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Inessa [10]
3 years ago
10

Which of the following statements shows an example of operant conditioning? A.) A chicken learns that if it pecks on a button, a

food pellet will be released into its cage. B.) Pavlov taught a dog to salivate every time it heard a bell. C.) When you grow up, you are able to perform a skill that you watched your parents perform.
Biology
1 answer:
iris [78.8K]3 years ago
4 0

Answer:

B.) Pavlov taught a dog to salivate every time it heard a bell.

Explanation:

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For class 5 f. Why are green plants called producers?​
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Green plants are called producers because they manufacture their own food with the aid of photosynthesis.

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Which joint shows the motions called elevation and depression? temporomandibular joint knee joint intertarsal joint interphalang
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Talocrural (ankle) joint
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3 years ago
The Celsius temperature scale is also something called the centigrade scale. Why is this?
valentinak56 [21]
There are three temperature scales in use today, Fahrenheit, Celsius and Kelvin.

Fahrenheit temperature scale is a scale based on 32 for the freezing point of water and 212 for the boiling point of water, the interval between the two being divided into 180 parts. The 18th-century German physicist Daniel Gabriel Fahrenheit originally took as the zero of his scale the temperature of an equal ice-salt mixture and selected the values of 30 and 90 for the freezing point of water and normal body temperature, respectively; these later were revised to 32 and 96, but the final scale required an adjustment to 98.6 for the latter value.

Until the 1970s the Fahrenheit temperature scale was in general common use in English-speaking countries; the Celsius, or centigrade, scale was employed in most other countries and for scientific purposes worldwide. Since that time, however, most English-speaking countries have officially adopted the Celsius scale. The conversion formula for a temperature that is expressed on the Celsius (C) scale to its Fahrenheit (F) representation is: F = 9/5C + 32.


Hope this helps.

4 0
3 years ago
A 10-7 is performed on a culture of bacteria in order to perform viable plate counts. From the dilution, *0.1 mL* of solution is
marishachu [46]

Answer:

66 * 10^8 CFU/mL

Explanation:

Given -

a) Number of colonies of bacteria is equal to 66

b) Total volume of the solution is equal to 0.1 mL

c) Dilution factor is equal to 10^{-7}

As we know that

CFU/mL = \frac{N * DF}{V}

Where N is the number of bacterial colonies, DF is the dilution factor and V is the volume

Substituting the given values in above equation, we get -

CFU/mL = \frac{66* 10^7}{0.1} \\= 66*10^8

5 0
3 years ago
Which of the following statements is correct?
Keith_Richards [23]

Answer:

The statement that is correct is that all cells have the same genes, but different genes are active in different cells.

Explanation:

Differentiation or specialization is a function that cells possess and is what allows them to have different types of cells and tissues.

Cell differentiation depends on genetic regulation, a mechanism that determines the specific genes that are expressed in a cell or tissue type.

All cells contain the same DNA, which is organized into chromosomes and contain the genes that determine specific characteristics. <u>There is cell differentiation because some genes can be expressed and others are suppressed, all due to genetic regulation</u>.

The other choices are wrong because:

  • <em>The eyes look different from the liver, because they have the same genes, but only some are expressed. </em>
  • <em>Differentiated cells and tissues do not lose their genes. </em>
  • <em>All cells have DNA.</em>
7 0
2 years ago
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