Topic 13- The evolution of animals II Flashcards

1
Q

What is an invertebrates/ What is a defining characteristic? Give an example

A

Invertebrates = absence of backbone (spine)

Ex- earth worm

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2
Q

What is an porifera (sponges)/ What is a defining characteristic?

A

Porifera (sponges) = diploblastic animal with radical symmetry

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3
Q

What is an Ctenophora/ What is a defining characteristic?

A

Ctenophora = diploblastic animal with radical symmetry

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4
Q

What is an Cnidaria/ What is a defining characteristic? Give an example

A

Cnidaria = diploblastic animal with radical symmetry

Ex-jellyfish

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5
Q

Is radical symmetry for diploblastic or triploblastic animals? What are the layers

A

-Diploblastic
-Endoderm and ectoderm

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6
Q

Is bilateral symmetry for diploblastic or triploblastic animals? What are the layers?

A

-Triploblastic animals
-Endoderm, mesoderm, & ectoderm

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7
Q

What is an Ecdysozoa/ What is a defining characteristic? Give an example

A

Protostome animal that produce an exoskeleton (cuticle) periodically molted

Ex- Insects: fly

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8
Q

What is an Lophotrochozoa/ What is a defining characteristic? Give an example

A

Protosomes animal that either possess a lophophore or a trochophore

Ex- earth worm

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9
Q

What is an Echinodermata/ What is a defining characteristic? Give an example
*2 characteristics

A

-Deuterostome animal with bilateral symmetry
-Water circulatory system (ambulatory system)

Ex-star fish

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10
Q

What possess a notocord, nerve cord, and pharyngeal slits?

A

Chordata

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11
Q

What is a vertebrate?

A

Possess a skeletal system formed by a veterbrale column (the spinal cord = backbone)

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12
Q

What is a cyclostomes? Give an example

A

Veterbrates without jaws (they have a circular mouth)

Ex- lampreys and hagfish

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13
Q

What is a gnathostomes?

A

Vertebrates with jaw

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14
Q

What is a Chondrichthyes? Give 1-2 examples

A

-Skeleton made of cartilage
-tooth-like scales

Ex- Sharks, rays

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15
Q

What are the two types of Osteichtyes?

A

Ray-finned bony fish (bones are at the base of the fins)
lobe-finned bony fish (bones are at the tip of the fins)

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16
Q

What are tetrapods? What are the 3 types?

A

-“four limbs” with digits
-Mammals, reptiles, amphibians

17
Q

What is an example of an amphibian?

A

A frog, salamandar

18
Q

What is an example of a reptile?

A

Aligator, snake, turtle, iguana

19
Q

Birds are BLANK and BLANK dinosaurs

A

reptiles and bipedal

20
Q

What are Amniotes? and what animal groups do they protect?

A

Air insulation and ventilation of the membrane protecting the deveoppling embryo
-Including reptiles (birds) and mammals