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dgen

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**blank** of change is undergone when the physical properties of a substance are changed
[ "thermal", "genetic", "atmospheric" ]
physical
Calcium ion is an example of **blank** kind of messenger
[ "third", "fourth", "first" ]
second
Aspirin and ibuprofen reduce pain by inhibiting the synthesis of **blank**
[ "triglycerides", "lipids", "hormones" ]
prostaglandins
the process by which water moves through semi-permeable membranes from one part of the body to another is **blank**
[ "diffusion", "electrolysis", "mitosis" ]
osmosis
the basis of nervous tissue are **blank**
[ "erythrocytes", "lipocytes", "osteoclasts" ]
neurons
Layers of **blank** create a volcano
[ "rock", "limestone", "crust" ]
lava
Non-human organisms that mainly consume plants/other primary producers are known as **blank**
[ "amphibians", "carnivores", "omnivores" ]
herbivores
Each of **blank** paired organs is enclosed within a cavity surrounded by the pleura
[ "bones", "ovaries", "heart" ]
lungs
the best-known extinct vertebrates are **blank**
[ "snakes", "trees", "trilobites" ]
dinosaurs
**blank** is less risky for the mother
[ "gastrointestinal", "atypical", "mutation" ]
marsupial
**blank** of eclipse happens when a full moon moves through earth 's shadow
[ "cycle", "solar", "planetary" ]
lunar
Dynamite is an example of **blank** type of potential energy
[ "carbon", "mineral", "thermal" ]
chemical
**blank** located on chromosomes control characteristics of life and are passed from parents to offspring
[ "eggs", "axons", "cells" ]
genes
**blank** of organisms helps hold soil in place to slow erosion
[ "flowers", "bacteria", "animals" ]
plants
**blank** is named after the roman goddess of love
[ "Neptune", "Mercury", "Jupiter" ]
venus
the simplest organic compounds are **blank**
[ "proteins", "enzymes", "carbohydrates" ]
hydrocarbons
Plants require air , water , nutrients , and **blank** in order to live and survive
[ "money", "gravity", "entertainment" ]
light
the first true tetrapods , vertebrates with four limbs are **blank**
[ "fish", "reptiles", "mammals" ]
amphibians
In most fungi , the haploid nuclei contributed by each parent do not do **blank** right away
[ "filter", "disperse", "vaporize" ]
fuse
telomere is shortening associated with **blank**
[ "sleeping", "reducing", "changing" ]
aging
**blank** happens to the pressure when more gas is added to a rigid container
[ "occurs", "changes", "Higher" ]
increases
Often represented by an arrow , a vector is a measurement that has both size and **blank**
[ "pressure", "location", "reason" ]
direction
A solenoid wrapped around a bar of iron or other ferromagnetic material forms **blank**
[ "impoundment", "compass", "compress" ]
electromagnet
Enzymes can catalyze up to several million reactions per **blank**
[ "minute", "hour", "day" ]
second
Unipolar , bipolar , multipolar , and pseudounipolar are the four basic types of **blank**
[ "ions", "protons", "electrons" ]
neurons
**blank** families are known quarks divided into
[ "two", "five", "four" ]
three
Yeasts , molds , and mushrooms are all different kinds of **blank**
[ "pollen", "bacteria", "fossil" ]
fungi
the term for the preserved remains or traces of organisms that lived in the past is **blank**
[ "corals", "bones", "detritis" ]
fossils
All of the elements in group 9 have nine of **blank** electrons
[ "shell", "ionic", "gradient" ]
valence
**blank** must be combined with a halogen to give it a positive oxidation number
[ "nitrogen", "calcium", "carbon" ]
oxygen
When a stream or river slows down , it starts dropping its **blank**
[ "fragments", "organisms", "pollutants" ]
sediments
The chemical and/or physical agents that cause mutations are called **blank**
[ "dioxins", "organelles", "genes" ]
mutagens
the force that opposes motion between two surfaces that are touching is **blank**
[ "tension", "vibration", "gravity" ]
