Pre-Test: Invertebrates (pt. 1)

Invertebrates are animals .....

• with backbone

• without backbone

• with skull

• without hard skeleton

There are ..... groups of invertebrates

• 5

• 6

• 7

• 8

Insect is the largest group of invertebrates by species also by number.

• True

• False

Examples of invertebrates

• Worms, sponges, snail, crab, jellyfish

• Jellyfish, starfish, sea gull, butterfly, frog

• Bear, lion, pigeon, shark, beaver

• Starfish, shrimp, salamander, anchovies, bee

Porifera also known as ..... because the way it obtains its food.

• Stinging feeder

• Deposit feeder

• Filter feeder

• Sediment feeder

Water can get inside the porifera through ..... and exit through .....

• Osculum; ostia

• Ostia; osculum

Porifera is not motile animal, which means .....

• Can't move freely; instead it attached to a certain substrate

• Can move freely because it has movement organ

• Can't move freely; it will attach to other freely-move animal

• Can move freely because of the wave/direction of water movement

This animal in the picture is considered as .....

• Porifera

• Mollusca

• Coelenterata

• Echinodermata

Coelenterata can reproduce asexually by ..... mechanism.

• Fragmentation

• Budding

• Regeneration

• Spores

Coelenterata which is not motile (sessile) is called as .....

• Polyp

• Medusa