1answer.
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
iren [92.7K]
3 years ago
12

A manager wanted to test whether the amount of noise in a clothing factory affected how

Biology
1 answer:
katrin2010 [14]3 years ago
7 0

Answer:

When seeking to determine the number of shirts made by employees subjected to noise with and without the use of headphones, the dependent variable is the number of shirts made by the employee.

Explanation:

In a study or research, the dependent variable is the result of the intervention on the independent variable, which can be modified. In the case presented, the dependent variable is the quantity of shirts made by the employees, the number of which is measured at the end of the study.

It is expected that those employees who block the noise using headphones produce a greater number of shirts than those exposed totally or partially to noise.

For the other options:

  • <u><em>The amount of noise</em></u><em>. This can modified by the use or not of headphones and is the independent variable, subject to modification.</em>
  • <u><em>The type of music the employees listen to while they work</em></u><em>.  Does not represent dependent or independent variable.</em>
  • <u><em>The amount of training employees need</em></u><em>. It is not the variable being studied.</em>
You might be interested in
Plz help i will report if it is wrong
Ostrovityanka [42]

Answer:

Your answer for this is D

6 0
2 years ago
Read 2 more answers
A host organism needs time, often days, to mount an immune response against a new antigen, but memory cells permit a rapid respo
nikklg [1K]

Answer:

The answer is <em><u>D. </u></em>

Explanation:

Viruses can evade the processing and presentation of antigens, for example by interfering with the expression of MHC class I proteins, although this increases their susceptibility to be detected by natural killer cells (NK). However, some members of the herpesvirus, papillomavirus, retrovirus, poxvirus and flavivirus families have also developed strategies to escape the attack of NK cells and promote their survival, inhibiting cell apoptosis. Finally, some pathogens often change surface antigens frequently, as in the case of influenza viruses (orthomyxovirus).

The human immunodeficiency virus (HIV) affects CD4 + T cells and degrades the host's ability to counterattack with a strong cell-mediated immune response. There are so many tactics of immune evasion used by HIV, which have so far hindered the development of an effective vaccine.

7 0
3 years ago
In the context of biological anthropology, the results of a disadvantaged social environment can include one
lorasvet [3.4K]

Answer:

One with poor-quality nutrition.

Explanation:

Anthropology may be defined as the field of biology that mainly includes the study of human behavior, societies and humans. Two different types of anthropology are cultural and social anthropology.

The social environment and its consequences is included and studied in the social anthropology. The disadvantage of social environment in anthropology shows the population with the lack of proper nutrition and people suffers from the malnutrition.

Thus, the answer is one with poor-quality nutrition.

5 0
2 years ago
How long ago are prokaryotes believed to have evolved on earth? a. 3.5 million years b. 1.5 billion years c. 2 billion years d.
Anni [7]

The correct answer is d. 3.5 billion years.

Prokaryotes were the first forms of life on Earth long before simple multicellular life appeared because of their ability to withstand extreme conditions. It is believed that the first living forms were bacteria combined with archaea in the microbial mat (multi-layered sheet).


4 0
3 years ago
Read 2 more answers
A type of cellular transport is shown. Which description best identifies this type of cellular transport? Your answer: A.Osmosis
madreJ [45]

Answer:

B.Active transport, because energy is being used to move molecules against the concentration gradient

Explanation:

Substances move in and out of living cells through various transport means. Some substances move passively (without energy) while others move actively (with energy). Active transport of substances involves the movement of molecules against the concentration gradient.

Active transport moves against concentration gradient in the sense that the movement occurs from a region which is less concentrated to one which is more concentrated, hence, energy input in form of ATP is required for such transport to occur. This is the case of the cellular transport in the diagram. Therefore, it is an ACTIVE TRANSPORT because energy input (ATP) is required.

Note, Osmosis and facilitated diffusion are types of passive transport that requires no energy to occur.

7 0
3 years ago
Other questions:
  • During dna replication the original strand (attcgcgattta) was replicated as (attcggattta). what type of mutation has is present?
    13·2 answers
  • What determines whether or not a body system is likely to remain in a phylum over the course of evolution
    10·1 answer
  • How is mass spectrometry used for protein-protein interaction?
    9·2 answers
  • Leon asked Alicia to describe four things she did that morning. Alicia said that she rode her bicycle to school, spoke Spanish w
    13·1 answer
  • Sexual reproduction produces offspring _____. similar to parents but also genetically unique. genetically identical to the paren
    8·2 answers
  • The two major divisions of the nervous system are the central and the ________ nervous systems.
    15·1 answer
  • Please help...
    5·1 answer
  • What is the life span of a monkey?
    15·2 answers
  • A Lewis Dot Structure shows only valence electrons.<br> A. True<br><br> B. False
    10·2 answers
  • Scientists must use microscopes to study the cells of living things. Explain why microscopes are necessary to study cells. Then,
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!