sentence
stringlengths 21
624
| distractors
sequence | answer
stringlengths 2
32
|
|---|---|---|
**blank** causes cells to divide if cytokinins are added to it | [
"osmosis",
"apoptosis",
"hyptoxin"
] | auxin |
The efficiency of a machine is a measure of how well it reduces **blank** force | [
"tension",
"vibration",
"sound"
] | friction |
**blank** happens to energy when work is done by a system | [
"stored",
"added",
"multiplied"
] | removed |
**blank** is used to describe organic compounds such as sugars and starches | [
"fats",
"proteins",
"vegetables"
] | carbohydrates |
**blank** indicates horizontal distance and are also found on the map legend | [
"spikes",
"edges",
"variations"
] | scales |
small hydrophobic molecules squeeze **blank** of diffusion through lipid molecules | [
"difficult",
"slippery",
"complex"
] | simple |
Light travels more quickly in air than **blank** | [
"earth",
"glass",
"metal"
] | water |
most cells are surrounded by **blank** | [
"fat",
"lipids",
"air"
] | water |
the term for materials that have both a defined shape and a defined volume is **blank** | [
"liquids",
"matter",
"gases"
] | solids |
Proto-oncogenes can change into oncogenes that cause **blank** | [
"Infections",
"DNA",
"Mutations"
] | cancer |
the biggest groups of stars are called **blank** | [
"cells",
"novas",
"orbits"
] | galaxies |
**blank** of energy is produced when two objects move together | [
"internal",
"kinetic",
"fluid"
] | mechanical |
incident and reflected are two types of **blank** | [
"cells",
"mirrors",
"collisions"
] | rays |
most of the earth's energy come from **blank** | [
"cover",
"fire",
"heat"
] | sun |
we call a carbohydrate formed by two monosaccharides bonding together **blank** | [
"Nitrate",
"olivine",
"calcite"
] | disaccharide |
**blank** determines how long a planet 's orbit is around the sun | [
"size",
"age",
"direction"
] | distance |
Anaerobic cellular respiration does not require the presence of **blank** ( by the very fact it is anaerobic , specifically ) | [
"carbon",
"helium",
"nitrogen"
] | oxygen |
The three-dimensional spaces with specific shapes that are components of electrons shells are known as **blank** | [
"arrays",
"isotopes",
"ventricals"
] | orbitals |
In relation to electrical current , **blank** property will a narrow wire have more of than a wide wire | [
"voltage",
"wattage",
"current"
] | resistance |
Oil and water do not mix , instead forming two distinct layers called **blank** | [
"changes",
"stages",
"surfaces"
] | phases |
the term for buildup of cell debris and cholesterol inside the arteries is **blank** | [
"fibrosis",
"phimosis",
"sclerosis"
] | atherosclerosis |
Mitosis actually occurs in **blank** phases | [
"Seven",
"six",
"two"
] | four |
b cells are produced in the body **blank** | [
"keratinocytes",
"tumors",
"lungs"
] | lymphocytes |
Three body segments , a hard exoskeleton , and jointed appendages are features of **blank** invertebrate group , which includes spider and insects | [
"annelid",
"sauropod",
"crustacean"
] | arthropod |
**blank** of mirror is shaped like the outside of a bowl | [
"slope",
"concave",
"vertex"
] | convex |
**blank** divide on their own by a process that resembles binary fission in prokaryotes | [
"protazoa",
"proteins",
"bacteria"
] | mitochondria |
tiny hairs that line the bronchi are called **blank** | [
"antennae",
"alveoli",
"flagella"
] | cilia |
**blank** of organism generally lives in or on its host | [
"predator",
"bacteria",
"insect"
] | parasite |
Like the frame of a house , **blank** gives the cell an internal structure | [
"cytoplasm",
"cellulose",
"endoskeleton"
] | cytoskeleton |
A species that benefits and harms the host organism is called a **blank** | [
"viruses",
"predators",
"host"
] | parasite |
**blank** liquid water changes to water vapor it is called | [
"absorption",
"transpiration"
] | evaporation |
Chewing insects mechanically damage plants and lessen the surface area of leaves for **blank** | [
"vegetation",
"tissues",
"nutrients"
] | photosynthesis |
Reptiles are described by **blank** term that means their internal temperature depends on the temperature of their environment | [
"zygomorphic",
"endothermic",
"actinomorphic"
] | ectothermic |
Speed , loudness , and pitch are properties of **blank** | [
"metal",
"colour",
"light"
] | sound |
