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trees that lose their leaves during winter are called **blank** | [
"fruits",
"fungus",
"coniferous"
] | deciduous |
Gametogenesis , the production of sperm and eggs , takes place through the process of **blank** | [
"mutations",
"gametes",
"osmosis"
] | meiosis |
the name of the roundworms digestive organ is **blank** | [
"intestine",
"tube",
"stomach"
] | gut |
Oxides contain one or two metal elements combined with **blank** | [
"nitrogen",
"carbon",
"ethanol"
] | oxygen |
**blank** of evolution happens when two species evolve the same traits | [
"divergent",
"associated",
"multiplicative"
] | convergent |
What increases **blank** a muscle like a biceps is extended | [
"weight",
"speed",
"momentum"
] | force |
Hot magma beneath the surface mixes with water and forms **blank** | [
"hydrocarbons",
"liquids",
"lava"
] | gas |
electrical force have **blank** of attraction | [
"similar",
"neutral",
"positive"
] | negative |
The different types of nuclei are referred to as **blank** | [
"organelles",
"atoms",
"rhizomes"
] | nuclides |
**blank** has the least amount of energy in an atom | [
"crystals",
"protons",
"rings"
] | electrons |
the visible surface of the sun is called **blank** | [
"chronosphere",
"stratosphere",
"ionosphere"
] | photosphere |
Wind or water that travels toward the poles from the equator curves in **blank** direction | [
"west",
"downward",
"upward"
] | east |
**blank** is defined as the ability to cause changes in matter | [
"pressure",
"fuel",
"transcription"
] | energy |
plants use **blank** to make food for themselves and most other organisms | [
"heat",
"electricity",
"gravity"
] | light |
**blank** measures atmospheric pressure and can be used as an altimeter | [
"thermometer",
"speedometer",
"indicator"
] | barometer |
solid-solid solutions like brass and bronze are called **blank** | [
"oxides",
"mixtures",
"amalgams"
] | alloys |
the main element in organic compounds is **blank** | [
"oxygen",
"helium",
"hydrogen"
] | carbon |
Desertification can result from slash-and-burn agriculture , which causes loss of **blank** | [
"fertilizer",
"subsoil",
"sediment"
] | topsoil |
Cancers are caused by a series of **blank** | [
"adaptations",
"parasites",
"microbes"
] | mutations |
**blank** is defined as the preserved remains or traces of organisms that lived during earlier ages | [
"taxidermy",
"archaeology",
"deposits"
] | fossils |
Reduction often involves the gain of hydrogen , the loss of oxygen , or the gain of **blank** | [
"mass",
"protons",
"neutrons"
] | electrons |
the moon 's shadow 's inner part is called **blank** | [
"mullah",
"penumbra",
"aurora"
] | umbra |
Each parapodium has numerous chaetae , bristles made of **blank** | [
"ricin",
"lectin",
"casein"
] | chitin |
**blank** includes sponges , which are aquatic invertebrates | [
"chordata",
"mollusca",
"hymenoptera"
] | porifera |
**blank** has the highest electronegativity value | [
"chlorine",
"magnesium",
"Barium"
] | fluorine |
When small particles , such as clay and silt , are in mixed in water but do not disolve in the water , **blank** state are they in | [
"mud",
"incomplete",
"sedimentation"
] | suspension |
When a person stands on the floor , his feet exert **blank** on the surface | [
"acceleration",
"power",
"resistance"
] | pressure |
Molds that grow on bread are from **blank** kingdom | [
"animal",
"yeast",
"pollen"
] | fungi |
The frequency of sound waves is measured in **blank** , or the number of waves that pass a fixed point in a second | [
"avis",
"Ohms",
"watts"
] | hertz |
In a position-time graph , **blank** does the slope of the line represent | [
"position",
"time",
"direction"
] | velocity |
Salmon must do **blank** when they migrate from freshwater to the ocean | [
"regenerate",
"adapt",
"synthesize"
] | acclimatize |
**blank** occurs when two free radicals come in contact with each other | [
"assimilation",
"radiation",
"cancellation"
] | termination |
Despite the season , **blank** aspect of constellations never change | [
"colors",
