Animal Characteristic (8.7) Flashcards Preview

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Flashcards in Animal Characteristic (8.7) Deck (42)
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1
Q

About 800 MYA (in the Pre-Cambrian Era) multicellular animals evolved from the ______ kingdom.

A

protist

2
Q

They would have evolved from a group of ____-_______

protists.

A

multi-cellular

3
Q

About 360 MYA animals (_____) begin to colonize land.

A

fish

4
Q

About 250 MYA Pangaea forms causing mass extinctions of _____ and ________. (Reptiles survive dry climate.)

A

fish, amphibians

5
Q

About 180 MYA _______ breaks apart.

A

Pangaea

6
Q

About 65 MYA an asteroid collides with Earth causing mass extinction of __________/_________. (Mammals survive)

A

reptiles/dinosaurs

7
Q

Animals traits

A

Multi-cellular heterotrophs by ingestion
Have no cell walls
Most have muscle and nervous tissue for movement and responding to a changing environment
Exhibit diploid dominant life-styles
(Reproduce sexually using flagellated sperms and non motile eggs that are haploid. Gametes fuse together to make diploid zygote. The zygote will continue to grow, by mitosis, and develop into the organism)

8
Q

Multi-cellular heterotrophs by ________

A

ingestion

9
Q

Do animals have cell walls?

A

no

10
Q

They have _____ and ______ tissue for movement and responding to a changing environment

A

muscle and nervous

11
Q

Exhibit ______ dominant life-styles

A

diploid

12
Q

They reproduce _________

A

sexually

13
Q

Gametes fuse together to make a _______ ________.

A

diploid zygote

14
Q

like animals

A

Parazoa

15
Q

true animals

A

Eumetazoa

16
Q

______ are asymmetrical, have no true tissues, and are non-motile but are heterotrophic

A

Parazoa

17
Q

a body plan in which the parts are organized in a circle around an axis

A

radial symmetry

18
Q

a condition in which two equal halves of a body mirror each other

A

bilateral symmetry

19
Q

two tissues (__________…. no muscle tissue) nerve net

A

diploblastic

20
Q

three tissues (__________), nervous system

A

triploblastic

21
Q

Three tissues

A

ectoderm, mesoderm, endoderm

22
Q

makes skin and nervous tissue

A

ectoderm

23
Q

makes muscles, bones, heart

A

mesoderm

24
Q

makes the digestive organs/tract, liver, and lungs

A

endoderm

25
Q

back/top

A

dorsal

26
Q

front/botton

A

ventral

27
Q

toward the head

A

anterior

28
Q

toward the tail

A

posterior

29
Q

the accumulation of senses in the head region of an animal

A

cephalization

30
Q

These are “without a cavity” animals (They tend to be very small - diffusion/osmosis is main transport system)

A

Acoelomates

31
Q

These are the false cavity animals (The space/cavity is between two different tissues) (The fluid filled space acts as a hydrostatic skeleton)

A

Pseudocoelomates

32
Q

These are the true cavity animals (The space is within one tissue - the mesoderm. It is for organ spaces and protection from the digestive tube)

A

Coelomates

33
Q

an organism whose embruing blastopore develops into an anus, whereas its mouth develops from a second opening at the opposite end of the archenteron; usually characterized by an embryo that undergoes indeterminate, radial cleavage

A

deuterostomes

34
Q

an organism whose embryonic blastopore develops into the mouth whose coelom arises by schizocoely and whose embryo has determinate cleavage

A

protostomes

35
Q

____________ are Echinoderms and Chordates (includes humans)

A

Dueterostomes

36
Q

__________ are Mollusks, Annelids, and Arthropods

A

Protostomes

37
Q

uses our senses to detect environment stimulus and cues as well as control bodily function

A

nervous system

38
Q

moving the organism about the environment

A

muscular/bone system

39
Q

moving oxygen and nutrients through an organisms whole body

A

circulatory system

40
Q

to perform gas exchange with the environment (O2 in, CO2 out)

A

respiratory system

41
Q

to breakdown food to the cellular level for providing nutrients to the cells

A

digestive system

42
Q

to dispose of liquid nitrogenous waste

A

excretory system