1961. The process by which plants lose water as water vapour into the air is called :

A. Osmosis
B. Photosynthesis
C. Plasmolysis
D. Transpiration *

1962. The presence of: gives the leaves their green color.

A. Metallic Ions
B. Hemoglobin
C. Iron
D. Chlorophyll *

1963. During the day time plants :

A. Inhale carbon dioxide while exhaling oxygen
B. Inhale carbon dioxide while exhaling oxygen *
C. Inhale nitrogen while exhaling oxygen
D. Inhale carbon dioxide while exhaling nitrogen

1964. Fertilization of ova in human take place in :

A. Ovary
B. Vagina
C. Fallopian tube *
D. Uterus

1965. The morphogenetic movement change the hollow spherical blastula into a :

A. Embryonic disc
B. Gastrula *
C. Morula
D. Neurula

1966. Production of genetically copies of organisms/ cells by asexual reproduction is called :

A. Mitosis
B. Replication
C. Cloning *
D. None of these

1967. The number and variety of species in a place is referred to as its :

A. Biodiversity *
B. Biome
C. Community
D. Population

1968. About 53.1 % of currently known species of organisms are :

A. Animals
B. Plants
C. Invertebrates
D. Insects *

1969. Number calls in human body are ?

A. 35 Trillion
B. 45 Trillion
C. 55 Trillion
D. 75 Trillion *

1970. They are highly organized complex entitles composed of one of more cells and contain genetic program of their characteristics .The statement refers to :

A. Biologists
B. Living organisms *
C. Human biologists
D. Molecule biology