animal features

Question 1

features of annelids

Answer 1

coelon, C/L muscle, no cuticle, hydrostatic skeleton

Question 2

features of platyhelminthes

Answer 2

no coelom, no anus, no hydrostatic skeleton

Question 3

features of molluscs

Answer 3

through-gut, shell and mantle, gills, radula

Question 4

features of gastropods

Answer 4

one shell (sometimes lost), torsion

Question 5

features of bivalves

Answer 5

two shells, foot in between, ligament to open the shell, gills

Question 6

features of cephalopods

Answer 6

exc. nautilus, reduced shell, closed blood system, large brain and well developed eyes, active hunting

Question 7

features of nematodes

Answer 7

non segmented, stiff cuticle, only L muscle, triradiate pharynx, moulting

Question 8

features of nematomorphs

Answer 8

long and thin, no functional gut

Question 9

features of tardigrades

Answer 9

small non-jointed legs, anhydrobiosis

Question 10

features of onychophora

Answer 10

small non-jointed legs, ‘glue guns’

Question 11

features of arthropods

Answer 11

segmentation, jointed appendages, exoskeleton

Question 12

features of hexapoda

Answer 12

(winged insects and some other arthropods) 6 legs, some undergo metamorphosis