diversity

Question 1

body setae

Answer 1

hair like structures, annelidia

Question 2

Charophytes

Answer 2

prevents exposed zygotes from desiccation, group of freshwater green algae, chordata

Question 3

notochord

Answer 3

midline structure common to all members of the phylum CHORDATA, goes from gut to neural tube, braciopoda

Question 4

crown of cilia with a stalk

Answer 4

draws in food to eat small enough to go through the tube for the organism to eat, includes everything except porifera and choanoflagellates

Question 5

pseudocoelomates

Answer 5

include nematodes, rotifers, gastrotrichs
organisms that have false body cavities, fluid filled body cavity separating the gut of the organisms from the body wall, not lined by the mesoderm, syndermata

Question 6

triploblasts

Answer 6

frog, flatworms, humans, they have an ectoderm, mesoderm and endoderm, everything except cnidarian, porifera and choanoflagellates

Question 7

multicellular

Answer 7

having multiple cells

Question 8

water vascular system

Answer 8

echinoderms, a network of water vessels, tube feet

Question 9

cnidae

Answer 9

cnidarians, organelle like capsules with reversible tubules, ex the things jellyfish and sea anemones have

Question 10

sessil

Answer 10

dont move, porifera

Question 11

all microscopic

Answer 11

syndermata

Question 12

neither protostomy or deuterostomy

Answer 12

acoela

Question 13

choanocytes

Answer 13

porifera and choanoflagellates, having no hands mouth or stomach, choanocyte cells help them survive

Question 14

alimentary canal

Answer 14

organ that food passes through, nematoda, arthropoda, Echinodermata, chordata

Question 15

basal bilateral group

Answer 15

controls motor learning and functions, acoela

Question 16

mantel which secretes shell

Answer 16

mollusca

Question 17

lopophore or trochopore larval stage

Answer 17

paltyhelminthes, syndermata, ecotoprocta, brachipoda, mollusca, annelidia, two bands of cilia around the body

Question 18

tough cuticle

Answer 18

tough but flexible outer covering of an organism, nematoda

Question 19

bastopore becomes anus

Answer 19

deuterostomes- echinodermata, chordatata

Question 20

acoelomates

Answer 20

Platyhelminthes, invertebrate lacking a coelom- they have no true body cavity between the layers of their tissues

Question 21

ecdysis

Answer 21

process of shedding skin or casting off outer cuticle, nematoda or arthropoda

Question 22

secondary symmetry

Answer 22

echinodermata, starts off as billateral symmetry but turns into radial symmetry

Question 23

18s rRNA shows common ancestry

Answer 23

platyhelminthes, syndermata, Ectoprocta, brachiopoda, mollusca, annelidia, a way to identify these organisms

Question 24

true tissues- eumetazoans

Answer 24

cnidarians and so on, does not include porifera or choanoflagellates

Question 25

bilaterals

Answer 25

bilateral symmetry, acoela and so forth, does not include cnidarians, porifera, or choanoflagellates

Question 26

radial symmetry

Answer 26

symmetry of 5 limbs, cnidarians

Question 27

articulated appendages with exoskeleton

Answer 27

arthropoda, segmented exoskeletons, includes most insects crustaceans and arachnids

Question 28

protonephridia

Answer 28

magnolids