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3 years ago

An example of a testable question that could be investigated

Biology

1 answer:

jasenka [17]3 years ago

7 0

What are the effects of the amount of sunlight received by a plant?

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2. What happens to the spectral lines of a star

Lelu [443]

Answer:

A. The light waves squeeze together increasing wavelength

Explanation:

5 0

3 years ago

During which stage is the placenta form completely???? Plz help I’ll give u the brain kissy answer

zloy xaker [14]

The placenta forms at 8 weeks, and develop for 6 weeks. hope this helps

6 0

3 years ago

How did sir francis believe the basic laws of science should be determined

REY [17]

Sir Francis Bacon believe basic laws of science should be determined by using deductive reasoning based on empirical evidence.

8 0

3 years ago

Several cities have now banned __________, which are a type of fat.

Furkat [3]

The correct answer is "trans fatty acids".

Trans fatty acids (colloquially as trans fats) are a type of unsaturated fatty acids wherein instead having its double bonds in the cis configuration giving the fatty acid "kinks" in the molecules making it more soluble; the double bonds in trans fats are in the trans configuration (hence the name) and this will not give the molecule kinks making it less soluble. Less soluble trans fats are notorious in depositing in peripheral arteries as well as in coronary arteries that increase the risk for developing atherosclerosis.

4 0

3 years ago

You are an almond grower and want to determine whether almond size (measured as shelled almond weight) is a heritable trait. A s

inn [45]

Answer: 1. S = 0.77

2. R = 0.14

Explanation:

1. Selection differential is the difference between the population mean and the average of the selected parents. Its symbol is S.

S = mean of selected parents - population mean

S = 6.48 - 5.71

S = 0.77

2. Response to Selection is how much gain you make when crossing over selected parents. Its symbol is R.

R = mean of offspring of selected parents - population mean

R = 5.85 - 5.71

R = 0.14

3. Heritability is, basically, a statistical variable that shows how much the variation in a trait is due to genetic factors. Its symbol is h².

To calculate it, use Breeder's Equation:

R = h²S

$h^{2}=\frac{R}{S}$

$h^{2}=\frac{0.14}{0.77}$

h² = 0.18

4. You would expect the production to be strongly influenced by environment, because heritability lies between 0 and 1. Low heritability means there is low level of resemblance between offspring and parents. As this program heritability is low, the resemblance is small, which means the characteristics are influenced mostly by the enviroment.

7 0

3 years ago