Recently Active General Biology Questions

Is there any open circulatory system in the human body? ...

why 0-is a universal donor but not o+...???? ...

I am recently stumbling with a question. Can you please help me? A brown-eyed man produces with a woman offsprings in the ratio 1:1.(ie brown-eyed : blue-eyed).Predict the genotype of the mother. In this case,brown eyes is do ...

When someone touches my head I can feel the touch. This means there are nerves below our scalp. These nerves are called cranial nerves. OK. Bot are there holes in the cranium for these nerves??? Thanx in advance ...

Is adrenalin secreted due to impulses from the Sympathetic Nervous System?? ...

we know that banana is not a fruit.what is it,which part of a tree???? ...

please tell me a name of a growth retardant hormone. ...

what is the main function of varnalin???? ...

Post you biology questions in this section :) ...

The presence of feathers and power of flight are the characteristic features of (a) mammalia (b) reptilia (c) aves (d) amphibia ...

Why are lysosomes called the suicidal bags of the cell ...

Which of the following pairs belong to the category of cold blooded animals? (a) snakes and birds (b) bats and rats (c) frog and snakes (d) birds and monkey ...

Organisms without nucleus and cell organelles belong to (i) fungi (ii) protista (iii) cyanobacteria (iv) archaebacteria (a) (i) and (ii) (b) (iii) and (iv) (c) (i) and (iv) (d) (ii) and (iii) ...

Which of the following pairs of diseases is caused by virus? (a) rabies, mumps (b) cholera, tuberculosis (c) typhoid, tetanus (d) AIDS, syphilis ...

A characteristic feature of cardiac muscle is its (a) fatigue (b) rhythmicity (c) spindle shape (d) all of the above ...

For each characteristic given below, name the corresponding phylum: (a) body segmented and jointed legs, with compound eyes (b) body having calcareous shell and ventral foot (c) spiny skinned organisms ...

The information given below refers to the hormone (i) secreted by endocrine glands located on top of kidneys (ii) converts glycogen into glucose (iii) helps the body to adjust to stress (a) adrenaline (b) insulin (c) progeste ...

Water reabsorption mainly occurs through (a) Bowman's capsule (b) Proximal convoluted tubule (c) Loop of Henle (d) Distal convoluted tubule and collecting tubules ...

Choose the wrong statement (a) the nature of matrix differs according to the function of the tissue (b) fats are stored below the skin and in between the internal organs (c) epithelial tissues have large intercellular spaces ...

Which of the following remains absent in prokaryotes? (a) nuclear membrane (b) ribosome (c) cell wall (d) cell membrane ...

'Lock jaw' is another name of: (a) malaria (b) kala-azar (c) tetanus (d) diptheria ...

The reason why some mutations, which are harmful, do not get eliminated from the gene pool is that (a) they are recessive and carried by heterozygous individuals (b) they are dominant and show up more frequently (c) genetic d ...

Coronary artery disease is caused by deposits of (a) potassium (b) calcium (c) sodium (d) none of these ...

A married young man of 25 years is not having a child. The possible reason for this is (a) lack of testosterone (b) lack of progesterone (c) excess of progesterone (d) excess activity of pituitary gland ...

What is the primary source of nitrogen oxides? (a) burning coal (b) burning wood (c) burning fossil fuels (d) industries ...

Fossil 'X' can be considered to have evolved earlier than fossil 'Y' if fossil (a) 'Y' has vestigial structures that are homologous to functional structures in fossil 'X'. (b) 'Y' is structurally more complex than fossil 'X'. ...

Give two examples of each of the following and their specific usefulness in the body: (i) monosaccharides (ii) disaccharides (iii) polysaccharides ...

Golden brown algae are called: Diatoms (2) Volvox (3) Ectocarpus (4) Polysiphonia ...