"size",
"location"
] | patterns |
the members of the clade vertebrata is known as **blank** | [
"invertebrates",
"grasses",
"lipids"
] | vertebrates |
**blank** helps maglev trains go very fast | [
"rollers",
"wheels",
"gravity"
] | magnets |
A glacier is an example of h20 in **blank** state of matter | [
"stable",
"liquid",
"gas"
] | solid |
Fires , mainly caused by **blank** , are a natural disturbance in temperate grasslands | [
"campfires",
"humans",
"cigarettes"
] | lightning |
Nucleic acids are found in all living cells and also **blank** | [
"parasites",
"fungi",
"bacteria"
] | viruses |
Mollusks can be divided into **blank** many classes | [
"four",
"nine",
"three"
] | seven |
the term for a partial degradation of glucose without the use of oxygen is **blank** | [
"segregation",
"condensation",
"oxidation"
] | fermentation |
Ground collapse , associated with chambers of **blank** substance , leads to formation of a caldera | [
"molten",
"stone",
"lava"
] | magma |
the process by which rocks and other sediments are picked up by a glacier is **blank** | [
"pulling",
"freezing",
"picking"
] | plucking |
Genetic variation produced in sexual life cycles contributes to **blank** process | [
"deconstruction",
"maturity",
"generation"
] | evolution |
Cellular innate defenses in vertebrates also involve natural killer **blank** | [
"nerves",
"proteins",
"lipids"
] | cells |
**blank** involves people quickly finding destinations using polar coordinates | [
"patterning",
"sticking",
"mapping"
] | orienteering |
**blank** in biotechnology means a genetically exact copy of an organism | [
"adult",
"male",
"phenotype"
] | clone |
Vertebrata are characterized by the presence of **blank** | [
"Bones",
"Muscles",
"Thumbs"
] | backbone |
the height above or below sea level is called **blank** | [
"depth",
"latitude",
"variation"
] | elevation |
dominant in temperate forests is **blank** of tree | [
"vines",
"fungus",
"shrubs"
] | deciduous |
**blank** are by far the most common type of invertebrate | [
"spiders",
"crustaceans",
"corals"
] | insects |
**blank** means the amount of water vapor in the air | [
"temperature",
"pressure",
"ambient"
] | humidity |
**blank** happens when mammals raise their hair with tiny muscles in the skin | [
"bleeding",
"balding",
"bruising"
] | goosebumps |
Upon death of an organism , during composition , **blank** returns to the soil as ammonium ions | [
"potasium",
"calcium",
"hydrogen"
] | nitrogen |
Digestion of proteins begins with acids in **blank** organ | [
"colon",
"liver",
"brain"
] | stomach |
the most abundant metal of the earth 's crust is **blank** | [
"calcium",
"copper",
"magnetite"
] | aluminum |
**blank** of the eye allows light to enter | [
"eyelid",
"retina",
"iris"
] | pupil |
**blank** of muscle regulates air flow in lungs | [
"vascular",
"striated",
"alveoli"
] | smooth |
The temperature at which a substance melts is called its **blank** point | [
"boiling",
"change",
"freezing"
] | melting |
Humans are among the most versatile of mammals with **blank** type of diet | [
"carnivore",
"herbivore",
"vegetarian"
] | omnivore |
**blank** is required to move or change matter from one state to another | [
"food",
"gravity",
"evolution"
] | energy |
**blank** contains positive protons and neutral neutrons | [
"electrons",
"ions",
"epidermis"
] | nucleus |
**blank** control the amount of water , ions , and other substances in the blood by excreting more or less of them in urine | [
"lungs",
"tongue",
"ears"
] | kidneys |
fungi which feed on living cells are called **blank** | [
"static",
"predatory",
"symbiotic"
] | parasitic |
**blank** offers the richest source of fossils | [
"metamorphic",
"igneous",
"geode"
] | sedimentary |
Isotopes are named for their number of protons plus **blank** | [
"isomers",
"electrons",
"nuclei"
] | neutrons |
In phyisics , **blank** is considered to be the rotational version of force | [
"work",
"energy",
"pressure"
] | torque |
Skeletal muscles are attached to the skeleton by tough connective tissues called **blank** | [
"fibers",
"veins",
