Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

Browse A

Alphabetical listing with fast deep pagination.
167681 items • Page 336 / 3354

All 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
A biologist has 400 kg of nutrient A, 600 kg of nutrient B, and 300 kg of nutrie
A biologist has 400 kg of nutrient A, 600 kg of nutrient B, and 300 kg of nutrient C. These nutrients will be used to make 4 types of food, whose contents (in percent per kilogram…
A biologist has 600 kg of nutrient A, 800 kg of nutrient B and 300 kg of nutrien
A biologist has 600 kg of nutrient A, 800 kg of nutrient B and 300 kg of nutrient C. These nutrients will be used to A0 make 4 types of food, whose contents (in percent per kilogr…
A biologist has placed three strains of bacteria (denoted I, II, and III) in a t
A biologist has placed three strains of bacteria (denoted I, II, and III) in a test tube, where they will feed on three different food sources (A, B, and C). Suppose that 400 unit…
A biologist has taken a random sample of a specific type of fish from a large la
A biologist has taken a random sample of a specific type of fish from a large lake to check for levels of mercury. A 95 percent confidence interval was calculated to be 6.8 ±1.2 p…
A biologist has taken a random sample of a specific type of fish from a large la
A biologist has taken a random sample of a specific type of fish from a large lake to check for levels of mercury. A 95 percent confidence interval was calculated to be 6.8 ±1.2 p…
A biologist inserted a gene from a human liver cell into the chromosome of a bac
A biologist inserted a gene from a human liver cell into the chromosome of a bacterium. The bacterium then transcribed this gene into mRNA and translated the mRNA into protein. Th…
A biologist investigates whether the wing lengths of house flies have changed. I
A biologist investigates whether the wing lengths of house flies have changed. In 1970, before air pollution control measures went into effect, the wing size was on average 45 x .…
A biologist is currently studying two different types of bacteria. She believes
A biologist is currently studying two different types of bacteria. She believes that introducing the types of bacteria to an organic system, like the human body, may cause that sy…
A biologist is interested in constructing a 90% confidence interval for the prop
A biologist is interested in constructing a 90% confidence interval for the proportion of coyotes that survive at least one year after straying from the pack. 42 of the 350 random…
A biologist is investigating the effect of potential plant hormones by treating
A biologist is investigating the effect of potential plant hormones by treating 20 stem segments. At the end fo the observation period, he computes the following lenght averages: …
A biologist is studying an endangered species of lemur and hasfound that for som
A biologist is studying an endangered species of lemur and hasfound that for some reason on average 80% of the offspring at birthare females and 20% of the offspring are males. Su…
A biologist isolates cells that are not actively producing auxin from a section
A biologist isolates cells that are not actively producing auxin from a section of a plant stem. She places them in a culture dish with a growth medium that keeps the cells alive.…
A biologist measures the pH of a fluid sample taken from the stomach and finds i
A biologist measures the pH of a fluid sample taken from the stomach and finds it is _____ and concludes it is acidic. A) 3.75 B) 7.8 C) 8.5 D) 9.5 The Atomic number of Sodium = 1…
A biologist mixes sperm and eggs from an organism with a diploid number of 12. I
A biologist mixes sperm and eggs from an organism with a diploid number of 12. In studying the resulting zygotes, he finds five with the following chromosome numbers: 13,16,19,20 …
A biologist raised 100 populations of flies in a lab. At the beginning of the ex
A biologist raised 100 populations of flies in a lab. At the beginning of the experiment, each population had 16 flies: 8 with plain wings and 8 with striped wings. These 16 flies…
A biologist studied a population of squirrels for 15 years. During that time, th
A biologist studied a population of squirrels for 15 years. During that time, the population was never fewer than 30 squirrels and never more than 45. Her data showed that over ha…
A biologist studies photophosphorylation in isolated chloroplasts from spinach a
A biologist studies photophosphorylation in isolated chloroplasts from spinach and oxidative phosphorylation in isolated mitochondria from rat liver. He incubates the isolated org…
A biologist studying lizards, specifically Cophosaurus texanus, recorded the wei
A biologist studying lizards, specifically Cophosaurus texanus, recorded the weight (mass) in grams, snout-vent length (SVL) and hind limb span (HLS) of a random sample of 25 such…
A biologist studying the common morning glory plant ( Ipomoea purpurea ) believe
A biologist studying the common morning glory plant (Ipomoea purpurea) believes that the color of its flowers (which are either purple or pink) is controlled by a single, dominant…
A biologist used microarrays to examine how gene expression in a fish changes wi
A biologist used microarrays to examine how gene expression in a fish changes with temperature. Refer to the table showing the expression levels of four (of several thousand) gene…
A biologist wants to estimate the life expectancy L of newly discovered species
A biologist wants to estimate the life expectancy L of newly discovered species of beetle. To do this, she takes a sample of n insects and measures their life spans from birth to …
A biologist wants to estimate the number of fox dens in a large area Suppose tha
A biologist wants to estimate the number of fox dens in a large area Suppose that the actual location of these dens are as depicted in the picture below 0 0 ol o The biologist div…
A biologist was examining the length of ‘o‘opu (native fish) in 2 streams. ‘O‘op
A biologist was examining the length of ‘o‘opu (native fish) in 2 streams. ‘O‘opu length was measured (mm) Using Minitab Is there a significant difference in length between the 2 …
A biologist was keeping careful records of the time required, measured to the ne
A biologist was keeping careful records of the time required, measured to the nearest minute, for a spore culture to double in a petri dish. The number of minutes required by a sa…
A biologist wishes to estimate the effect of an antibiotic on the growth of a pa
