Gaseous exchange in birds occurs at level of_______________? Options: A. AlveoliB. Air sacsC. BronchiD. Parabronchi View Answer D. Parabronchi
The scientific study of livings is called? Options: A. AnatomyB. BiologyC. GeologyD. Zoology View Answer B. Biology
Which of the following is an example of Options: A. ChloroplastB. A Nerve CellC. DNAD. Hydrogen View Answer C. DNA
The average internal temperature of human body is __________? Options: A. 35 oCB. 36 oCC. 37 oCD. 38 oC View Answer C. 37 oC
In animals coordination is achieved by means of? Options: A. Nervous systemB. Endocrine systemC. Respiratory systemD. Both A and B View Answer D. Both A and B
Which are the four most abundant elements in living cells ? Options: A. carbon, oxygen, nitrogen, sulfurB. carbon, oxygen, hydrogen, nitrogenC. carbon, oxygen, sulfur, phosphorusD. carbon, sulfur, hydrogen, magnesium View Answer B. carbon, oxygen, hydrogen, nitrogen
Pigment present in red algae is_____________? Options: A. fucoxanthinB. phycocyaninC. phycoerythrinD. bilirubin View Answer C. phycoerythrin
Operculum is present in_____________? Options: A. bony fishB. sea fishC. cartilaginous fishD. none of these View Answer A. bony fish
Who discovered the living cell first time? Options: A. Robert brownB. Robert hookeC. Rudolf virchowD. Antoni van leeuwenhoek View Answer B. Robert hooke
Taking in liquid material into the cells is known as_________? Options: A. PhagocytosisB. PinocytosisC. ExocytosisD. Both a and b View Answer B. Pinocytosis