Arthropod review pt. 2

Match the following

• Have two pairs of antennae, biramous appendages, a cephalothorax and abdomen as tagmata

• Subphylum chelicerata

• Has 3 tagmata, wings on the thorax, 3 pairs of legs on the thorax

• Subphylum Trilobitomorpha

• Have a prosoma with chelicerae, pedipalps, and walking legs and an opisthoma

• Subphylum hexapoda

• Extinct Subphylum of arthropoda

• Subphylum crustacea

• Has a head and trunk with pairs of leg(s) on each trunk segment, all terrestrial

• Subphylum myriapoda

Which phylum is the most successful on the planet?

• Annelida

• Mollusca

• Arthropoda

• Echinodermata

The body plan of insects is split into segments that are specialized, which is referred to as

• segmentation

• metamerism

• specialization

• tagmatization

Answer explanation

the key word here was specialized. segmentation refers to the repeating units and tagmatization refers to the specialization of those units

What is the exoskeleton of Arthropods composed of?

• chitin and protein

• chitin and cellulose

• cellulose and protein

• glycogen and protein

In what order does ecdysis occur?

• Enzymes begin to digest the old cuticle

• The new exoskeleton hardens

• New procuticle and epicuticle are secreted

• The old exoskeleton splits open

Which is not one of the four successful traits of Arthropods?

• Metamorphosis

• The Hemocoel

• Exoskeleton

• Metamerism

• Flight

What is the benefit of metamorphosis?

• Increases competition between immature and adult forms

• Reduces competition between immature and adult forms

• Protects organism from losing water and predators

• A more complicated life cycle is always better

What is the cavity called where blood washes body tissues in the open circulatory system of Arthropods?

• hemocoel

• blastocoel

• blastopore

• deuterostome

Ticks are in class Arachnida and order

• Scorpionida

• Araneae

• Opiliones

• Acarina

Harvestmen are in class Arachnida and order

• Scorpionida

• Araneae

• Opiliones

• Acarina