A biologist wishes to estimate the effect of an antibiotic on the growth of a particular bacterium by examining the mean amount of bacteria present per plate of culture when a fix…
A biologist wishes to estimate the effect of an antibiotic on the growth of a pa
A biologist wishes to estimate the effect of an antibiotic on the growth of a particular bacterium by examining the mean amount of bacteria present per plate of culture when a fix…
A biologist wishes to estimate the effect of an antibiotic on the growth of a pa
A biologist wishes to estimate the effect of an antibiotic on the growth of a particular bacterium by examining the mean amount of bacteria present per plate of culture when a fix…
A biologist working in a lab adds a compound to a solution that contains an enzy
A biologist working in a lab adds a compound to a solution that contains an enzyme and substrate. This particular compound binds reversibly to the enzyme at the active site. Once …
A biologist working in a lab adds a compound to a solution that contains an enzy
A biologist working in a lab adds a compound to a solution that contains an enzyme and its substrate. This compound binds to the enzyme and decreases the rate at which the enzyme …
A biologist would like to determine which of two brands of weed killer, X or Y,
A biologist would like to determine which of two brands of weed killer, X or Y, is less likely to harm the plants in a garden at the university. Before spraying near the plants, t…
A biology 207 student sub cloned the promoterless, GFP gene from pCam -GFP into
A biology 207 student sub cloned the promoterless, GFP gene from pCam -GFP into pUC18-207 using a double digest. They used competent, prototrophic DH5??. coli cells in their trans…
A biology 207 student sub cloned the promoterless, GFP gene from pCam R -GFP int
A biology 207 student sub cloned the promoterless, GFP gene from pCamR-GFP into pUC18-207 using a double digest. They used competent, prototrophic DH5?E. coli cells in their trans…
A biology 207 student sub cloned the promoterless, GFP gene from pCam R -GFP int
A biology 207 student sub cloned the promoterless, GFP gene from pCamR-GFP into pUC18-207 using a double digest. They used competent, prototrophic DH5?E. coli cells in their trans…
A biology 207 student sub cloned the promoterless, GFP gene from pCam*-GFP1 207
A biology 207 student sub cloned the promoterless, GFP gene from pCam*-GFP1 207 using a double digest. They used competent, prototrophic DH5aE. coli cells Time left 2 transformati…
A biology 207 student sub cloned the promoterless, GFP gene from pcamR-GFP into
A biology 207 student sub cloned the promoterless, GFP gene from pcamR-GFP into puc18-207 using a double digest. They used competent, prototrophic DH5aE. coli cells in their trans…
A biology book lies on top of a physics book which lies on top of a horizontal t
A biology book lies on top of a physics book which lies on top of a horizontal table. Which of the following is a Newtonian action- reaction force pair: A. The upward force of the…
A biology class wants to perform an experiment to investigate the effect of diff
A biology class wants to perform an experiment to investigate the effect of different colors of light on seed germination. They wrap clear for red, and clear cellophane and plant …
A biology experiment wants to cancel Earth\'s magnetic field, using a 3-turn coi
A biology experiment wants to cancel Earth's magnetic field, using a 3-turn coil made from 18.29 meters (60ft) of wire. . . . a) show that this coil with diameter 1.94 meters , wo…
A biology laboratory at your university is studying the location of a person\'s
A biology laboratory at your university is studying the location of a person's center of gravity as a function of her or his body weight. They pay well and you decide to volunteer…
A biology laboratory at your university is studying the location of a person\'s
A biology laboratory at your university is studying the location of a person's center of gravity as a function of her or his body weight. They pay well and you decide to volunteer…
A biology laboratory at your university is studying the location of a person\'s
A biology laboratory at your university is studying the location of a person's center of gravity as a function of her or his body weight. They pay well and you decide to volunteer…
A biology laboratory at your university is studying the location ofa person\'s c
A biology laboratory at your university is studying the location ofa person's center of gravity as a function of her or his bodyweight. They pay well and you decide to volunteer. …
A biology professor has two graduate assistants helping her with her research. T
A biology professor has two graduate assistants helping her with her research. The probability that the older of the two assistants will be absent on any given day is 0.08, the pr…
A biology student finds a large glass bottle which can be used to grow a bacteri
A biology student finds a large glass bottle which can be used to grow a bacterial culture. She has a bacterial culture that doubles in size every minute and with the amount that …
A biology student rides her bike around a corner of radius 25 meter at a steady
A biology student rides her bike around a corner of radius 25 meter at a steady speed of 8.2 m/sec. The combined mass of the student and the bike is 87 kg. The coefficient of stat…
A biology student rides her bike around a corner of radius 25 meter at a steady
A biology student rides her bike around a corner of radius 25 meter at a steady speed of 8.2 m/sec. The combined mass of the student and the bike is 87 kg. The coefficient of stat…
A biology student wanted to test whether taking ginseng supplementswould result
A biology student wanted to test whether taking ginseng supplementswould result in improved athletic performance. He randomly selected20 students to participate in his study. Each…
A biomass fuel has the following ultimate analysis: This fuel is used in steam g
A biomass fuel has the following ultimate analysis: This fuel is used in steam gasifier to produce CO_2 and H_2. The fuel enters the gasifier at 298 K. while the steam enters at 4…
A biomedical intrumentation company sells its main product at the rate of 5 unit
A biomedical intrumentation company sells its main product at the rate of 5 units per day. The instrument is manufactured in lots run every few days. It costs the company $2000 to…
A biomedical researcher has a new theory that a certain disease has genetic root
A biomedical researcher has a new theory that a certain disease has genetic roots. If his theory is correct, in a town of 10000 people with an unusually high incidence of the dise…