"cords"
] | tendons |
the ability to see called is **blank** | [
"thought",
"smell",
"hearing"
] | vision |
Water can be broken down into hydrogen and oxygen gases by the addition of **blank** | [
"motion",
"mineral",
"demand"
] | energy |
**blank** is shared by all chordates | [
"isochord",
"botachord",
"laxchord"
] | notochord |
The lithosphere is divided into a dozen major and several minor **blank** | [
"zones",
"crystals",
"faults"
] | plates |
**blank** are used to indicate the number of atoms of an element that are in the compound | [
"indices",
"suffixes",
"digits"
] | prefixes |
Anything moving has **blank** type of energy | [
"magnetic",
"potential",
"thermal"
] | kinetic |
the adaptation that certain animals use to become less visible to predators and prey is **blank** | [
"skeletons",
"speed",
"insulation"
] | camouflage |
another term for blood clotting is **blank** | [
"adulation",
"oxidation",
"differentiation"
] | coagulation |
**blank** occurs when the cell cycle is no longer regulated | [
"allergy",
"schizophrenia",
"malnutrition"
] | cancer |
Nerve cells that sense touch are found mainly **blank** | [
"stomach",
"brain",
"lungs"
] | skin |
women should perform a breast self-exam by **blank** | [
"yearly",
"weekly",
"quarterly"
] | monthly |
a fiber that is found only in mammals is **blank** | [
"muscle",
"muscle",
"feathers"
] | hair |
**blank** when secondary alcohols oxidize | [
"chromosomes",
"ions",
"electrons"
] | ketones |
Bones , cartilage , and **blank** other thing make up the skeletal system | [
"muscles",
"organs",
"lungs"
] | ligaments |
**blank** of the sperm contains the nucleus | [
"body",
"tail",
"nucleus"
] | head |
the smallest structural and functional unit of all living organisms are **blank** | [
"neutrons",
"lipids",
"proteins"
] | cells |
Somatic cells come from the body and are not **blank** , like sperm or eggs are | [
"spores",
"toxins",
"organic"
] | gametes |
**blank** opens two strands of dna | [
"replication",
"adenylate",
"chromosome"
] | helicase |
Most hybrids are sterile because **blank** genetic structures are not homologous and can not pair during meiosis | [
"zygotes",
"ribosomes",
"phenotypes"
] | chromosomes |
Vultures , raccoons and blowflies are examples of **blank** | [
"producer",
"predator",
"consumer"
] | scavengers |
**blank** takes blood to the brain | [
"veins",
"pulmonary",
"coronary"
] | carotid |
The bohr model works only for **blank** atom | [
"helium",
"carbon",
"boron"
] | hydrogen |
**blank** has a higher metabolic rate , a mouse or an elephant | [
"rat",
"rabbit",
"elephant"
] | mouse |
the energy produced **blank** by plants come from | [
"groundwater",
"animals",
"evaporation"
] | sunlight |
The ionic end of a detergent can either be a sulfate or **blank** | [
"molecule",
"calcite",
"phosphate"
] | sulfonate |
**blank** is thought to have evolved from theropod dinosaurs around 150 million years ago | [
"insects",
"mammals",
"reptiles"
] | birds |
the protein in red blood cells which transports oxygen around the body is **blank** | [
"plasma",
"hydrogen",
"hematocrit"
] | hemoglobin |
At a synapse , **blank** objects are released to carry a nerve impulse from one neuron to the next | [
"viruses",
"receptors",
"microorganisms"
] | neurotransmitters |
All cells have a jellylike substance in which subcellular components are suspended . **blank** is that substance | [
"glycerol",
"plasma",
"cortisol"
] | cytosol |
the term for the force that brings objects toward the earth is **blank** | [
"weight",
"light",
"centrifugal"
] | gravity |
When your brain senses that your body temperature is increasing , it sends messages to the blood vessels in the skin to increase in **blank** | [
"surface",
"height",
"weight"
] | diameter |
Ingestion and propulsion are the first two steps in **blank** process that describes how humans process and consume food | [
"absorption",
"regeneration",
"respiration"
] | digestion |
a round sucker has used **blank** to suck the blood of other fish | [
"shark",
"abalone",
"moray"
] | lamprey |
Subsets and Splits