The epidermis of earthworm is made up of a single layer of

An embryo is made up of a single cell.

Read the following characteristics (I - IV) and identify the structure to which these features correspond I. Cortex is made up of several layers of thin walled parenchyma cells without any intercellular spaces. II Endoderm is made up of a single layer of barrel - shaped cells without any intercellular spaces. III . Few layers of thick - walled parenachymatous cell forms pericycle. IV. Pith is small or inconspicuous. V. Conjunctive tissue present , and 2 to 4 xylem and phloem patches.

Abscission layer is made up of

Which of the following structure is not made up of a single layer of flattened cell with irregular boundaries?

This epithelium is made up of a single thin layar of flattened cells and is involved in diffusion, it is found in : -

Assertion: The squamous epithelium is made of a single thin layer of flattened cells with irrengular boundaries. Reason: They are found in walls of blood vessels and air sacs of wings.

The outer layer of pollen is made up of :

Correct the wrong statements among the following: (a) In earthworm, a single male genital pore is present. (b) Setae help in locomotion of earthworm. (c) Muscular layer in the body wall of earthworm is made up of only circular muscles. (d) Typhlosole is the part of intestine of earthworm.