November Week 1

Question 1

what is Sponges

Answer 1

(= Porifera)

primitive multicellular animal

invertebrate animal

asymmetrical

no tissues or organs; cells digest food and
take in oxygen

filter feeder

Question 2

what is Cnidarians

Answer 2

Two different body plans (polyp, medusa).

Radial symmetry

Central hollow cavity

Tentacles with stinging cells (capture food,
defense)

Example:

Sea anemone, coral, hydra (polyp body
plan)

Jellyfish (medusa body plan)

Question 3

Nematocyst:

Answer 3

capture food, defense

Question 4

what is Plant Cell Structures & Functions

Answer 4

Cell membrane: allows substances to enter
and leave the cell

Nucleus: directs the cell’s activities including
reproduction

Chloroplast: captures energy from sunlight to
make food

Cell Wall: protects and supports the cells

Cytoplasm: allows the movement of
materials around the cell and supports other
cell structures.

Vacuole: single, large; stores food, water,
and waste-