Exercise 1: Arachnids

Question 1

ARACHNIDS

Answer 1

1. 2 body regions
2. 6 pairs of appendages in cephalothorax
3. 3 pairs of appendages in abdomen

Question 2

TWO BODY REGIONS OF ARACHNIDS

Answer 2

1. cephalothorax (head)
2. abdomen

Question 3

PAIRS OF APPENDAGES IN CEPHALOTHORAX

Answer 3

1. chelicerae
2. pedipalps
3. 4 pairs of walking legs

Question 4

PAIRS OF APPENDAGES IN ABDOMEN

Answer 4

1. spinnerets

Question 5

PEDICEL

Answer 5

1. slender waist separating cephalothorax and abdomen of spiders

Question 6

MITES

Answer 6

1. reduced segmentation
2. appears roundish without divisions

Question 7

BODY REGIONS OF MITES

Answer 7

1. gnathosoma: jaw
2. idiosoma: brain functionality