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I am a biology lecturer, I am most interested in studying nature and Technology
In ABO blood grouping, Do a person with A blood group have anti-B antibodies already?
That is prior to transfusion of B blood group
4 AnswersBiology8 years agoIs there any animal that has polyspermy?
2 AnswersBiology8 years agoWhy teeth are formed twice in life time of human?
4 AnswersBiology9 years agoWhat is the meaning of Quasi-fluid?
This word comes when describing the cell membrane. The quasi-fluid nature of lipid enables lateral movement of proteins within the overall bilayer. Here I ask that what exactly is the meaning of Quasi-fluid?
2 AnswersBiology9 years agowhat does 'd' mean in Hind III restriction endonuclease enzyme?
1 AnswerBiology9 years agoIs haemophilia and colour blindness are linked?
2 AnswersBiology9 years agoDo ants drink sweet bevarages, In sense the water?
I see some ants gather around a drop of sweet beverage like coca-cola. Do really ants drink beverages? or water?
3 AnswersBiology9 years agoHow contraction of alary muscles results in expansion of pericardial sinus in cockroach?
alary muscles are traingle shaped, the pointed side is connected to tergum and its broad face is connected to dorsal diaphragm. When alary muscles are contracted, the pricardial sinus is enlarged. My question is how this pericardial sinus enlarges? contraction should result in decrease of pericardial sinus!
1 AnswerBiology9 years agoWhy africans are resistant to malaria?
4 AnswersBiology9 years agoWhat is an alpine forest?
What is the meaning of alpine? What is an alpine-scrub forest?
3 AnswersBiology10 years agoEvery male is female and every female is male - comment?
1 AnswerBiology1 decade agoIs the number of nerve cells remain same from birth to death?
Do new nerve cells are formed from other cells(like stem cells). I need complete information
1 AnswerBiology1 decade agowhy photosynthesis takes place in blue and red light?
On a wave length scale, the red light has more energy than blue light. But high photosynthetic activity is observed under blue light. Why not this happen in red light as this light carries more energy than blue light??. Do photosynthetic activity occurs in other colours of light like Violet, Indigo, orange, yellow etc?
4 AnswersBiology1 decade agoWhy scientists are unable to discovered about the barrumuda triangle mystery?
Is still the barrumuda triangle a mystery?
5 AnswersEarth Sciences & Geology1 decade agoWhy the lateral hearts have 4 pairs of valves while latero-esophageal hearts have only 3 pairs of valves?
In lateral oesophageal hearts valves are present at the opening of dorsal blood vessel, supra-oesophageal blood vessel and ventral blood vessel. Whereas this is not the case in the lateral hearts. If you think that the valves have to be present only at junctions. The lateral hearts should contain only two pairs of valves at the junction between dorsal blood vessel and ventral blood vessel. But the lateral hearts have 4 pairs of valves. Why? (This is about Pheretima Posthuma (earthworm))
1 AnswerMedicine1 decade agowhy rbc of fishes, amphibians and reptiles have nucleus?
The RBCs of aves and mammals don't have nucleus because of to carry more O2 molecules, but why the RBCs of fishes, amphibians and reptiles don't have nucleus in RBC
2 AnswersZoology1 decade agowhat is the horse shoe crab closest relative?
1 AnswerZoology1 decade agoWhat happens to sinus venosus in mammals?
3 AnswersZoology1 decade ago