Abundancy of oxygen in the atmosphere
Whether there was molecular oxygen within the earth's primitive atmosphere? How that molecule has become abundant?
Expert
The existent of the molecular oxygen within the primitive atmosphere was probably at the minimum and extremely rare. Oxygen form abundant gas due to the emergence of photosynthetic beings, around, 1.5 billion years after appearance of the life over planet.
Describe the histological nature of the glands? Also state how they are formed?
Relational Database: It is a database which maintains a set of separate, related files (that is, tables), however combines data elements from the files for queries and reports whenever needed. The concept was introduced in the year1970 by Edgar Codd,
Illustrate out the classification of amine groups?
Describe briefly the term reproductive isolation?
Write down the forces which are accountable for antigen-antibody reactions.
Name the epidemiological relation between HIV and hemophilia infection?
What are the major structures in the cell nucleus?
Explain the difference between macro and micronutrients?
What is the energy source employed in active transport via biological membranes?
Explain in short regarding histamine?
18,76,764
1956544 Asked
3,689
Active Tutors
1413555
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!