Which one of the following structures in Pheretima is correctly matched with its function?

• Clitellum - Secretes cocoo

• Gizzard - Absorbs digested food

• Setae - Defence against predators

• Setae - Defence against predators

Which one of the following aspects is an exclusive characteristic of living things?

• Isolated metabolic reactions occur in vitro

• Increase in mass from inside only

• Perception of events happening in the environment and their memory.

• Perception of events happening in the environment and their memory.

Which one of the following structures between two adjacent cells is an effective transport pathway?

• Plasmodesmata

• Plastoquinones

• Endoplasmic reticulum

• Endoplasmic reticulum

The kind of epithelium which forms the inner walls of blood vessels is 

• cuboidal epithelium

• columnar epithelium

• ciliated columnar epithelium

• ciliated columnar epithelium

If for some reason our goblet cells are non -functional, this will adversely effect

• Production of somatostatin

• secretion of sebum from the sebaceous glands

• maturation of sperms

• maturation of sperms

In which one of the following organism, its excretory organs are correctly stated?

• Humans- Kidneys, sebaceous glands and tear glands

• Earthworm -Pharyngeal, integumentary and septal nephridia

• Cockroach - Malpighian tubules and enteric caeca

• Cockroach - Malpighian tubules and enteric caeca

The epithelial tissue present on the inner surface of bronchioles and fallopian tubes is 

• cuboidal

• glandular

• ciliated

• ciliated

Uric acid is the chief nitrogenous component of the excretory products of 

• man

• earthworm

• cockroach

• cockroach

If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is

• excretory fluid

• coelomic fluid

• haemolymph

• haemolymph

90.

The cell junctions called tight, adhering and gap junctions are found in 

• muscular tissue

• connective tissue

• epithelial tissue

• epithelial tissue