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stepan [7]
2 years ago
5

Helppp me A,B,C,D I need help choose one for me

Biology
1 answer:
Shkiper50 [21]2 years ago
5 0

Answer:

<em><u>A. Neither the subjects nor the researchers can bias the results.</u></em>

Explanation:

As described, a double- blind study is one in which the researcher and his study does not know the person receiving the actual treatment.

Researchers can be bias in their studies as they seek to establish and fine tune results in the way the best favors them. A double-blind study helps to bridge this gap to prevent bias that might be introduced into an experimental set up or while interpreting results.

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Luminance response can be tested with a(n) _____. i. near-range photometer ii. telescope photometer iii. illuminance meter
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Luminance response can be tested with an option(d) I or II i.e, near range photometer or telescope photometer.

The luminous intensity per unit area of light traveling in a specific direction is measured photometrically as luminance. It indicates how much light enters, exits, or is reflected from a specific area and falls within a specified solid angle.

The visual system's ability to function depends heavily on luminance and contrast. Vision is impossible without light (luminance = 0), and without contrast, we are unable to see spatial or temporal patterns. The first stage in seeing, which enables all other visual processes, is the capacity to respond to brightness.

A photometer is a tool used to gauge light's characteristics. A photometer can be used to measure a light source's brightness, color, and flux among other attributes. Photometers gather radiation released by the light source to determine the wavelengths of light and atomic emissions.

The complete question is:

Luminance response can be tested with a(n)_____.

I) near-range photometer

II) telescope photometer

III) illuminance meter

A) I only

B) II only

C) III only

D) I or II

To know more about photometer refer to:  brainly.com/question/13961371

#SPJ4

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11 months ago
What are the 2 main groups of the nervous system (type the whole name)? What is the major
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The central nervous system and the peripheral nervous system
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You are the scientific consultant for a television show about forensic analysis. In an upcoming episode, investigators will comp
AysviL [449]

Answer:

<u>DNA fingerprinting</u>

Explanation:

DNA Fingerprinting is the Laboratory technique used for various purpose and commonly in Criminal investigations. The sample taken from crime scene and the suspects are matched and observed for possible involvement of the suspect in the crime. If two samples are same then the suspect is criminal.

3 0
3 years ago
Read 2 more answers
What two gases easily diffuse through the phospholipid bilayer
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Answer:

Consider substances that can easily diffuse through the lipid bilayer of the cell membrane, such as the gases oxygen (O2) and CO2. O2 generally diffuses into cells because it is more concentrated outside of them, and CO2 typically diffuses out of cells because it is more concentrated inside of them.

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Explanation:

(in an echinoderm) each of a large number of small flexible hollow appendages protruding through the ambulacra, used either for locomotion or for collecting food and operated by hydraulic pressure within the water-vascular system.

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