Question

12. Spiders are recognized by having a (?) as part of its body major parts, (?) legs to move around with and (?)(?) to spin their webs.

13. Spiders use the (?) property of their silk to set up traps for ground dwelling critters.

14. Steroid (?) such as (?) intervenes in the process of (?) to ensure the proper steps from egg to larva to pupa to adult.

15. The (?) is the most distal piece of a uniramous leg.

16. The (?) of the UROPYGI bears a long whip-like tail known as a (?). These animals release (?)(?) from their anal gland as a defense mechanism.

17. The acari include (?)(parasites) and (?)(ectoparasites) which use their biting or sucking mouthparts to get their meals. They use their tiny size to hitch a ride on other animals, a behavior that is known as (?).

18. The arthropod’s (?) is the 1st pair of modified appendages closest to the oral area and the pedipalps are the appendages used in (?) and capturing prey.

Answer 1

Ques-12. Spiders are recognized by having a (?) as part of its body major parts, (?) legs to move around with and (?)(?) to spin their webs.

( cephalothorax) as part of its body major parts,

(4 pairs of) legs to move around with

(sticky) (non-sticky) to spin their webs

Reason:

Spiders belong to arthropods phylum and they have head thorax, abdomen. The head and thorax are together to form cephalothorax. This is a major part of the spider. Spider possesses 4 pairs of legs to move.

A spider spins its web using both sticky and non-sticky types of silk. They have antennae and silk production properties.