Biology, 29.05.2020 20:59 clmorcutt420
Trisha and Angeline want to do an experiment to see an expensive brand of mouse food is better for mice than a cheaper variety. They have twelve mice that they divide into "Group A" and "Group B." They decide to keep track of the following:
the weight of each mouse, including weight change and whether the mouse is overweight or underweight
the appearance of each mouse's fur: color, glossiness, smoothness, and greasiness
the apparent energy level of each mouse: lethargic, normal, hyperactive
How can Trisha and Angeline best avoid biasing their experiment?
A.
They should both make observations separately and not compare them until the experiment is over.
B.
They should choose the kind of food for each group of mice randomly each day and make sure they can't figure out which kind of food is which.
C.
They should clearly label which group of mice is getting which food so that they can compare the two groups throughout the entire experiment.
D.
The lab partner who is making and recording the observations should not know which group of mice is eating which food.
Answers: 3
Biology, 21.06.2019 19:00
Study this image. which statements best describe the rock shown? check all that apply. the grains of this rock are jagged. this rock has several coarse grains. the grains in this rock are very large. this rock has a non-banded pattern. the color of this rock is determined by its texture.
Answers: 2
Biology, 22.06.2019 11:00
Use the above pedigree for questions 1,2, and 3 1. what kind of genetic disorder is represented in the pedigree? a. recessive b. dominate refer to the pedigree in question 1. 2. is the mutated gene in this disorder located on a sex chromosome (x or y) or an autosome? a. sex chromosome b. autosome refer to the pedigree in question 1. 3. which generation has individuals that you are certain are heterozygous for the mutated gene? a. generation 1 b. generation 2 c. generation 3
Answers: 2
Trisha and Angeline want to do an experiment to see an expensive brand of mouse food is better for m...
Mathematics, 18.08.2021 16:30
English, 18.08.2021 16:30
Computers and Technology, 18.08.2021 16:30
English, 18.08.2021 16:30
Mathematics, 18.08.2021 16:30
Social Studies, 18.08.2021 16:30