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geniusboy [140]
3 years ago
6

The blood group B is almost absent in Native Americans, whose ancestors arrived in very small numbers about 10,000 years ago. Wh

ich factor is responsible for this phenomenon?
a, migration effect b, founder effect c,bottleneck effect are the options
Biology
2 answers:
SOVA2 [1]3 years ago
6 0

Answer:

B) The Founder effect

Morgarella [4.7K]3 years ago
4 0
"Founder effect" is the one factor among the choices given in the question that is responsible <span>for this phenomenon. The correct option among all the options that are given in the question is the second option or option "B". I hope that this is the answer that has actually come to your great help.</span>
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Explain the difference between vegetation growth on the upwind side and the rain shadow side of a mountain
mixer [17]

Answer:

Wind and moist air is drawn by the prevailing winds towards the top of the mountains, where it condenses and precipitates before it crosses the top. The air, without much moisture left, advances across the mountains creating a drier side called the "rain shadow".

The windward side of the mountain is the side of the mountain that the wind blows into. This side is where all the rain tends to be because of the air cools as it rises, making clouds. The opposite side is called the leeward side. This is where the air sinks, leaving the side much more warm and dry.

8 0
3 years ago
Which substance on the plasma membrane helps identify chemical signals from outside the cell?
olga2289 [7]

Answer:

carbohydrate chain

Explanation:

Cholesterol is more rigid than some of the other lipids in the membrane. Cholesterol keeps the fatty-acid tails of the phospholipids bilayer from sticking together, which contributes to the fluidity of the plasma membrane. The membrane would become rigid. Transport protein move needed substances or waste materials through the plasma membrane . Carbohydrate defines the cell characteristics and help cells identify chemical signals.

5 0
3 years ago
Stored food in plants is eaten by animals for energy. true false
worty [1.4K]
Animals need to eat or consume food
4 0
3 years ago
Which statement best describes an environmental consequence of unsealed landfills? Landfills can produce carbon dioxide that lea
kirill [66]

The correct statement describing environmental consequence of unsealed Landfills is : ( A ) Landfills can produce carbon dioxide that leak into the atmosphere

A landfill is composed of 4 essential components and some are ;

  • bottom linear
  • hydrogeologic component and
  • A cover ( seal )

Given that a landfill constitutes of about 40 to 60 percent of C0₂ the environmental consequence of not providing a proper seal for the landfill will be the leakage of C0₂ into the atmosphere. while

The release of Heavy metals as leach ate into the surrounding can be controlled with the provision of a system in the landfill, materials in landfill undergo decomposition for a long period of time.

Hence we can conclude that Landfills can produce carbon dioxide that leak into the atmosphere.

Learn more : brainly.com/question/12745559

5 0
3 years ago
Read 2 more answers
Throughout the world countries are dumping their garbage in the oceans. This dumping has affected the fish and other aquatic org
GrogVix [38]

The theory that explains this scenario is the tragedy of the commons theory.

<h3>What is the tragedy of the common theory?</h3>

It is an economic theory that explains how individual gains create a general problem in society at large.

When individuals pursue personal gains even at the expense of creating a general problem in society, it results in the tragedy of the common.

Indiscriminate dumping of garbage in the ocean by countries results in a general problem that affects the entire world vis a vis the collapse of many fishing industries.

Fishes represent a source of protein for man all over the world.

More on the tragedy of the commons can be found here: brainly.com/question/9680058

#SPJ1

4 0
2 years ago
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