List of top Biology Questions

Closed vascular bundles lack
The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorised as
The maximum amount of electrolytes and water ($70 - 80$ percent) from the glomerular filtrate is reabsorbed in which part of the nephron?
Common cold differs from pneumonia in that Pneumonia
Placentation in Tomato and lemon is
Gymnosperms are also called soft wood spermatophytes because they lack
Which one of the following is not a gaseous biogeochemical cycle in ecosystem?
How many organisms in the list given below are autotrophs ? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter Streptomyces, Saccharomyces, Trypanosoma, Porphyra, Wolffia
Select the correct statement about biodiversity
The highest number of species in the world is represented by
Vexillary aestivation is characteristic of the family
Cymose inflorescence is present in
Which is not a functional unit of an ecosystem
Which one of the following pairs is wrongly matched ?
The gynoecium consists of many free pistils in flowers of
As compared to a dicot root, a monocot root has
How many plants in the list given below belongs to the Fabaceae family? Mustard, Gram, Tulip, Asparagus, Arhar, Sun hemp, Chilli, Colchicine, Onion, Moong, Pea, Tobacco, Lupin, Trifolium, Sesbania
Vernalization stimulates flowering in
The Lac Operon is turned on when allolactose molecules bind to :
The site of Krebs cycle is
Which one of the following human organs is often called the 'graveyard' of RBCs?
Which one of the following options gives one correct example each of convergent evolution and divergent evolution?
Convergent evolution Divergent evolution
(a) Eyes of octopus and mammals Bones of forelimbs of vertebrates
(b) Thorns of Bougainvillea and tendrils of Cucurbita Wings of butterfly and birds
(c) Bones of forelimbs of vertebrates Wings of butterfly and birds
(d) Thorns of Bougainvillea and tendrils of Cucurbita Eyes of octopus and mammals
Domestic sewage of large cities
Which one of the following options gives the correct categorisation of animals according to the type of nitrogenous waste they give out?
Ammonotelic Ureotelic Uricotelic
(a) Pigeon, humans Aquatic amphibia, lizards Cockroach frog
(b) Frog, lizards Aquatic amphibia humans Cockroach pigeon
(c) Aquatic animals Frog, amphibia, humans Pigeon, lizards, cockroach
(d) Aquatic animals Cockroach, amphibia, humans Frog, pigeon, lizards
Anxiety and eating spicy food together in an otherwise normal human, may lead to