BIOLOGY MIDDLE SCHOOL

What is the role of cooling air in producing precipitation from clouds?

Answers

Answer 1
Answer:

Clouds are condensed droplets or ice crystals from atmospheric water vapor. Clouds form by the rising and cooling of air caused by convection, topography, convergence, and frontal lifting. Convection occurs when the Sun's radiation heats the ground surface, and warm air rises, cooling as it goes. Air also is cooled if an air mass is forced to move upward as a result of higher topography (e.g., a mountain range) in a process known as orographic lifting. Interestingly, when the air mass descends on the other side of the mountain, it warms and the clouds may disappear as the droplets transfer back to vapor. *

The counterclockwise motion of a low-pressure center draws air inward, and the convergence forces the air upward. Air also is lifted and cooled along either a cold front or a warm front. A cold front is the leading edge of an air mass that is colder than the air it is replacing. The front forms a wedge that pushes under the warmer air ahead, lifting it. A warm front is the leading edge of an air mass warmer than the air it is replacing. As the air mass pushes forward, the warm air slides up over the wedge of cold air ahead of it, as shown in the following figure.

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Order the DNA discoveries

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Answer:

DNA was discovered in 1869 by Swiss researcher Friedrich Miescher, who was originally trying to study the composition of lymphoid cells (white blood cells). Instead, he isolated a new molecule he called nuclein (DNA with associated proteins) from a cell nucleus.

Explanation:

What was the purpose of miller and urey's experimentA. to find out how biological molecules could have first formed
B. to find out if prokaryotes have genetic information
C. to find out if DNA carries genetic information
D. to find out if the protists evolved from the eukaryote​

Answers

A. To find out how biological molecules could have first formed

A scientist thought he may have discovered a new plant compound that would lower blood pressure in people. In his first experiment, he injected one hundred mice with the compound and found that the blood pressure in ninety-five of the treated mice was not affected. However, all of the mice seemed to grow at a faster rate then the control group. Which statement described the most likely outcome of this investigation?

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The knowledge gained will lead to further experimentation that could potentially result in a new use for the drug.

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Hello!!! the answer would be : The knowledge gained will lead to further experimentation that could potentially result in a new use for the drug.

Why are inheritance patterns more complex than simple patterns Mendel observed?

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Answer:

Mendels studies predicted inheritance in a simple manner by studying traits which were not continuous or polygenic. Hence, the patterns of Mendel's observations were simple.

But there are certain traits which are polygenic that means depending on more than one gene type and there are other traits which are continuous. These kinds of traits have complex inheritance patterns and cannot be predicted through laws of Mendel.

Before DNA was discovered, in which materials did scientists think the genetic material was stored?

Answers

Answer: We all know that DNA act as repository of genetic information in most organism. But before the discovery of DNA it was thought that proteins act as a genetic material because protein is the final product of the cell dogma of cellular system and proteins helps in the formation of tissues and organs.

Which of the following is the SI unit used in measuring the temperature of a hot cup of coffee? centigrade

Joule

celsius

Kelvin

Answers

Kelvin is the correct answer. Kelvin is the International System of Units (SI) base unit for measuring temperature. The Kelvin scale is, however, based on the Celcius scale, which is a derived SI unit.

kelvin is the right answer
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