The life cycle of an animal usually starts from the fusion of the male (sperm) and the female (egg cell) gametes during the fertilization process.

It can be divided into embryonic and fetal periods.

It can be divided into embryonic and fetal periods.

Fertilization happens when the pollen penetrates the ovary of its main reproductive organ.

It has the ability to make the water flow through narrow spaces in the vascular tissues.

It has vascular tissues which are needed for the transportation of nutrients and water.

The sucking of soil and nutrients is one of its mechanisms in acquiring food.

Their nutritional requirements are the basic biomolecule to sustain biological functions.

Its primary components are the digestive tract and the accessory organs.

The movement of organic molecules is through the phloem where molecules flow from a source to a sink.

Water can enter travel through the xylem through intracellular and extracellular routes.

They have a gastrovascular cavity that is lined with specialized cells.

They can either have an open or closed circulatory system

Their osmoregulatory system also removes metabolic wastes from the body.

Their auxin may inhibit or stimulate cell growth depending on the type of tissue.

They have Abscisic acid that triggers responses associated with stress.

The electrical nerve signals travel along the entire length of axon until it reaches the axon terminal.

They have five phases involved in the generation of action potentials

They can amplify or reverse the changes detected by the body.

They have innate immunity, and some have both adaptive and innate forms of immunity.

They have PAMP-triggered immunity, which recognizes molecules present in pathogens.

They have effector-triggered immunity that can cause a hypersensitive response.

Their hypersensitive response can cause the formation of lesions.

They have B and T cells in their immune system.