The best and most correct answer among the choices provided by the first question is the first choice or letter A "Extinction of original organism due to interbreeding.
On the other hand, the best and most correct answer among the choices provided by the second question is the first choice or letter A "<span>volcano emissions, lightning, and microbial processes"</span>
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90 mammal species become extinct in the period 1901-2000 than became extinct in the period 1801-1900.
Extinction is a situation in which something no longer exists. Their can be many reasons associated like species have been hunted to the point of extinction, scarcity of food or natural disasters.
Their are two main types of extinction firstly Mass extinction that has occurred only five times in history. The other is Background extinctions which occurs over longer period of time and are considered important in natural extinction rate.
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To produce eggs.
The large pinecones we typically see are female cones which house the eggs and then becomes a seed. The little cones that we don’t really notice are male cones
Answer:
DNA to messenger RNA (mRNA) to protein.
Explanation:
Central Dogma is a term that refers to the two step process through which information flows from the sequence of DNA into a sequence of RNA (the process of transcription) and finally takes the form of proteins (the process of translation)
Francis Crick was the first scientist who proposed the term of "Central Dogma".
Significance of Central Dogma:
- This is the process that ensures that genetic information of all living organisms is preserved and transmitted without any alteration or changes into their offspring.
- It is a process that intricately explains the logical mechanism through which DNA stored in our chromosomes express themselves into functional forms called proteins.
- This was the process which let us know the important roles of molecules like ribosomal RNA, transfer RNA and messenger RNA in the process of protein formation.
- The process has immense importance in understanding the latest advances in RNA technology that can further help in investigation and diagnosis as well as treatment of many critical diseases.
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Answer:
Vascular plants are plants found on land that have lignified tissues for conducting water and minerals throughout the body of the plant. Non-vascular plants are plants mostly found in damp and moist areas and lack specialized vascular tissues.
Explanation:
