Arthropods

Question 1

“arthropods” came from the Greek words:

Answer 1

Arthros- and -poda

Question 2

arthros- means?

Answer 2

Segmented

Question 3

-poda means?

Answer 3

Foot

Question 4

This phylum includes large classes with about nine lakh species. They may be aquatic, terrestrial or parasitic. They have jointed appendages and a chitinous exoskeleton. They have the ability to survive in every habitat. Invertebrates. Some are the mosts successful animals in the Earth’s history.

Answer 4

Arthropods

Question 5

Arthropods first appeared around ______ million years ago.

Answer 5

500

Question 6

Arthropods have a hard outer covering called ________ which is composed primarily of chitin, a tough polysaccharide. This provides protection and support for the body and serves as a surface for muscle attachment.

Answer 6

Exoskeleton

Question 7

The bodies of arthropods are divided into _________ __________.

Answer 7

Distinct segments

Question 8

The bodies of arthropods are typically organized into three regions:

Answer 8

Head
Thorax
Abdomen

Question 9

Arthropods possess jointed _________ or _________ which are crucial for locomotion, feeding, sensing the environment, and reproduction.

Answer 9

Limbs or appendages

Question 10

In many arthropods, certain segments of the body are fused together into functional units called?

Answer 10

Tagmata

Question 11

The fusion of head and thorax

Answer 11

Cephalothorax

Question 12

A process in which arthropods shed their exoskeleton to accommodate growth. It allows arthropods to increase in size and replace damaged or old exoskeleton.

Answer 12

Molting

Question 13

Compound eyes of arthropods consist of multiple individual units called?

Answer 13

Ommatidia

Question 14

Sensory appendages located on the head. Are used for detecting chemicals, touch, and sometimes even sound or vibrations.

Answer 14

Antennae

Question 15

Large group of arthropods that comprises the arachnids, sea spiders, and horseshoe crabs. They lack antennae but possess a pair of chelicerae, a pair of pedipalps, and four pairs of legs. Have two body segments (tagmenta) and six pairs of appendages. 77,000 living species.

Answer 15

Chelicerata

Question 16

Mostly found on land, body is differentiated into cephalothorax and abdomen, antennae are absent, abdomen is divided into 13 segments, has four pairs of interior appendages, respire through trachea or gills, and the Milpighian tubules help in excretion.

Answer 16

Chelicerata

Question 17

Large group of mainly aquatic arthropods that include crabs, lobsters, shrimps, wood lice, barnacles, and many minute forms. 50,000 known species.

Answer 17

Crustacea

Question 18

Major groups of Crustacea:

Answer 18

Branchiopods
Maxillopods
Ostracods
Malacostraca

Question 19

They are aquatic, terrestrial, or parasitic, have cephalothorax, respiration occurs through gills or general body surface, body is covered by a single large carapace, possess two pair of antennae and five pairs of appendages, excrete through green or antennal glands, have pair of compound eyes and gonopores, development is direct, and larval stage is present.

Answer 19

Crustacea

Question 20

Class of six-legged arthropods that comprises of insects.
“Insecta”
Largest group of arthropods. Head, thorax, and abdomen, constituting three tagma.

Answer 20

Hexapoda

Question 21

Many legged, the species in this group have as few as nine and as many as 200 pairs of legs! Have long, worm-like bodies and range in size from microscopic to almost a foot in length. They have a head and a multi-segmented trunk, with multiple legs running down either side of their body.

Answer 21

Myriapoda

Question 22

Distinct from phylum Annelida. Strange little elongated wormlike terrestrial invertebrates that live in damp, dark places in warm climates. Resemble slugs with legs.

Answer 22

Onychopora

Question 23

Comprises the extinct marine arthropods known as Trilobites. From the Early Cambrian until the end of Permian epoch. Fossil record of 270 million years.

Answer 23

Trilobitomorpha

Question 24

Beetle that belongs to the order Coleoptera. It is a significant pest of coconut palms and other palm species.

Answer 24

Coconut Rhinoceros Beetle “Uang”

Question 25

“Titan beetle”
family Cerambycidae
natuve to the Philippines

Answer 25

Titan Longhorn Beetle “Bukbok”

Question 26

Largest terrestrial arthropod and a species of hermit crab.
Birgus latro

Answer 26

Coconut crab “Ipis dagat”