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iris [78.8K]
2 years ago
15

What percentage of sheep had a body height of 1.2 meters or more 30 years ago? How does it differ from the present data? Does th

is data support your argument regarding the type of selection occurring?
Biology
1 answer:
Marysya12 [62]2 years ago
8 0

Answer:Thirty years ago, 45 out of 200 individuals, or 22.5% of individuals, were at least 1.2 meters tall. Presently, 50.5% of individuals are at least 1.2 meters tall. Meanwhile, individuals below 1.2 meters in height have decreased significantly between the two years of data. This data supports the argument that directional selection is occurring.

Explanation:

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Bones in your joints are covered with a smooth and slippery material called cartilage. true or false. .
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It is true that bones <span>in your joints are covered with a smooth and slippery material called cartilage.
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2 years ago
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use the samples; diamond, dolomite, gneiss, and chalk and provide your analysis of composition and identification based on their
Trava [24]

Answer:

Diamond-

Physical identification characters:

Color-  White or Colorless

Lusture - admantine

Streak - Colorkess

Habit - Hour glass structure

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Specific gravity-3.5

Dolomite (CaMg(CO3)2

Color - Colorless or white

Hardness is between 3-4

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Gneiss

Light and dark strip or banding present alternatively

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Quartz, Feldspar have  Felsic mineral for light banding

High grade metmorphic rock which is formed due to regional metamorphism of lower grade rock

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4 0
2 years ago
The first invertebrates to develop a true nervous system are
Rina8888 [55]

Answer:

Coelenterates are the first invertebrates to develop a true nervous system.

Explanation:

3 0
2 years ago
Mafic lava tends to have low silica content. Based on this, which of the following statements about mafic lava is most likely tr
sashaice [31]

Answer:

A. It contains fewer volatile gases.

Explanation:

Mafic lava have a composition of about 45-55% silica with high amount of Fe, Mg, Ca.

The silica content is quite low compared to those of granitic magma whose silica content can reach up to about 60%.

What determines the viscosity of magma is basically the silica content of the magma and the temperature of the magma. Viscosity is the resistance to flow.

The higher the silica content, the lower the viscosity and the higher the amount of volatile gases. Such type of magma is the granitic magma. Granitic magma due to their viscosity flows slowly.

The lower the silica content, the higher the viscosity and the lesser the presence of volatile gases in them. Such an example is Mafic magma. Mafic magma flows very slowly with low amount of dissolved gases.

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2 years ago
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NemiM [27]

Answer:

Explanation: The fragmented forests affect the growth rate population since its' not connected. When a habitat is not connected it creates only tiny pockets of places where a species can live. When a species is already so small it's even less in an already small area leading to reduction in growth.

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