The purpose of RNA is to transfer amino acids to ribosomes for incorporation into a polypeptide undergoing synthesis.
The transformation of gneiss into mica, quartz, and feldspar crystals is an example of physical weathering and disintegration and is denoted as option E.
<h3>What is Weathering?</h3>
This is a process in which rocks are broken down into smaller particles through series of mechanisms and factors.
Gneiss is referred to a type of metamorphic rock which is subject to physical weathering when subjected to factors such as high pressure etc.
The rock also undergoes disintegration into mica, quartz, and feldspar crystals under different types of conditions which is why option E was chosen as the most appropriate choice.
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The options are:
A. physical weathering
B. hydrolysis
C. disintegration
D. chemical weathering
E. both A and C
The sun (solar radiation) because the sun heats the Earth unevenly Earth's surface generates pressure differences. Wind is the result of horizontal differences in air pressure.
Answer:
The pathway of oxygen from lungs to the body tissues is alveoli → red blood cells → blood vessels → tissues (option b).
Explanation:
The oxygen (O₂) required by the tissues comes from the air inspired by the respiratory system. The pathway of entry of O₂ to the body and tissues is:
- O₂ from the air reaches the lungs.
- In the pulmonary alveoli, gas exchange occurs, that is, O₂ passes into the blood capillaries and is captured by the red blood cells, while CO₂ is released and passes into the alveoli to be eliminated.
- O₂ in the red blood cells travels through the blood vessels.
- The tissues receive the O₂ and a second gaseous exchange occurs at the tissue level, as they release CO₂ that will be carried to the alveoli.
Tissue oxygenation depends on the integrity of the respiratory and circulatory systems.
<em> The other options do not show the correct order in which the oxygen travels from the alveoli to the tissues.</em>
