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4 years ago

Explain how moth colour is genetic

Biology

2 answers:

Sidana [21]4 years ago

5 0

Answer:

this colour change was produced by a mutation in the cortex gene

Explanation:

n200080 [17]4 years ago

3 0

Answer:

this colour change was produced by a mutation in the cortex gene

Explanation:

I looked it up

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Which of the following is the type of cell division by which somatic cells divide?

lord [1]

The answer is Mitosis

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3 years ago

A biology student is studying ground squirrels in a local park. She has captured, measured, and released many ground squirrels f

Katen [24]

Answer: She is involved in Taxonomy

Explanation:

What is Taxonomy?

Taxonomy is explained as the science of giving names, classifying and describing plants , animals and microorganisms.

A taxonomists will look at form, structure, behaviour and biochemical reactions in order to put species into their classification.

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3 years ago

Hearing,vision,smell,touch_______ is the main sense that provides the information to the brain so the brain can employ critical–

masya89 [10]

The correct option is: vision

Explanation:

-We don´t think the eyes as being an extension of the brain, but they are!

-The image captured by each eye is transmitted to the brain by the optic nerve.

-It goes to the brain and once this information is processed, the brain can send a message and thus critical thinking, decision making and problem solving skills are executed.

8 0

1 year ago

Use the normal ecg trace below to determine how many seconds the trace represents as well as the heart rate.

mezya [45]

Attached is the image of the concerned ECG reading.

In reading the ECG, first you read the heart rate. To read the heart rate, you must count for the number of small boxes in between QRS complexes, specifically R-R intervals. These number of small boxes will then be used to divide 1500. In this example, there are 20 small boxes between R-R intervals. 1500 divided by 20 is 75, so the heart rate of this ECG reading is 75 beats per minute.

<em>Another way, albeit less accurate, is to count the big squares between R-R intervals and instead of dividing it by 1500, you divide it by 300.</em>

3 0

3 years ago

If the standard reduction potential of a half reaction is 0.80 V, which statement below is true for this half-reaction to procee

viva [34]

Answer

The correct is A)

Explanation:

A reduction half-reaction occurs in the cathode. The standard cell potencial (Eºcell) is higher than 0 for a spontaneous reaction. According to this, we deduce:

Eºcell = Eºr(cathode)-Eºr(anode) > 0 (spontaneous)

So, Eºr(cathode) > Eºr(anode) for a spontaneous reaction.

Since Eºr(cathode)= 0.80 V, we can say:

A) This half-reaction will proceed if it is coupled to another half-reaction that has a standard reduction potential less than 0.80 V. TRUE

For example: Eºcell = Eºr(cathode)-Eºr(anode)= 0.80 V - (0.75 V)= 0.05 V > 0

B) This half-reaction will proceed if it is coupled to another half-reaction that has a standard reduction potential greater than 0.80 V. FALSE

It is the opposite of A. For a value greater than 0.80 V, Eºcell will be <0 (non spontaneous)

C) This half reaction will proceed if it is coupled to another half-reaction that has a standard reduction potential greater than -0.80 V. FALSE

This sentence is not true in all cases. For example: a reduction potential of 1.0 V is greater than -0.80 V, so:

Eºcell= Eºr(cathode)-Eºr(anode)= 0.80 V - (1.00 V)= -0.20 V < 0

D) It doesn't matter what half-reaction this is coupled with, it will proceed. FALSE, the reduction potential of the anodic reaction must be lower than 0.80 V.

3 0

3 years ago