Biology 7

_________ is the manner in which smaller units or constituents of any structure are aggregated higher or larger units.

• Energy

• organisms

• Organisation

_______ level is the lower level of an organisation.

• Cellular

• Chemical

• Organ

In _______level several organs that work together to perform one major life function form an organ system.

• system

• vascular

• cellular

Integumentary systems consists of _____,_____,_____

• Heart, blood vessels ,blood

• skin, hair, nails

• nose, trachea , lungs

_______ secrete hormones which influence metablic processes.

The cells that are similar in structure, origin and function form a ________

______ tissues are simple tissues composed of a group of similar actively dividing cells that can form new cells.

• apical

• Meristems

• membrane

lateral meristem is also called ________

• cambium

• tissues

• cells

_______tissues are formed by the division of meristematic tissues.

• lateral

• permanent

• vascular

It is made up mostly of living cells.

• Phloem

• vascular

• xylem