Experimental design

Assignment Help Biology
Reference no: EM1381787

During gym class Sally noticed that her friend Melissa always ran faster than her. Sally knew that they exercised equally, so she wondered what could cause Melissa to run so fast. Sally start to compare herself and Melissa to see what could cause the difference in speeds. She noticed that Melissa was taller and wondered if height affected speed. Sally predicted that taller people were able to run faster, but wanted to check her prediction. She asked her gym teacher if she could test her idea because the class was all girls and she thought this would help her get accurate results. Sally measured all of her classmates' height in centimeters and recorded it in her chart. Each classmate then ran one mile while Sally timed them with a stopwatch and recorded the data in seconds. She then began to review her data and look for the answer to her question.

1. What question is Sally trying to answer?
2. What made her want to answer this question?
3. What is being measured or observed in this experiment?
4. Are the observations recorded in words or numbers?
5. What factor does Sally think might cause the measurement to change?
6. What parts of the experiment were kept the same throughout?
7. Is there a standard of comparison in this experiment (something she compared everyone to)?

Reference no: EM1381787

Questions Cloud

Sociology-locus of control : In 500 words, explain what intake you can get from a sociology class. Show how to apply locus of control and how you take the external and make it as internal.
Write strategies for personnel of security organization : Write down 1,400- to 2,100-word paper in which you write strategies for personnel of security organization. The main factors in work environment which should be addressed in new department
Ramifications of company internal surveillance policies : Your manager recently sent a memo outlining new company surveillance policy. As a result of this policy, each computer on your company network will be monitored with special type of software that will alert your manager when you're using your comp..
A project to develop a county park has an actual cost : A project to develop a county park has an actual cost in month 12 of $140,000, a planned cost of $190,000, and a value completed of $180,000
Experimental design : During gym class Sally noticed that her friend Melissa always ran faster than her. Sally knew that they exercised equally, so she wondered what could cause Melissa to run so fast.
Elements of counselor identity-function : Emphasize the important elements of counselor identity, function, and ethics. Critically discuss Biblical values and insights related to your topic and personal reflections to provide biblically grounded.
What is the productivity measure of units of output : What is the productivity measure of "units of output per dollar of input" averaged over the four-year period? Show all your calculations and explain each one.
Recognize one high severity vulnerability for computer : Recognize one high severity vulnerability for each computer (if there is one). Explain vulnerability and describe control(s) to minimize risk from vulnerability.
Determine the observed genotype frequencies : You observe the following numbers of individuals of each genotype in a population, Determine the observed genotype frequencies in this populaiton?

Reviews

Write a Review

 

Biology Questions & Answers

  Assume that an enzyme requires an active site

What percent of all the enzyme molecules will have their Cys thiol in the active form at pH 8.6. Some mammals might run or fight when frightened. For both of these examples, illustrate the physiological mechanisms involved in the answer.

  Examine transcription, including such things as the location

examine transcription, including such things as the location in the cell, transcription signals, products, chemical details, and/or the amount of chromosome involved.

  Plan a controlled experiment to test the hypothesis

A subject extends his arm palm up to catch a falling object. The contact of object with the hand triggers a reflexive response in the biceps muscle. But this response is different and opposite if the object is a raw egg instead of a ball. Explain why..

  What is a population

What is a population? What is a species? You are conducting fieldwork and discover two populations of squirrels living on opposite sides of a lake. How would you design a study to determine, without disturbing the squirrels, whether these two populat..

  Gene technology

Gene technology carries with it social and ethical implications—many of which engender personal views and discussion.

  Clarify the difference in their efforts to collect oxygen

Clarify the difference in their efforts to collect oxygen. Polychaetes have lateral, fleshy parapodia beset with numerous setae, and well developed head appendages such as jaws, tentacles and eyes. What function(s) do you think about parapodia serve.

  Structure of a mammalian hormone oxtocin

The structure of a mammalian hormone oxtocin, a nine-amino acid polypeptide as follows: cys-tur-ile-glan-asn-cys-pro-leu-gly. At the carboxyl end, the -OH is replaced by an amino group.

  Express "transamination" and "oxidative deamination"

express "transamination" and "oxidative deamination"

  Enzyme that removes hydrogen from fatty acids

Assume you treated butter with a fatty acid desaturase, an enzyme that removes hydrogen from fatty acids and creates double bonds.

  Suggest a hypothesis to explain this behaviour

Eastern tent caterpillars live in sizable groups in silk nests, or tents, which they construct in cherry trees. They are among the first insects to become active in the spring, emerging very early in the season-a time while daily temperature fluctuat..

  Here compare and contrast the similarities

here Compare and contrast the similarities

  What is the total length of uncut dna molecule

sketch a diagram of the circular DNA molecule, showing the locations of the restriction sites for Ecor I and BamH I , as well as distances between them.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd