A. Environmental biology
B. Social biology
C. Human biology
D. Both b and c
Biology
……….. is the potential surce of chemical energy for cellular activities?
A. C-H bond
B. C-O bond
C. C-N bond
D. P-O-C bond
In animals coordination is achieved by means of………?
A. Respiratory system
B. Nervous system
C. Endocrine system
D. Both b and c
Different species of plants and animals living in the same habitat is called ………..?
A. Population
B. Community
C. Biome
D. Habitat
The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called……….?
A. An organ
B. A molecule
C. Tissue
D. Both a and c
Percentage of water in brain cells is…….?
A. 20%
B. 65%
C. 85%
D. 89%
The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by……..?
A. Molecular biologists
B. Microbiologists
C. Freshwater biologists
D. Social biologist
A chemical substance that reacts with enzyme but is not transformed into product and thus blocking active site is called……….?
A. Substrate
B. Co-factor
C. Inhibitor
D. Promotor
The study of fossils is called……….?
A. Environmental Biology
B. Historical biology
C. Palaeontology
D. Social biology
Which character differentiates living things from non-living organisms………..?
A. They live in the same ecosystem.
B. They are acted upon by the same environment
C. They are highly organized and complex made of one or more cells and contain genetic material
D. Both a and b