Animal diversity

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Defining features of animals

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Animals are multicellular and eat other organisms for energy.

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Nutritional habits of animals

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Animals eat other organisms.

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41 Terms

1

Defining features of animals

Animals are multicellular and eat other organisms for energy.

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2

Nutritional habits of animals

Animals eat other organisms.

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3

How sponges feed

Sponges collect nutrients from water using choanocytes.

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4

Symmetry in jellyfish and corals

They exhibit radial symmetry.

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5

Characteristic of diploblastic animals

They have two body layers and one opening.

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6

Key feature of triploblastic animals

They have three embryonic layers.

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7

Benefit of bilateral symmetry

It helps in effective movement and hunting.

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8

Deuterostomes in chordates

The blastula becomes the anus.

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9

Notochord function

It supports the spinal column.

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10

Common trait of echinoderms

They have radial symmetry as adults.

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11

Function of tube feet in echinoderms

They help with movement and grabbing objects.

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12

Groups of vertebrates

Lob-finned fish, ray-finned fish, and tetrapods.

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13

What is a blastula?

A hollow ball of cells in early development.

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14

Difference between arthropods and deuterostomes

In arthropods, the mouth forms first.

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15

Function of lophophore

It is used for feeding.

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16

Examples of lophotrochozoans

Mollusks, annelids, and flatworms.

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17

Growth in ecdysozoans

They grow by shedding their exoskeleton.

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18

Roundworms vs. segmented worms

Roundworms lack segmentation; segmented worms are divided into segments.

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19

What are tardigrades?

Microscopic animals that survive extreme conditions.

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20

Characteristics of vertebrates

They have a central nervous system and an internal skeleton.

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21

Amniotes definition

They have eggs that allow development on land.

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22

Function of mammary glands

They provide milk for offspring.

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23

Marsupials' care for young

They carry young in a pouch.

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24

Innovation of jawed vertebrates

Jaws provided a feeding advantage.

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25

Function of pharyngeal slits

They act as gills for gas exchange.

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26

Groups of mammals

Prototherians (egg-laying), marsupials (pouch-care), eutherians (live birth).

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27

Characteristic of annelids

They have segmented bodies.

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28

Gastropods in mollusks

They include snails.

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29

Clade with jointed appendages

Arthropods.

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30

Types of arthropods

Crustaceans, hexapods, myriapods, and chelicerates.

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31

Lobe-finned fish significance

They are ancestors of land vertebrates.

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32

Amniotic eggs vs. regular eggs

Amniotic eggs have protective shells.

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33

Echinoderms' symmetry

They have radial symmetry as adults.

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34

Hagfishes and lampreys' feature

They lack jaws.

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35

Jointed limbs in arthropods

They help with movement and hunting.

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36

Blastula definition

It is an early embryonic structure.

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37

Central nervous system in chordates

It is a dorsal, hollow nerve cord.

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38

Reptiles' common feature

All have an amniotic egg.

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39

Postanal tail function

It aids in movement.

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40

Benefits of internal skeletons

They provide support and organ protection.

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41

Examples of prototherian mammals

The platypus.

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