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3 years ago

Describe the role glaciers play in both weathering and erosion.

1 answer:

3 0

While moving in between areas of land glaciers erode the land around them, this eroded land leads to weathering from the sand and rocks eroded. Example The Grand Canyon

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Most black bears (Ursus americanus) are black or brown in color. However, occasional white bears of this species appear in some

Sphinxa [80]

Answer and Explanation:

The number of observed individuals:

AA 42

AG 24

GG 21

Total number of individuals, N= 87 = 42 + 24 + 21

Allelic frequencies:

f(p) = (2 x AA + AG)/ 2 x N

f (p)= (2 x 42 + 24) /2 x 87

f (p) = (84 + 24) / 174

f (p)= 108 / 174

f (p) = 0.62

f (q) = (2 x GG + AG)/2 x N

f (q) = (2 x 21 + 24 )/2 x 87

f (q) = (42 + 24)/ 174

f (q) = 66/174

f (q) = 0.38

p + q = 1

0.62 + 0.38 = 1

The expected genotypic frequency:

F (AA)= 0.62 ² = 0.3844

F (AG) = 2 x A x G = 2 x 0.62 x 0.38 = 0.4712

F (GG) = 0.38 ² = 0.1444

AA + AG + GG = 0.3844 + 0.4712 + 0.1444 = 1

The number of expected individuals:

AA= (0.62)² x 87 = 0.3844 x 87 = 33.44

AG= (0.4712) x 87 = 40.99

GG= (0.38)² x 87 = 12.563

Total number of expected individuals = 33.44 + 40.99 + 12.563 = 87

Chi square= sum (O-E)²/E

AA= (O-E)² /E

AA=(42 - 33.44) ² / 33.44

AA= 2.2

AB= (O-E)² /E

AB= (24 - 40.99)²/ 40.99

AB=7.04

BB=(O-E)² /E

BB= (21-12.563)²/12.563

BB= 5.66

Chi square= sum ((O-E)²/E) = 2.2 + 7.04 + 5.66 = 14.9

Degrees of freedom = genotypes - alleles = 3 - 1 = 2

p value less than 0.05

There is enough evidence to reject the nule hypothesis. The genotype frequencies are not in equilibrium.

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3 years ago

What major products are formed in alcohoilc fermentationi need the answer asap please

bearhunter [10]

Wine and alcohol beverages are the only things that i can think of

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2 years ago

The weather map shows air pressures in millibars.

dmitriy555 [2]

The weather map shows air pressures in millibars. 1008 1004 1.004 1008 21004 1008 1004 Logs -1000 1000 1000T 1-004 19.00 1000 2008 996 T004 2004. 2004 1008 Which set of conditions best describes the weather at the area of lowest air pressure? O A.) Bright sun with no wind O B.) Partly cloudy with no wind O C.) Mostly sunny with light winds O D.) Overcast skies with strong winds - did not match any image results.

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6 0

2 years ago

What are two major facets of the relationship between books and television?

zzz [600]

The book gives you more information and instructions then the television

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3 years ago

Bone can be classified as a connective tissue because it contains an extracellular matrix that surrounds widely spaced cells. Tr

kotykmax [81]

Answer:

False. Bone can be classified as a connective tissue because it provides support and structure to the body.

Explanation:

Connective tissue is those tissues that fill spaces between organs and other tissues, and also provide support to the organism. It is characterized by the presence of different types of cells separated by intercellular material synthesized by them.

The bony tissue is the principal structural and supportive connective tissue that differs from the other connective tissues because its extracellular matrix is mineralized, which makes it possible to accomplish its support and protection function due to its rigidity and hardness. The mineral that deposits in the osteoid matrix is the calcium phosphate, composing hydroxyapatite crystals. The bony tissue is a storage site of calcium and phosphate, which are available for maintaining constant the calcium blood levels according to the individual physiological needs.

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3 years ago