Question : Select the biofertilizer in the following:

Option 1: Compost

Option 2: Ammonium sulphate

Option 3: Cattle dung

Option 4: Algae and blue-green algae

Question : Identify the correct statement about green algae.

Option 1: Green algae usually have a soft cell wall made of an inner layer of pectose.

Option 2: Green algae usually have a rigid cell wall made of an inner layer of protein and an outer layer of fibre.

Option 3: Green algae usually have a rigid cell wall made of an inner layer of cellulose and an outer layer of pectose.

Option 4: Green algae usually have a rigid cell wall made of an inner layer of fat and an outer layer of protein.

Question : Identify an organism that exhibits metagenesis.

Option 1: Obelia

Option 2: Spongilla

Option 3: Sycon

Option 4: Euspongia

Question : Identify the organism that is not a pseudocoelomate.

Option 1: Ancylostoma

Option 2: Ascaris

Option 3: Wuchereria

Option 4: Scorpions

Question : Which of the following micro-organism causes diseases like polio and chicken pox ?

Option 1: Bacteria

Option 2: Protozoa

Option 3: Algae

Option 4: Virus