Transport Systems

Which animals have an open blood system ?

• Small animals

• Large animals

What is a closed blood system

• where blood remains inside blood vessels

• Where blood flows freely

• Where blood flows in one direction

• Where blood flows in all directions

How does the blood flow in double circulation ?

• Heart to tissue to heart to lungs

• tissue to lungs to heart

• Heart to lungs to heart to tissue

in plants, gasses diffuse in and out of...

• cuticle

• upper epidermis

• lower epidermis

• stomata

water in plants is transported by...

• phloem

• xylem

• roots

which feature helps in distributing the transport medium to all parts of an organism

• Control flow of transport medium

• Suitable Medium

• System of tubular vessels

• Mechanism for moving the transport medium within vessels

why is blood clotting useful ?

• to store blood

• to avoid leakage

• to protect against diseases

why is a suitable medium needed

• carry materials

• flow movement in one direction

• suit changing needs of different parts of an organism