class 5 revision

A group of cells join to make organ system

• true

• false

Human body is made up of only one cell

• true

• false

Cells are the basic unit of life

• true

• false

Organs are made up of tissues

• false

• true

Skull has 25 bones

• true

• false

Lower jaw in the skull is fixed

• true

• false

Protecting of soil from erosion is known as soil conservation

• true

• false

Afforestation means planting trees

• true

• false

Overgrazing improves the quality of the soil

• true

• false

Plants are abiotic component of the environment

• true

• false