answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tom [10]
1 year ago
6

A researcher finds that white bread contains more preservatives and has a higher moisture content than wheat bread. She designs

a test to determine whether the type of bread, white or wheat, affects the amount of mold growth. What must be done for the researcher to accurately measure the dependent variable?
She will need to allow mold to grow for more days on the white bread, since it contains more preservatives, to measure the dependent variable.
She will need to limit the dependent variable to white bread or wheat bread.
She will need to allow mold to grow for fewer days on the white bread, since it contains more preservatives, to measure the dependent variable.
She will need to learn out how to quantitatively measure mold growth to measure the dependent variable.
Biology
2 answers:
velikii [3]1 year ago
5 0

Answer: She will need to learn out how to quantitatively measure mold growth to measure the dependent variable.- last choices

photoshop1234 [79]1 year ago
5 0

Answer:

She will need to learn out how to quantitatively measure mold growth to measure the dependent variable.

Explanation:

In any experiment there are two types of variables, dependent and independent. Independent variable is controlled by the experimenter and its value is not affected by the experiment. Dependent variable's value depends on the independent variable and is affected by the experiment.

Here, the experiment is trying to find out the way mold growth is affected by the type of bread. Hence the type of bread is the independent variable and the mold growth is dependent variable. To measure the dependent variable correctly the researcher will have to learn to quantitatively measure the mold growth. Quantitative analysis of mold growth will give an accurate measurement of dependent variable.  

You might be interested in
You visit a huge city with millions of people. If you were to start sampling the cystic fibrosis allele from one generation to t
lys-0071 [83]

Answer:

The frequency would be stable.

Explanation:

Based on the most common symptoms of cystic fibrosis, the disease only appears on adults and elderly. This feature means that the frequency of the disease would not drop or raise because they would still reproduce and pass the allele from generation to the next, maintaining the frequency stable.    

6 0
2 years ago
When evacuating victims and endangered personnel in a severe emergency in relation to the support zone where should routes be di
Lorico [155]
When evacuating victims and personnel currently facing danger to their lives, an establishment should have a safe evacuation routes. The evacuation route should be placed in the Exclusion Zone which means that it is a large site with obstructions and not safe until the safety area is reached. Another would be developing the Contamination Reduction Zone which is designed for individuals that are facing chemical dangers. Decontamination while inside the building is inadvised but would be applied in the arrival to the said zone. An access to potential routes should be available. Obstructions like locks, blocked doors are inadvisable. Routes should be free from items that are not needed within the area. Also, multiple routes that are separated from each other is recommended for evacuating numerous amount of people at the same time or when fire blocks one, there would be another choice available.
8 0
2 years ago
Until the , only one-celled organisms lived on land, but during this period, plants became abundant.
Anestetic [448]

The answer is Silurian period (443 million to 416 million years ago). This was the era when life in the seas and oceans began to conquer land. This is associated with a period of warm climate, rising sea and ocean levels hence giving shallow-water grounds where reefs developed. Plants like bryophyte began to develop including the emergence of terrestrial arthropods






4 0
1 year ago
8. On page 8 of your textbook the authors describe an experiment in which the amount of butter is
Ulleksa [173]
Upload a picture of the page
8 0
1 year ago
A particular ant species has four pairs of chromosomes. Identify the genetic possibilities from independent assortment of a game
pantera1 [17]
In this question, the ant has 4 pairs of chromosomes. Each pair of chromosomes will be separated in a gamete, resulting 4 unpaired chromosomes. That is why gamete is called haploid or n.
That means only 1 of the 2 chromosomes that will be carried into a gamete, assuming the gene heterozygote then there would be 2 possibilities. Since each chromosome pairs can produce 2 possibilities for each male or female, their interaction will result as (2x2) 4 possibilities.
Then for 4 chromosomes would be 4^4 possibilities= 256 possibilities of offspring
8 0
1 year ago
Read 2 more answers
Other questions:
  • some protist from long,foot-like projections of their cell membrane and cytoplasm that are used for movement and to capture food
    7·1 answer
  • Marcia reported the following symptoms to her physician: severe weight loss, increased anxiety, and sweating. After several test
    7·2 answers
  • Which statement accurately describes the levels of organization? A group of cells that work together to perform a common functio
    6·2 answers
  • Insulin is a hormone that travels through the blood to cells, triggering the cells to alter metabolic processes. insulin does no
    6·1 answer
  • A team of scientists is working to formulate a drug that can treat children who are diagnosed with gigantism. Which effect shoul
    12·2 answers
  • A sodium-potassium pump _____. moves three potassium ions out of a cell and two sodium ions into a cell while producing an atp f
    8·1 answer
  • Density-dependent inhibition is explained by which of the following? As cells become more numerous, the protein kinases they pro
    7·1 answer
  • Current studies on frogs and wildlife indicate that hormonally active agents (HAAs) are __________. a. found in insecticides and
    6·1 answer
  • A wilted flower placed in a vase of water for several hours became stiff and stood erect. When it was placed in a salt solution,
    13·1 answer
  • Suppose two populations of Anolis lizards are of equal size at the beginning of an experiment. One population (the experimental
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!