The study of relation of animals and plants to their surroundings is called
Ecology
Ethnology
Genealogy
Genealogy
A.
Ecology
Spraying of DDT on crops causes pollution of
Air and Soil
Crops and Air
Soil and Water
Soil and Water
Which one of the following events in a botanical garden is never directly influenced by light?
Flowering
Photosynthesis
Transpiration
Transpiration
The waste management technique that involves the use of micro-organisms to remove or neutralize pollutants from contaminated site is called
Bio sensor
Bio magnification
Bio remediation
Bio remediation
Blood is red in colour due to the presence of .............
cytochrome
chlorophyll
hemocyanin
hemocyanin
Which cells in pancreas produce insulin?
Thymus
Estrogen
Corpus epididymis
Corpus epididymis
At which stage in its life cycle does the silkworm yield the fiber of commercial use
Larva
Egg
Pupa
Pupa