Body Systems (YEAR 8)

A group of organs and tissues that work together to perform specific functions necessary for the survival and health of the organism is called a __.

Body system

A chemical messenger produced by glands in the endocrine system that regulates various physiological processes in the body is known as __.

Hormone

The structural unit of the body composed of different types of tissues that work together to perform specific functions is called an __.

Organ

A group of similar cells that work together to carry out a specific function in the body is referred to as __.

Tissue

Most animals, such as humans, have __ major body systems.

11

The system that moves nutrients, gases, and waste products around the body is called the __ system.

Circulatory

The __ system exchanges gases with the environment.

Respiratory

The system that produces hormones that control growth and development is the __ system.

Endocrine

The main site for photosynthesis, exchange of gases, and transpiration in plants is the __.

Leaves

The outer layer of cells in plants is known as the __.

Epidermis

A type of connective tissue that holds bones together is called __.

Cartilage

The elimination of cellular waste in your body is referred to as __.

Excretion

The early stage of development of an unborn baby is known as __.

Embryo

The female reproductive organs of a flower comprise the __.

Pistil

The stalk that supports the anther in a flower is called the __.

Filament

The process of the movement of pollen from the male part of the plant to the female part is known as __.

Pollination

The human body tries to reject transplanted organs because the __ system is always on the lookout for things that shouldn’t be there.

Immune