Deutorstomes

studied byStudied by 0 people
0.0(0)
get a hint
hint

Deutorostomes

1 / 99

Tags and Description

Biology

100 Terms

1

Deutorostomes

Blastopore becomes anus and mouth is formed from second opening that develops

New cards
2

what are the four phyla of deuterostomes?

Echinodermata, Hemichordata, Xenoturbellida, Chordata

New cards
3

echindoderms

spiny skin or rough skin, they are all marine animals

New cards
4

What symmetry do echinoderms have?

radial symmetry more specifically pentaradial symmetry

New cards
5

what is the skeleton of echinoderms?

they have an endoskeleton

New cards
6

endoskeleton

internal skeleton or supporting framework in an animal

New cards
7

what system do echinoderms have?

water vascular system

New cards
8

placenta

A structure that allows an embryo to be nourished with the mother's blood supply

New cards
9

why do sharks have buoyancy?

because of low-density oils in the large liver

New cards
10

Facts/features about sharks

acute sense of smell and sound and sense electrical fields

New cards
11

spiral valve

corkscrew-shaped ridge that increase surface area and prolongs the passage of food along the short digestive tract

New cards
12

what is the most successful vertebrate lineage

actinopterygii

New cards
13

what animals are actinopterygii

ray-finned fishes

New cards
14

Swim Bladder

an air-filled sac near the spinal column in many fishes that helps maintain buoyancy

New cards
15

gestation

development period where offspring emerges from the mothers body

New cards
16

why are they bilaterian?

because their larvae are bilaterally symmetric

New cards
17

Adult echinoderms are..

radially symmetric

New cards
18

tube feet

part of the water vascular system that is elongated fluid-filled structures

New cards
19

What kind of feet do echinoderms have?

podia and tube feet

New cards
20

podia

sections of the tube feet that project outside the body and are involved in motion along a substrate

New cards
21

What is the endoskeleton composed of?

calcium carbonate

New cards
22

synapomorphy of echinoderms

water vascular system and endoskeleton

New cards
23

What does starfish podia help them with?

opening shells by pulling them apart

New cards
24

how do they obtain food?

the podia can flick food into cillia and then the mouth, they can open shells

New cards
25

Lineages of Echinodermata

crinoidea, asteroidea, opiuroidea, echinoidea, holothuroidea

New cards
26

what do brittle stars look like?

New cards
27

What is the most abundant species of echinoid?

sea urchins

New cards
28

what phylum do sea urchins belong to?

echinoidea

New cards
29

what phylum do sea stars belong to?

asteroidea

New cards
30

Synapomory/ defining features of Chordata

pharyngeal gill slits, nerve cord, notochord, post-anal tail

New cards
31

fish belong to what phylum

Chordata

New cards
32

what are the three major lineages of chordata

cephalochordates, urochordates and vertebrates

New cards
33

cephalochordates

small mobile suspension feeders that resemble fish

New cards
34

urochordates

A chordate without a backbone, commonly called a tunicate, a sessile marine animal.

New cards
35

to which group do sea squirts and salps belong to?

urochordata

New cards
36

what is the difference between sea squirts and salps?

sea squirts live on the ocean floor and salps live in the open ocean

New cards
37

vertebrates

dorsal hollow nerve cord elaborated into spinal cord

New cards
38

Are Urochordates sessile or motile?

they are sessile when adults

New cards
39

Cephalochordata

a chordate clade whose members possess a notochord, dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail in the adult stage

New cards
40

what are the synapomorphies of vertebrates?

have vertebrae and cranium

New cards
41

what are the three regions of the brain

forebrain, midbrain and hindbrain

New cards
42

forebrain

houses the sense of smell

New cards
43

midbrain

associated with vision

New cards
44

hindbrain

responsible for balance and hearing

New cards
45

what are the most species rich and ecologically diverse vertebrate lineages?

ray-finned fishes and tetrapods

New cards
46

what is the air bladder?

New cards
47

what developed first in vertebrates?

bony exoskeleton

New cards
48

what was the function of bony endoskeleton?

to support movement and rapid swimming

New cards
49

what is the function of the air bladder?

