Week 4 Flashcards Preview

Bio Lab > Week 4 > Flashcards

Flashcards in Week 4 Deck (54)
Loading flashcards...
1

Annelids include

Earthworms
Leeches
Polychaetes

2

Most distinctive characteristic of annelids

Segmentation

3

Annelids have small bristle appendages that occur in pairs on lateral/ventral surfaces called

Setae

4

Setae are filled with what for defense

Poison

5

Leeches that lack segmentation and have no setae

Hirudineans

6

Most diverse/abundant phylum of animals

Anthropods

7

Anthropoids are successful in habitats because of their

Segmentation which allows division of labor between regions

8

What is used to classify anthropods

Arrangement of segments and structure of appendages

9

What is the exoskeleton of Arthropods made of?

Chitin

10

What does chitin do?

Protects from predators and environment
Prevents desiccation
Place for muscle attachment

11

Chelicerates are

Spiders
Scorpions
Horseshoe crabs

12

Why are crustaceans different from anthropods

Biramous appendages

13

What does biramous mean

Double branched appendage

14

5 anterior pairs of crustacean appendages

First antennae
Second antennae
Mandibles
Maxillae
Maxillipeds

15

What is the shape of crustacean hearts?

Diamond shaped

16

Group of anthropods that can breathe through channels in body. Includes myriapods and hexapods

Tracheata

17

Includes centipedes and millipedes

Myriapoda

18

Appendages modified for feeding

Maxillipeds

19

Largest group of organisms on earth

Insects (hexapods)

20

3 desperate body regions of insects

Head
Thorax
Abdomen

21

Deuterostomes

Echinoderms

22

Deuterstomes differ in embryonic development because

They develop anus to mouth

23

What ability do echinoderms posses

Ability to regenerate after losing portions of their body

24

5 classes of echinoderms

Asteroida
Ophiuroidea
Echinoidea
Crinoidea
Holothruroidea

25

Chordata 4 shared key features

Dorsal hollow nerve cord
Notochord
Pharyngeal slits
Postanal tail

26

2 classes of invertebrates

Tunicates
Lancelets

27

Chondrichthyes are

Echotherms and sharks

28

Vertebrates have a distinctive

Head and vertebral column

29

Jawless fishes with cartilaginous endoskeletons

Agnathans

30

Do not regulate their own temperature and external changes affect internal temp

Ectotherms