Different species of plants and animals living in the same habitat is called?
A. Population
B. Community
C. Biome
D. Habitat
Group of living organisms of the same species living in the same place at the same time is called ?
Group of living organisms of the same species living in the same place at the same time is called ?
A. Community
B. Population
C. Ecosystem
D. Biome
In animals coordination is achieved by means of?
In animals coordination is achieved by means of?
A. Nervous system
B. Endocrine system
C. Respiratory system
D. Both A and B
A structure formed by groups of similar cells organized into loose sheets or bundles performing similar functions is called as:
A structure formed by groups of similar cells organized into loose sheets or bundles performing similar functions is called as:
A. An organ
B. An organism
C. A Tissue
D. A Cell
Which one of them is a micro-molecule?
Which one of them is a micro-molecule?
A. Polysaccharide
B. Protein
C. Hemoglobin
D. ATP
The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called:
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
Oxygen accounts for ____ % of totals human body mass?
Oxygen accounts for ____ % of totals human body mass?
A. 65%
B. 18%
C. 10%
D. 3%
Out of 92 naturally occurring chemical elements how many are considered as bio-elements?
Out of 92 naturally occurring chemical elements how many are considered as bio-elements?
A. 6
B. 16
C. 26
D. 15
__________ is essential for the formation of hemoglobin.
__________ is essential for the formation of hemoglobin.
A. Calcium
B. Iron
C. Water
D. Carbohydrates
Blood is carried towards the heart by __________?
Blood is carried towards the heart by __________?
A. Arteries
B. Capillaries
C. Veins
D. none of these