New cards
50

keel

a projection off the bird sternum that provides surface area for muscle attachment of the wings

New cards
51

amnion

protective inner membrane where the embryo develops

New cards
52

yolk sac

contains nutrients for the embryo

New cards
53

allantois

waste storage

New cards
54

chorion

allows gas exchange

New cards
55

albumen

a membrane-bound supply of water in a protein-rich solution

New cards
56

true or false: birds are endothermic and exothermic

false they are only endothermic

New cards
57

amniotic egg

A shelled, water-retaining egg that enables reptiles, birds, and egg-laying mammals to complete their life cycles on dry land

New cards
58

oviparous

egg laying animals

New cards
59

viviparous

species that give birth

New cards
60

ovoviviparous

female produces an egg with a nutrient-rich yolk and retains it within her body

New cards
61

parental care

any action by a parent that improves the ability of its offspring to survive

New cards
62

what are the only vertebrates that lack jaws

hagfish and lampreys

New cards
63

what are the 3 lineages of mammals?

monotremata, marsupiala, eutheria

New cards
64

endothermy

regulate their body temps with internally generated heat

New cards
65

3 distinguishing characteristics of mammals

insulating hair, endothermy, mammary glands

New cards
66

what grouping are mammals

monophyletic

New cards
67

most ancient mammals

monotremes

New cards
68

examples of eutheria

monkeys,

New cards
69

examples of marsupials

opossums, kangaroos, and koalas

New cards
70

Examples of monotremata

platypus, echidna

New cards
71

key feature of monotremes

lay eggs and have low metabolic rates

New cards
72

viviporus

live birth

New cards
73

what group are retilia

monophyletic

New cards
74

diapsids

two holes on each side of skull

New cards
75

synapsids

one hole on each side of skull

New cards
76

which are diapsid and synapsid

reptiles diapsid, mammals are synapsids

New cards
77

4 major lineages of reptiles

lizards/snakes, turtles, crocodiles/alligators, birds

New cards
78

ectothermic

do not use internally generated heat to regulate body temp (cold-blooded)

New cards
79

are birds under reptilia?

yes

New cards
80

examples of birds

albatross,

New cards
81

how are tortoises and turtles differentiated

bony plate

New cards
82

birds descended from?

feathered dinosaurs

New cards
83

birds are the only

endotherms within the reptilia

New cards
84

Features of Crocodilians

eyes located on the top of the head and nostrils located at the top of their long snouts

New cards
85

true or false: all crocodilians are predators

true

New cards
86

which group are the only endotherms within reptilia

birds

New cards
87

the primate lineages consist of what two groups

prosimians and anthropoids

New cards
88

Prosimians

before monkeys, ex. lemurs

New cards
89

anthropoids

human like

New cards
90

ex. new world monkeys, apes and humans

New cards
91

where do prosimians live?

africa, madagascar and south asia

New cards
92

what are some defining characteristics of primates?

hands/feet for grasping, color vision, large brain, paternal care

New cards
93

what are great apes also called

hominids

New cards
94

what is a synapomorphy that defines hominins (humans)

bipedalism

New cards
95

What four groups are hominins (humans organized in)

Australopithecus, paranthropus, early homo, recent homo

New cards
96

What is australopithecus composed of?

four species of small apes called gracile australopithecines

New cards
97

what is paranthropus composed of?

bipedal robust australopithecines

New cards
98

what is early homo composed of?

first humans

New cards
99

what is recent homo composed of?

1.2 mya to present humans includes neanderthals

New cards
100

out of Africa hypothesis

scenario for the evolution of homo sapiens

New cards

Explore top notes

note Note
studied byStudied by 12 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 12 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 63 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 22 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 12 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 6 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 37 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 101 people
Updated ... ago
5.0 Stars(4)

Explore top flashcards

flashcards Flashcard212 terms
studied byStudied by 12 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard43 terms
studied byStudied by 12 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard50 terms
studied byStudied by 3 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard65 terms
studied byStudied by 5 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard20 terms
studied byStudied by 23 people
Updated ... ago
5.0 Stars(2)
flashcards Flashcard44 terms
studied byStudied by 5 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard30 terms
studied byStudied by 4 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard26 terms
studied byStudied by 5 people
Updated ... ago
5.0 Stars(1)