Answer:
The spectrum of a star shifts towards the blue region when the star moves towards Earth.
Explanation:
This is referred to as the Doppler shift effect. As the star moves closer to the observer, the wavelength of light it produces is ‘compressed’ hence changing its relative frequency (just like the pitch of the siren of an ambulance approaching you).
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Answer:
As the temperature increases, the kinetic energy of the molecules of the liquid increases. The movement of the molecules gradually overcomes forces of attraction between the molecules, with the result that they have greater freedom to move, over greater volumes.
Explanation:
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Westward expansion impacted American society in many ways between 1800 and 1860. <span>The westward movement began with the </span>territory<span> in 1803. This provided American's with the hope to “spread” democracy </span>around the continent<span>. Transportation evolved </span>and adjusted because the<span> westward </span>enlargement exaggerated.
<span>Westward </span>enlargement usually<span> had negative effects on the Native Americans. Native Americans were forced </span>to measure<span> on reservations. The buffalo, </span>a vital<span> resource, </span><span>experienced </span>fast<span> population decline. Military conflict between Whites and Native Americans resulted in </span>several<span> deaths.</span>
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
