
igneous
Flagella , cilia and pseudopods are appendages that protists use for **blank** purpose
[ "gravity", "pressure", "momentum" ]
movement
the process in which cells make proteins called is **blank**
[ "catalysis", "apoptosis", "respiration" ]
synthesis
molality differ in **blank** from molarity
[ "numerator", "accuracy", "complexity" ]
denominator
Distinguished by the great red spot , **blank** planet has an upper atmosphere containing ammonia clouds
[ "saturn", "uranus", "mars" ]
jupiter
mollusks complete digestive system is called **blank**
[ "choroid", "vesicle", "thallus" ]
coelom
Kinetic energy is the energy of **blank**
[ "heat", "light", "wind" ]
motion
**blank** in a lake is likely to have more nutrients
[ "crust", "reef", "surface" ]
bottom
**blank** happens when iron is exposed to water and oxygen
[ "smoking", "shrinking", "combustion" ]
rusting
Proteins are organic compounds made up of **blank** type of acids
[ "nucleic", "enzyme", "lactic" ]
amino
Speciation is usually due to a single instance of **blank**
[ "division", "accumulation", "radiation" ]
mutation
The binary halides are an important subclass of **blank**
[ "acids", "minerals", "gases" ]
salts
Some plants can produce seeds without fertilization and this method of reproduction is known as **blank**
[ "gametes", "amoebas", "Density" ]
apomixis
atoms of the same element but with different numbers of neutrons are called **blank**
[ "variations", "masses", "electrons" ]
isotopes
**blank** of energy can move through glass much better than through paper
[ "vibrational", "sound", "heat" ]
light
Insects are the only invertebrates that can **blank**
[ "reproduce", "vocalize", "shed" ]
fly
**blank** basic structures , found in animals and plants , are organized into tissues , organs , and organ systems
[ "bones", "proteins", "seeds" ]
cells
Because of moving charged particles in its outer core , earth is **blank**
[ "laser", "antenna", "transmitter" ]
magnet
Amorphous selenium is a photosensitive **blank**
[ "electromagnet", "insulator", "diffusion" ]
semiconductor
the sources of sexual spores in a basidiocarp are **blank**
[ "stamens", "annulus", "conidia" ]
basidia
Changes to **blank** that delete , disrupt , or rearrange many loci at once are usually harmful
[ "ribosomes", "neutrons", "cells" ]
chromosomes
**blank** is stored and is maintained at normal levels in blood by the skeletal system
[ "potassium", "selenium", "magnesium" ]
calcium
the term for the change in momentum vector is **blank**
[ "variation", "release", "gravity" ]
impulse
**blank** allows humans to sit , stand , and pivot
[ "ankle", "hip", "femur" ]
knee
In a nuclear power plant , **blank** typically spins in order to produce electricity
[ "grid", "pipe", "generator" ]
turbine
**blank** do roots and stems grow
[ "orderly", "evenly", "logically" ]
indeterminately
**blank** in the air allows us to hear sound
[ "wind", "water", "rain" ]
gases
the maximum horizontal distance traveled by a projectile is **blank**
[ "span", "radius", "length" ]
range
the term for small streams is **blank**
[ "wetlands", "rivers", "canals" ]
tributaries
If a substance does not release molecules into the air from its surface , it will not have **blank**
[ "color", "taste", "temperature" ]
smell
the most important element to life is **blank**
[ "nitrogen", "calcium", "hydrogen" ]
carbon
**blank** do two tributaries come together at
[ "stream", "axis", "snake" ]
confluence
**blank** is released during dehydration synthesis
[ "helium", "air", "photons" ]
water
plant cells have **blank** in addition to a cell wall and a large central vacuole
[ "DNA", "gastropods", "chromosomes" ]
plastids
the only animal group that evolved to live on land and then back to live in the ocean is **blank**
[ "amphibians", "reptiles", "birds" ]
mammals
Global sources of inexpensive fossil fuels , particularly oil , are rapidly being **blank**
[ "weakened", "polluted", "replenished" ]
depleted
the term for a homogeneous mixture of two or more substances is **blank**
[ "element", "saturation", "compound" ]
solution
the simplest life cycle is **blank**
[ "glycolysis", "eukaryot", "meiosis" ]
haploid
Like mammals , birds have kidneys with juxtamedullary nephrons that specialize in conserving **blank**
[ "food", "blood", "air" ]
water
another term for flagella is **blank**
[ "tendrils", "dendrites", "arthropods" ]
pseudopods
Because arthropod appendages are jointed , they can do **blank**
[ "rotate", "fly", "eat" ]
bend
the main way that wind causes erosion is **blank**
[ "absorption", "filtration", "decomposition" ]
abrasion
Each hydrogen atom follows the octet rule with **blank** many pairs of electrons
[ "six", "eight", "four" ]
one
At **blank** temperatures do crystals formed by covalent molecular solids melt at
[ "hot", "scorching", "high" ]
low
One-dimensional sinusoidal waves show the relationship among wavelength , frequency , and **blank**
[ "velocity", "motion", "friction" ]
speed
Animals use saturated fatty acids to store **blank**
[ "blood", "hydrogen", "water" ]
energy
**blank** have a life cycle that includes alternation of generations
[ "fungi", "animals", "insects" ]
plants
**blank** occurs whenever an unbalanced force acts on an object
[ "compression", "inertia", "vibration" ]
acceleration
large collections of millions or billions of stars are called **blank**
[ "fragments", "universe", "orbits" ]
galaxies
the developmental process of gastropods is called **blank**
[ "regeneration", "modulation", "occlusion" ]
torsion
Eggs and sperm are not somatic cells but instead **blank** kind of cells
[ "toxins", "pollen", "Sickness" ]
germ
Regular checkups with **blank** type of specialist can detect skin cancers early
[ "endocrinologist", "nephrologist", "internist" ]
dermatologist
Increasing the surface area of solid reactants increases **blank** rate
[ "fusion", "metabolism", "breathing" ]
reaction
Epithelial cells are found in **blank** body organ
[ "lungs", "brain", "liver" ]
skin
organisms incorporate **blank** into their proteins
[ "histone", "peptide", "glutamate" ]
arginine
The legend explains features and symbols on **blank**
[ "telescopes", "compass", "earth" ]
map
Sound travels through the outer ear to the middle ear , which is bounded on its exterior by the **blank** membrane
[ "cutaneous", "serous", "mucous" ]
tympanic
Some products contain iron filings that will react with air to release **blank** type of energy
[ "physical", "mechanical", "spectral" ]
thermal
Mutations in **blank** type of regulatory gene can cause misplacement of structures in an animal
[ "dichotic", "diploid", "myogenic" ]
homeotic
**blank** biological agents that infect living hosts contain dna , yet lack the other parts shared by all cells , including a plasma membrane , cytoplasm , and ribosomes
[ "parasites", "worms", "bacteria" ]
viruses
An extensive property is a property that depends on the amount of **blank** in a sample
[ "plasma", "space", "water" ]
matter
Early types of **blank** animals were the first vertebrates that moved onto land and have true lungs , although they had to return to the water to reproduce
[ "mammals", "birds", "reptiles" ]
amphibians
Many heterocyclic amines occur naturally in **blank**
[ "gases", "nuclei", "animals" ]
plants
Population growth depends on birth rates and death rates , as well as **blank**
[ "industrialization", "communication", "marriage" ]
migration
The exchange of heat stops once **blank** property of equilibrium between the pan and the water is achieved
[ "density", "viscosity", "motion" ]
thermal
you call the preserved remains or traces of organisms that lived in the past **blank**
[ "skulls", "corals", "decomposition" ]
fossils