Radioactive nuclei and particles are represented by **blank** symbols | [
"energy",
"greek",
"compound"
] | nuclear |
Properties of matter can be considered physical or **blank** | [
"gas",
"mineral",
"liquid"
] | chemical |
the name of the complex mixture that consists of water , proteins , fats , carbohydrates , and minerals is **blank** | [
"plasma",
"blood",
"sperm"
] | milk |
the result of unchecked cell division is caused by a breakdown of the mechanisms regulating the cell cycle **blank** | [
"gout",
"dementia",
"diabetes"
] | cancer |
the separation of ions that occurs when a solid ionic compound dissolves is **blank** | [
"combustion",
"decomposition",
"inflammation"
] | dissociation |
The main shaft of the penis is covered by relatively thick **blank** | [
"bone",
"cellulose",
"collagen"
] | skin |
the broadest category in the linnaean system is **blank** | [
"phylum",
"class",
"domain"
] | kingdom |
Reactants may also be present in such low concentrations that it is unlikely they will meet and **blank** | [
"explode",
"depart",
"melt"
] | collide |
The three main body segments of an arthropod are head , thorax , and **blank** | [
"legs",
"tail",
"gluteus"
] | abdomen |
the term for what the earth rotates on is **blank** | [
"radius",
"tip",
"compass"
] | axis |
the end product of glycolysis is **blank** | [
"fructose",
"gluclose",
"hydrolysis"
] | pyruvate |
A vector is any quantity that has magnitude and **blank** | [
"length",
"longitude",
"latitude"
] | direction |
**blank** is stored mainly in liver and muscle cells by humans and other vertebrates | [
"glucose",
"protein",
"amylopectin"
] | glycogen |
The concentration of the hydrogen ion in a solution can be calculated when **blank** is known | [
"temperature",
"velocity",
"pressure"
] | ph |
Vascular plants all have roots , stems , and **blank** | [
"beans",
"flowers",
"fruits"
] | leaves |
scientists think **blank** to be the oldest eukaryotes | [
"bivalves",
"arthropods",
"ciliate"
] | protists |
Carpal , metacarpal and phalanx bones comprise **blank** part of the body | [
"thumb",
"pelvis",
"foot"
] | hand |
the coast of california have **blank** of climate | [
"rainforest",
"tropical",
"arctic"
] | mediterranean |
Solutions of nonelectrolytes such as ethanol do not contain dissolved ions and can not conduct **blank** | [
"sound",
"current",
"light"
] | electricity |
Most diplomonads and parabasalids are found in **blank** kind of environment | [
"acidic",
"enzymatic",
"skeletal"
] | anaerobic |
Oxygen is an element in **blank** form of matter | [
"liquid",
"solid",
"plasma"
] | gas |
**blank** of science is concerned with matter and the changes that it can undergo | [
"geology",
"physiology",
"biology"
] | chemistry |
**blank** of molecules help the plasma membrane keep its shape | [
"proteins",
"magnesium",
"metabolic"
] | cholesterol |
**blank** is continuously recycled through ecosystems , what must constantly be added to an ecosystem for use by organisms | [
"hydrogen",
"fuel",
"carbon"
] | energy |
**blank** has a fixed volume but not a fixed shape | [
"mixture",
"gas",
"solid"
] | liquid |
**blank** protects the brain and spinal cord in the central nervous system | [
"neutrophils",
"dermis",
"Flexing"
] | meninges |
**blank** occur in arteries that can cause heart attacks and strokes | [
"toxins",
"tumors",
"lesions"
] | clots |
The added nutrients from fertilizer often cause excessive growth of **blank** organism | [
"mushrooms",
"sediments",
"crustaceans"
] | algae |
**blank** occurs because no surface is perfectly smooth | [
"vibration",
"gravity",
"tension"
] | friction |
the eighth planet from our sun is **blank** | [
"earth",
"mars",
"uranus"
] | neptune |
dna is located in prokaryotic cells **blank** | [
"ribosomes",
"cytoskeleton",
"mitochondria"
] | cytoplasm |
Water is considered a **blank** since it is a polar molecule with slightly positive and slightly negative charges , so ions and polar molecules can readily dissolve in it | [
"solute",
"pigment",
"osmotic"
] | solvent |
The pressure inside a container is dependent on the amount of **blank** inside the container | [
"air",
"emissions",
"liquids"
] | gas |
plant structures that contain male and/or female reproductive organs are **blank** | [
"roots",
"stems",
"leaves"
] | flowers |
Each species has a particular way of making a living which is called its **blank** | [