friction
Skeletal , cardiac , and smooth are all types of **blank**
[ "Nervous", "Epithelial", "Connective" ]
muscle
Traits may also be controlled by multiple alleles or multiple **blank**
[ "chromosomes", "lesions", "eggs" ]
genes
a mixture of a solute in a solvent is called **blank**
[ "link", "structure", "transition" ]
solution
Silver is an example of a mineral containing only one kind of **blank**
[ "matter", "mass", "chemical" ]
element
**blank** of matter makes up most of the universe
[ "carbon", "liquid", "gas" ]
plasma
Proteins are polymers of **blank** kind of acids
[ "lipids", "lactic", "acetic" ]
amino
the official name for the study of life is **blank**
[ "chemistry", "geology", "botany" ]
biology
the dinosaur genus that 's closest to modern birds is **blank**
[ "sauropods", "diplodocus", "Rapter" ]
deinonychus
**blank** are formed when cells from the male and female parts of the plant combine
[ "varieties", "trees", "atoms" ]
seeds
another name for anther pollen sacs is **blank**
[ "ganglia", "Megasporangia", "Gametangia" ]
microsporangia
**blank** is used to describe the variety of life and its processes , including the variety of living organisms , the genetic differences among them , and the communities and ecosystems in which they occur
[ "biosphere", "habitat", "evolution" ]
biodiversity
A rock that contains important minerals is called **blank** , a term associated with mining
[ "jewel", "coal", "gem" ]
ore
Convection is the heat transfer by the macroscopic movement of a **blank**
[ "gravity", "gases", "tissue" ]
fluid
**blank** is often caused by what
[ "calcium", "inflammation", "viruses" ]
tumor
**blank** secretes growth hormones
[ "pineal", "adrenal", "thyroid" ]
pituitary
**blank** of rock layer makes up the bottom of an aquifer
[ "invisible", "porous", "crystalline" ]
impermeable
The amniotic egg is a shared ancestral character for **blank** clade
[ "trichina", "xerophyte", "avian" ]
amniota
Lyme disease is caused by **blank** kind of organim
[ "Virus", "bacterium", "algae" ]
bacteria
the side to side movement of the mandible is called **blank**
[ "twitching", "cycling", "shifting" ]
excursion
plants that grow on other plants are called **blank**
[ "fungi", "parasites", "bryophytes" ]
epiphytes
nectar-feeding bats do to flowers **blank**
[ "defecate", "illuminate", "consume" ]
pollinate
Ecological succession refers to the change in the numbers and types of species that live in **blank** groups
[ "movements", "colonies", "biomes" ]
communities
**blank** is characterized by sensory organs , the ability to move , internal digestion and sexual reproduction
[ "protists", "plants", "fungi" ]
animals
Foodborne illness , food allergies , or a food intolerance cause symptoms in **blank** system
[ "respiratory", "circulatory", "skeletal" ]
digestive
the process of breaking an individual into parts followed by regeneration is called **blank**
[ "minimization", "erosion", "destruction" ]
fragmentation
The left atrium receives oxygen-rich blood from **blank** organs
[ "pancreas", "brain", "liver" ]
lungs
If the water vapor condenses in liquid droplets as clouds form , **blank** is released in the atmosphere
[ "oxygen", "hydrogen", "electricity" ]
heat
An increase in the number of gas molecules in the same volume container causes **blank** to increase
[ "friction", "energy", "power" ]
pressure
induction cooktops have **blank** under their surface
[ "Chambers", "clumps", "screws" ]
electromagnets
**blank** types of molecular orbitals can form from the overlap of two atomic s orbitals on adjacent atoms
[ "three", "six", "ten" ]
two
**blank** is the term for groups of cells with a similar appearance and a common function , and describes how cells are organized
[ "muscle", "heart", "kidney" ]
tissue
**blank** are made of one carbon and four hydrogen atoms
[ "fats", "proteins", "particles" ]
hydrocarbons
Atoms of different elements have different numbers of **blank**
[ "electrons", "neutrons", "nucleus" ]
