The green pigment present in the plants which help in the synthesis of food is :
Chlorophyll
Keratin
Serotonin
Haemoglobin
The structural unit of a living being is :
Organs
Muscles
Skin
Cell
The groups of cells which perform a particular function are called :
Tissue
Organ
Organ System
Molecule
The life span of house spider is :
3 - 4 years
3 - 4 months
3 - 4 weeks
3 - 4 days
The life span of dog is :
16 - 18 days
16 - 18 weeks
16 - 18 months
16 - 18 years
The plants which grow on land and need moderate amount of water are called :
Xerophytes
Pteridophytes
Hydrophytes
Mesophytes
Study the picture given. The picture proves that
Living things move
Living things grow
Living things reproduce
Living things respond to stimuli
Which of the following statements is true?
The structural unit of living things is molecule
All animals are autotrophs
All organisms reproduce sexually
Organisms follow a life cycle of birth, growth, reproduction, ageing and death