Question : The wings of a bird and an insect are

Option 1: homologous organs

Option 2: analogous organs

Option 3: vestigial organs

Option 4: rudimentary organs

Question : Which of the following is the correct definition of habitat?

Option 1: A complex of several types of communities

Option 2: The natural environment of living organisms

Option 3: The place where one would go to find the particular living organisms

Option 4: The natural environment of a living organism and the place where one would go to find the particular living organism

Question : What is the full form of PPLO concerning bacteria?

Option 1: Pleuro Pneumonia Like Organisms

Option 2: Pleuro Platelet Like Organisms

Option 3: Platelet Prone Like Organisms

Option 4: Pneumonia Platelet-Like Organisms

Question : The 'Red Data Book' is the documentation of endangered rare species of:

Option 1: flora

Option 2: fauna

Option 3: other living organisms

Option 4: all of these are correct

Question : Grey hair is caused due to

Option 1: ageing of epidermal cells

Option 2: death of dermal cells

Option 3: loss of sebum in epidermal cells

Option 4: loss of melanin in epidermal cells