Answer:
What are so called breast-cancer genes, are mutations in two genes: BRCA1 (BReast CAncer gene one) and BRCA2 (BReast CAncer gene two), and are also associated with ovaric cancer. According to the question, these genes are present in the popolation despite surgeries and deaths, and asks why. Surgeries does not eliminate the genes, they eliminate the tumors, and people can still reproduce after that. And also, most people already had offspring before they know they have cancer, so they are inheriting the mutations on the genes anyway.
Explanation:
Answer:
chemical reaction:-
12H20 + 6CO2 + light =====> C6H12O6 + 6H2O + 6O2
the above reaction shows that if we combine water,carbon dioxide and sunlight ,the resultant products will be glucose ,water and oxygen .
The plant converts the carbon dioxide into energy and oxygen by different steps that include
- absorption of light
- conversion of NADP into NADPH+
- conversion of ADP into ATP
- formation of carbohydrates from CO2 !
Answer:
It's used in thermometers because it has high coefficient of expansion.
conifers,mushrooms
plants trap insects because they grow in soil which is usually thin and is also poor in nutrients , so they eat insects to fulfill their nuttient requirement
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Answer:
True
Explanation:
Earlier it was believed by researchers that sleep is not a good thing as it does not allow an organism to stay alert all the time due to which there are high chances of such organism being consumed by other organism. However, with the discovery of theory of evolution, it is now believed that sleep has also evolved. Its evolution allows an organism to save energy and conserve it.
Evolved sleep has helped decrease synaptic strength which allows a person to preserve memories and function well during the day time. REM sleep in the early morning makes brain metabolically active even while sleeping and hence, dream comes.