"habit",
"system",
"life-cycle"
] | niche |
Both the forward reaction and the reverse reaction continue to occur , so chemical equilibrium is said to be **blank** , rather than static | [
"abrasive",
"fluid",
"stable"
] | dynamic |
the watery fluid that bathes tissues and organs and contains protective white blood cells but does not contain erythrocytes is **blank** | [
"stomach",
"basil",
"secretion"
] | lymph |
**blank** openings do adult tunicates have that siphon water in and out of the body | [
"three",
"four",
"one"
] | two |
endothermic tetrapod vertebrates are most commonly called **blank** | [
"insects",
"reptiles",
"mammals"
] | birds |
Free fatty acids are carboxylic acids that contain long chains of **blank** | [
"vapors",
"lipds",
"particles"
] | hydrocarbons |
After coming apart from the crystal , the individual ions are then surrounded by solvent particles in a process called **blank** | [
"osmosis",
"ionization",
"hydrolysis"
] | solvation |
The rocks athe mid-ocean ridge are nearly free of **blank** | [
"minerals",
"scratches",
"metals"
] | sediment |
we call a simple machine that consists of a rope and grooved wheel **blank** | [
"axle",
"lever",
"pedal"
] | pulley |
you call health-promoting molecules that inhibit the oxidation of other molecules **blank** | [
"neurotransmitters",
"nutrients",
"hormones"
] | antioxidants |
In a correctly balanced equation , all coefficients must be **blank** kind of numbers | [
"prime",
"negative",
"fractional"
] | whole |
**blank** of the atmosphere do greenhouse gasses trap heat in | [
"thermosphere",
"lithosphere",
"stratosphere"
] | troposphere |
Vivipary refers to the development and nourishment of a **blank** | [
"seed",
"egg",
"nucleus"
] | embryo |
most energy that is lost to the environment lost as is **blank** | [
"gravity",
"vapor",
"precipitation"
] | heat |
the resultant waste product of photosynthesis is **blank** | [
"carbon",
"argon",
"sulfur"
] | oxygen |
the term for a measure of both speed and direction is **blank** | [
"acceleration",
"momentum",
"intensity"
] | velocity |
**blank** creates offspring that are genetically identical to the parent | [
"microscopic",
"primitive",
"sexual"
] | asexual |
Asteroids , comets , and planets move around the sun in curved paths called **blank** | [
"satellites",
"curves",
"ellipticals"
] | orbits |
The beginning of **blank** season experiences the shortest period of daylight hours | [
"spring",
"summer",
"autumn"
] | winter |
Many species of flowering plants have coevolved with specific **blank** | [
"predators",
"climates",
"spores"
] | pollinators |
**blank** has been used in brewing , winemaking and baking for thousands of years | [
"flour",
"fruit",
"oils"
] | yeast |
reptiles are unable to absorb through their skin because of scales **blank** | [
"food",
"water",
"carbon"
] | oxygen |
Candida and trichophyton are examples of disease-causing types of **blank** organisms , which become parasitic | [
"yeast",
"bacteria",
"viruses"
] | fungi |
The cultivated forms of wheat , cotton , and tobacco plants are all **blank** | [
"pores",
"sporozoans",
"bales"
] | allopolyploids |
A hydrogen atom with one neutron is called **blank** | [
"covalent",
"magnesium",
"ionic"
] | deuterium |
the process by which plants make the simple sugar glucose from carbon dioxide and water is called is **blank** | [
"glycolysis",
"metamorphosis",
"osmosis"
] | photosynthesis |
The three units of kpa , atm or mmhg commonly measure **blank** | [
"resistance",
"weight",
"energy"
] | pressure |
Besides ingesting and photosynthesis **blank** can protists get their food | [
"digestion",
"accumulation",
"osmosis"
] | absorption |
The male gametophyte releases **blank** , which swim - propelled by their flagella - to reach and fertilize the female gamete or egg | [
"cytoplasm",
"tadpoles",
"dna"
] | sperm |
While the goal of science is to increase knowledge , the goal of **blank** is to use knowledge for practical purposes | [
"advancement",
"invention",
"industry"
] | technology |
Honeybees doing the waggle dance or spiders spinning a web are examples of **blank** type of behavior | [
"intuitive",
"genuine",
"learned"
] | innate |
Birds are thought to have evolved from a group of bipedal dinosaurs called **blank** | [
"pteradactyls",
"sporozoans",
"staurikosaurus"
] | therapods |
Subsets and Splits