Exercise 9: Subphyla Chelicerae and Crustacea

Question 1

Largest Phyum

Answer 1

Phylum Arthropoda

Question 2

Give me the meaning of

Arthros =
Podos =

Answer 2

• Joined
• Foot

Question 3

2 Subphylum of Arthropoda

Answer 3

Subphylum Chelicerata
Subphylum Crustacea

Question 4

Give examples of animals in Subphylum Chelicerata?

Answer 4

Spiders
Scorpions
Ticks
Mites

Question 5

In subphylum Chelicerata

Body consist of an anterior _____ and a posterior _______.

Answer 5

Prosoma,
Opisthosoma

Question 6

In subphylum Chelicerata

Prosoma bears the appendages involved in _____ and ______.

Answer 6

feeding,
locomotion

Question 7

Main appendages of subphylum Chelicerata

Answer 7

chelicerae,
pedipalps

Question 8

What is absent in subphylum Chelicerata

Answer 8

Antennae and Mandibles

Question 9

First land animals in evolution of Arthropoda which have successfully colonized the terrestrial environment.

Answer 9

Subphylum Chelicerata

Question 10

How many pairs of walking legs does spiders have?

Answer 10

4 pairs of walking legs

Question 11

_______ are subchelate and contain poison glands.

Answer 11

Chelicerae

Question 12

What type of eyes does spider have?

Answer 12

Compound or Ocelli eye

Question 13

________ lacks appendages but bears _____ pairs of _____.

Answer 13

Opisthosoma,
three,
spinnerets

Question 14

In spiders,

Respiration occurs through ______ and ______

Answer 14

book lungs,
trachea

Question 15

In spiders,

Excretion by ________ and __________

Answer 15

malpighian tubules,
coxal glands

Question 16

Sexes are separate in spiders. Male spiders are ______ than females

Answer 16

smaller

Question 17

The legs of male spiders are longer and bear additional _________ for detecting ________.

Answer 17

chemo-sensors,
willing females

Question 18

Give me some animals in subphylum Crustacea?

Answer 18

Crabs
Shrimps
Crayfish
Barnacles
Pill bugs
Water fleas

Question 19

Thin chitinous bristles used in feeding, burrowing, and locomotion

Answer 19

Setae

Question 20

Biramous appendages used in locomotion and respiration.

Answer 20

Parapodium

Question 21

Glandular swelling used during sexual reproduction and to produce cocoon for eggs

Answer 21

Clitellum

Question 22

Its function is analogous to liver; stores nutrients, manufactures blood cells, helps in defense and helps to remove metabolic wastes

Answer 22

Chlorogogue cells

Question 23

A triangular appendages used in locomotion and respiration

Answer 23

Prostomium