Transcribed, RNA
Transcription= converting strands of DNA into single coding strands of RNA
It is b for 18 b for 19 c for 20
<h2>Answer 1:</h2>
The carbon dioxide in the breathed out air is a by-product of the process of cell respiration. In respiration, a molecule of carbohydrate is converted into a CO2, H20, and energy which is released in form of ATP.
<h2>Answer 2:</h2>
All plants belonging to kingdom Plantae and plant-like organism like photosynthesizing bacteria need CO2 to survive. They use carbon dioxide in food making process, photosynthesis.
<h2>Answer 3:</h2>
- Amount of CO2 in the air: 0.03%
- Amount of CO2 in the breath: 4%
Hence it is proved from above statistics that breath has more carbon dioxide than air.
<h2>Answer 4:</h2>
There are two sources of CO2 in the air. Which are the following:
- Human sources: It includes activities of human involvement and release of CO2 artificially as in cement production, deforestation as well as the burning of fossil fuels like coal, oil and natural gas.
- Natural sources: Release of CO2 by natural processes as in decomposition, ocean release and respiration.
<h2>Answer 5:</h2>
- The major ecological effect is global warming.
- As CO2 is known as the greenhouse gas because it gives a greenhouse effect. Elevating concentration of CO2 in air forms a layer or sheath of CO2 over the earth which allows the entry of sun rays and stop it from reflecting back, trapping sun rays around earth increasing the temperature of earth day by day.
- It also causes plants to provide less evaporative cooling because in high concentration CO2 stomata shrink through which normally evaporation occurs when stomata are open.
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Answer:
D
Explanation:
Asexual reproduction (requiring one parent) forms exact copies of the parent cell. The type of cell division that produces exact copies is mitosis. Therefore the answer is D.
Answer: The levels, from smallest to largest, are: molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.
Explanation:
