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guajiro [1.7K]
3 years ago
6

Which statement is true about scientific questions?

Biology
1 answer:
Lana71 [14]3 years ago
6 0

Answer: They come from recognized knowledge gaps.

Explanation: A good scientific question, when answered, leads to other good questions.

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Is the DNA of amphibians more similar to that of bony fishes or that of jawless fishes? Please explain
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Bony fishes, because their lungs and bony limbs were inherited from their lobe-finned ancestors. (Coelacanth) it makes more sense that a vertebrate animal evolved from one who already was a vertebrate.
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Why is a large number of egg cells not a tissue?
Nat2105 [25]

Answer:

Because they are not working together

Explanation:your welcome

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3 years ago
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PLEASE HELP!! What type of mutation occurs when a nucleotide is deleted from the genetic material? inversion promotion frameshif
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the answer is frameshift because deleted one out would shild the whole sequence

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A plant breeder has determined the following variances for yield of corn in his fields:
Law Incorporation [45]

Answer:

A. VG = 80

B. Broad sense heritability = 0.80

C. Narrow sense heritability = 0.30

D. Average yield = 430 Units

Explanation:

A. Given that

VA = 30

VD = 50

VI = assumed not available

Therefore

Total genetic variance (VG) = VA + VD

= 30 + 50

= 80

VG = 80

B. Given that

VP = 100

VG = 80

Broad sense heritability, H2 = VG/VP

= 80/100

= 0.80

C. Given that

VA = 30

VP = 100

Narrow sense heritability, h2 = VA/VP

=30/100

= 0.30

D. The difference in selection = 500 - 400

= 100

Recall,

Selection response is heritability multiplied by selection differential.

That is

R = h2S

Selection differential = 100

Heritability h2 = 0.30

Selection response = 0.30 × 100

= 30units

Therefore, expected average yield = 400 + 30

= 430 Units

6 0
3 years ago
Scientists compare unknown spectra with known spectra to determine ______ the of the star.
vovangra [49]
<h2>Scientists compare unknown spectra with known spectra to determine ______ the of the star.</h2>

<h3><em><u>A.) Temperature </u></em></h3>

B.) Luminosity

C.) Composition

<h2 />
7 0
2 years ago
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