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BIO Lab practical 2 > Animal Diversity > Flashcards

Animal Diversity Flashcards

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Biology 101 flashcards
1
Q

Animals are classified under which DOMAIN?

A

Domain Eukarya

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2
Q

What KINGDOM are animals under?

A

Kingdom Animalia

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3
Q

Under what CLADE are animals under?

A

clade Metazoa

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4
Q

The phylogenetic tree divides the Metazoa clade in what TWO major clade?

A
  1. Phylum Porifera, The sponges 2. Phylum Eumetazoa, All other animals
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5
Q

What leads biologist to classify sponges in their own phyla?

A

Sponges have a unique body forms.

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6
Q

What is unique about sponges that sets them seperately from other phylas?

A

They lack true tissue and organs They have no body symmetry They are sessile No mouth or anus

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7
Q

What is the symmetry of Phylum Porifera (sponges)?

A

Asymmetrical (no symmetry)

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8
Q

What is the tissue organization of spnges?

A

No tissue, aggregate of different cells, no body layers

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9
Q

Do sponges have a body cavity?

A

No body cavity

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10
Q

Do sponges have Digestive opening?

A

No, no mouth or anus

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11
Q

Do sponges have a Circulatory or Nervous system?

A

No

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12
Q

What kind of habitat do sponges have?

A

Marine habitat

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13
Q

What kind of Excretory system do sponges have?

A

pores and channels for circulation of water, oxygen, nutrients and to remove waste.

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14
Q

What kind of support system do sponges have?

A

Silica or calcium-carbonate based spicules

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15
Q

Do sponges have segmentation, appendages or locomotion?

A

No, No, No

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16
Q

What is an organism was used for Phylum Cnidaria in class?

A

Hydras

17
Q

What are the TWO body forms that Phylum Cnidarians have in their life cycles?

A
  1. Medusa (umbrella-like, free swimming stage) 2. Polyp (cylindrical)
18
Q

What is the symmetry of a Hydra?

A

radial symetrical

19
Q

A Blastopore becomes what in the protostomes and what in deuterosomes?

A

Mouth in protostomes Anus in deuterosomes

20
Q

What are the two major groups within the Protostomes?

A

Lophotrochozoa Ecdysozoa

21
Q

Under the Protostomes what is a Lophotrochozoa?

A

They are named for trochophore larvae found in annelids and molluscs.

22
Q

Under the Protostomes what is an Ecdysozoa?

A

animals in this group exhibit molting or the shedding of their outer body cover.

23
Q

What is the outer covering called in nematodes?

A

Cuticle

24
Q

What is the outer covering called in arthropods?

A

exoskeleton

25
Q

What are the two clades under the Phylum Metazoa?

A

Eumetazoa

Porifera

26
Q

How do we devide the clade Eumetazoa?

A

Radial symmetry and Bilateral symmetry

27
Q

What is the only radial symmetrical clade?

A

Cnidaria

28
Q

What is the name of the clade for animals with bilatiral symmetry (you better not get this wrong!!!)?

A

Clade Bilateria

29
Q

When looking at Clade Bilateria what three clades come out of it?

How are they seperated?

A

LED- Lophotrochozoa (LOW-FO-TRO-KO-ZOA), Ecdysozoa ( EK-DIE-SOZOA), Deuterostomia (DU-TERO-STOMIA)

LE-D

30
Q

What two phylums are under clade Deuterostomia?

A

Echinodermata (Starfish), Chordata (Pig, Lancelet)

31
Q

What are the two phylums under the clade Ecdysozoa?

A

Nematoda, Arthropoda

32
Q

What are the three phylums under the clade Lophotrochozoa?

How are they seperated?

A

PAM- Platyhelminthes (Flat worms) , Annelida (Earthworm), Mollusca (Clams)

P- AM

33
Q

What are the two phylums under clade Ectosozoa?

A

Nematoda (Ascaris Roundworms), Arthropods (Grasshopper)

34
Q

What does an Acoelomate consist of (2)?

A

3 layered bodies without a body cavity.

Tissue from the mesoderm fills the space where cavity might be (tissue layers closely packed on one another).

35
Q

What does a Pseudocoelomate consist of?

A

3 layered bodies with a cavity between the endoderm and medoderm

36
Q

What does a Coelomate consist of?

How are the guts of a Coelomate organism suspended?

A

3 layered bodies with a coelom (cavity) WITHIN the mesoderm (completely surrounded by mesoderm)

They are suspended by Mesodermal membranes within body cavity

37
Q
A

BIO Lab practical 2 (1 decks)

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