Lucas wants to find out which frozen solid melts the fastest: soda, ice or orange juice. He pours each of the three liquids into empty cubes of ice trays, and then places the ice trays in the freezer over night. The next day, he pulls the various types of ice out and sets each cube on its own plate. He then waits and watches for each of them to melt. When the last part of the frozen liquid melts, he records the time.
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Alexis wants to find out which laundry detergent cleans the best. So, he takes a cotton sheet and cuts it up into equal squares. He stains four squares with chocolate and four with grape juice. He washes one of each of the squares in each of the 3 detergents. One from each set of squares is washes in water alone. For each wash load, he used: the same amount of water, the same amount of detergent and the same temperature of water.
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Ray wants to find out whether or not Miracle Grow really makes plants grow faster. She takes two identical pots, puts 1/2 cup of dirt into each one. Puts 3 pea plant seeds in each one, and tops each off with 1/2 cup more dirt. She waters the plants the same amount at the same time each day. The only differences is that one plant is watered with regular water, while the other is watered with water that has Miracle Grow in it.
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Answers: 1
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Biology, 21.06.2019 20:00, smhrosepetals
In a hypothetical breed of dogs, coat color is controlled by two genes. there are six different coat colors in this breed: black, brown, cream, gray, silver, and tan. consider the following crosses. cross 1: black females from a lineage of all black dogs are crossed with brown males from a lineage of all brown dogs. f1 males and females are all black. when f1 are intercrossed, f2 males and females are black or brown. cross 2: black females from a lineage of all black dogs are crossed with tan males from a lineage where all males are tan and all females are cream. f1 males are black, f1 females are gray. when f1 are intercrossed, f2 males and females are black, brown, gray, or tan. cross 3: silver females from a lineage where all females are silver and all males are gray are crossed with brown males from a lineage of all brown dogs. f1 males and females are all gray. when f1 are intercrossed, f2 males are black, brown, gray, or tan, f2 females are cream, gray, silver, or tan. select the correct statements regarding the mode of inheritance of the coat color genes. a) both genes are x-linked. b) both genes are autosomal. c) one of the genes modifies the expression of the other gene. d) each gene has an additive effect on the intensity of coat color. e) each gene independently specifies three colors. f) one of the genes is autosomal, and the other is x-linked.
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Biology, 22.06.2019 02:20, jothianddeepi
Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?
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Lucas wants to find out which frozen solid melts the fastest: soda, ice or orange juice. He pours ea...
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