animala

Question 1

Plylum Porifera

Answer 1

Sponges
water
filter- feeders, simplest animals, don’t have true tissues, a gut,or nerves, so messages are passed slowly, sessile animals
indicator species, poison and chemicals are used as medicineused to absorb blood during surgery.

Question 2

Phylum Cnidaria

Answer 2

-Stinging Cells
Ex. Jellyfish, Coral, and Sea anemones
-Fresh water / oceans
-No brain, two way gut
-Polyp- Sessile, asexual.
-Medusa- (jellyfish, mobile stage), sexual. (ALTERNATING STAGE)
- Most diverse, medicine from poisonous, break the waves

Question 3

Phylum Platyhelminthes

Answer 3

• Flat warms
• First animal with a head and central nervous system/brain, germ tissue, but no body cavity (acoelomates), two-way gut.
  -They are small at first, have suction cups, hooks, and very thick skin. They don’t have senses, a brain, a mouth, or a digestive system, and they have reduced muscles or nerves.

Question 4

Phylum Nematoda

Answer 4

-Thread-like warms
- Land, water
-Sutecime body plan, Gap built with fluid between gut and body wall. Hydro static skeleton (pressurized fluid), One way gut (mouth/ anus)
-pest to crops
- Historical-winded nematodes out of skin

Question 5

Phylum Annelida

Answer 5

-Segmented words
Found in most environments. First organism with blood, can carry food, oxygen, and waste. has dorsal brain (on top of the body), main nerve port is on the bottom (ventral).

Leeches get rid of blood clots and reduce swelling. also has an anesthetic. saliva is used for blood thinners. (Antiquadulent)

Earth warm- makes topsoil, eat leaf debris turns it into nutrients. makes tunnels that allows water to drip down to deep roots.

Question 6

Phylum Mollusca

Answer 6

Soften bodied mollusk
second most diverse, don’t show segmentation anymore. Clams, snails, octopi, squid, and cuttlefish. Found in water. Have an open circulatory system, where the blood isn’t always in vessels. The smartest invertebrates.

food source, Bivalves (clams) can be a good water quality indicator. People like to sell shells and pearls. Snails and slugs can be pests, and they are hosts of flukes.

Question 7

Phylum Arthropoda

Answer 7

(insects, spiders, crustaceans)
Most diverse. One phylum that can fly They have an exoskeleton, which can easily adapt. They are segmented. Having a hard skeleton is good for the muscles to attach to and pull against. Have an open circulatory system.

Food Source, Pest to crop, pollinators, can give humans illness