protons
The lancelet lacks **blank** feature that distinguishes vertebrates
[ "feet", "skin", "mouth" ]
backbone
a reptiles skin is covered in to protect them from drying out **blank**
[ "bacteria", "oil", "dye" ]
scales
In sexual reproduction , the fusion of haploid gametes forms a diploid cell called **blank**
[ "gonad", "fetus", "gamete" ]
zygote
**blank** provides clear evidence of evolution
[ "biologists", "extinction", "mutations" ]
fossils
About half of **blank** type of radiation is absorbed in the first 15 meters of water
[ "surface", "polar", "natural" ]
solar
**blank** begins with a diploid cell and ends with four haploid cells
[ "electrolysis", "mitosis", "urinalysis" ]
meiosis
Two smaller isotopes , more neutrons , and heat energy are the products of **blank** type of reaction
[ "Reaction", "diffusion", "fusion" ]
fission
a disease is caused **blank** by the same virus that causes chicken pox
[ "gout", "diabetes", "hepatitis" ]
shingles
In a solution **blank** is the substance a solute dissolves in is called
[ "particles", "gas", "atoms" ]
solvent
it is called **blank** when sound is reflected off an object
[ "signal", "amplification", "reverberation" ]
echo
Most modern seed plants are angiosperms , which produce seeds in the ovaries of **blank** basic structure
[ "stems", "cells", "leaves" ]
flowers
Farming practices leave some soil exposed and vulnerable to **blank** natural process
[ "migration", "rust", "sediment" ]
erosion
Matter is made up of a mixture of things called **blank**
[ "segments", "compounds", "structures" ]
elements
There are 20 different common amino acids needed to make **blank** organic compound
[ "lipids", "nutron", "cells" ]
proteins
Some types of minerals form balls called **blank**
[ "cancers", "microbes", "fistulas" ]
nodules
According to the special theory of relativity , no physical object can equal or exceed the speed of **blank**
[ "air", "energy", "weight" ]
light
you call water that flows out of the ground where an aquifer meets the surface **blank**
[ "oasis", "waterfall", "stream" ]
spring
you call the basic units of the structure and function of living things **blank**
[ "molecules", "enzymes", "proteins" ]
cells
the conversion of a solid to a gas is called **blank**
[ "speciation", "amplification", "education" ]
sublimation
**blank** does the inside of all cells also contain
[ "chloroplasm", "protein", "chromosomes" ]
cytosol
Known for its beautiful rings , **blank** is the second largest planet in the solar system
[ "Mars", "jupiter", "Venus" ]
saturn
**blank** is used to describe a cancer that has spread
[ "destabilized", "galvanized", "ostracized" ]
metastasized
the cure of cancer is known as **blank**
[ "metabolism", "rejuvenation", "regeneration" ]
remission
the outer layer of the exoskeleton is called **blank**
[ "bristle", "epidermis", "epithelium" ]
cuticle
insects begin developing their wings in **blank**
[ "crystalline", "larva", "pupal" ]
pupa
The speed of sound depends on **blank**
[ "light", "volume", "temperature" ]
medium
While elements are represented by chemical symbols , chemical formulas represent **blank**
[ "extracts", "pollutants", "solutions" ]
compounds
the transition from solid to vapor is called is **blank**
[ "vaporization", "deposition", "ionization" ]
sublimation
Trees , which can be planted and harvested , are an example of **blank** type of resource
[ "electric", "fossil", "geothermal" ]
renewable
usually the most visible part of the flower is **blank**
[ "cells", "seeds", "roots" ]
petals
The interaction between atomic orbitals is greatest when they have the same **blank**
[ "temperature", "mass", "fuel" ]
energy
different versions of a gene are known as **blank**
[ "modes", "ion", "genomes" ]
alleles
All chemical reactions involve both reactants and **blank** else
[ "consumers", "catalysts", "energy" ]
products
Potassium hydroxide in soap is an example of **blank**
[ "enzyme", "catalyst", "acid" ]
base