bio lab

Question 1

what are the phylums

Answer 1

platyminthes
Mollusca
annelida
nematoda
arthropoda
Echinodermata
chordata

Question 2

what belong to the playminthes phylum

Answer 2

flatworms

Question 3

types of flatworms

Answer 3

planarians - freshwater
trematodes (flukes)- parasitic flatworms
tapeworms-parasitc, digestive

Question 4

what belong to the Mollusca phylum

Answer 4

snails,oyster,mussels,squids,octopuses

Question 5

Mollusca have three main parts.

Answer 5

1. foot
2. internal/external mantles
3. visceral mass

also
gills and lungs

Question 6

what are in the arthropoda

Answer 6

centipedes
millipedes
horseshoe crabs
spders
scorpians
ticks
fleas
insects

Question 7

Who has jointed appendages on a segmented body

Answer 7

arthropoda

Question 8

what kind of skeleton do arthropodas have

Answer 8

exoskeleton

Question 9

what are some disadvantages to the arthropoda

Answer 9

1. cannot exchanges gases nematodes,annelids,and others.

2. exoskeleton must molt which leaves the organisms vulnerable

Question 10

network of hollow tubes that originate in pores called spiracles on the surface of the abdomen

Answer 10

trachea

Question 11

what organisms do the Echinodermata include

Answer 11

sand dollar, starfish, sea urchin

Question 12

what kind of symmetry do Echinodermata have

Answer 12

radial

Question 13

Echinodermata have two characteristics

Answer 13

endoskeleton of calcium containing plates

water vascular system with tube feet

Question 14

how are chordates organized

Answer 14

1. a throat with gill slits
2. a notochord of cartilage for support
3. a dorsal hollow nerve cord
4. a tail posterior to the anus

Question 15

blind sac

Answer 15

digestive system with a single opening that functions as a mouth and an anus

Question 16

has a tube shape with one end of the tube functioning as the mouth and the other end as the anus (within alimentary canal)

Answer 16

tube within a tube

Question 17

embryonic tissues that give rise to adult tissues

Answer 17

germ layers

Question 18

give rise to the outer layer of adult cells ( the epidermis) and the inner layer of adult cells (the gastrodermis)

Answer 18

ectoderm and endoderm

Question 19

organisms with two germ layers

Answer 19

diploblastic

Question 20

something that’s found between the endoderm and ectoderm and all members of the animal kingdom have

Answer 20

mesoderm

Question 21

triploblastic

Answer 21

organisms with mesoderm, refers to embryonic tissues

Question 22

Protosomes have two groups

Answer 22

Ecdysozoa and lophototrchozoa

Question 23

Ecydozoa have

Answer 23

Exoskeleton and cuticles

Question 24

When the animals are broken into segments

Answer 24

Metameres