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Animal Kingdom 🐕 🦁 Flashcards

1
Q

What is the term for organisms that exhibit no symmetry?

A

Asymmetry

Example: Porifera

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2
Q

What type of symmetry do Coelenterata exhibit?

A

Radial Symmetry

Symmetry along any plane passing through the center

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3
Q

What is a coelom?

A

Body cavity present between the body wall and the gut wall

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4
Q

What is mesoglea?

A

Jelly-like matrix

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5
Q

What is the middle germ layer called?

A

Mesoderm

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6
Q

Which phylum exhibits segmentation?

A

Annelida

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7
Q

What are the two types of body symmetry?

A
  • Radial Symmetry
  • Bilateral Symmetry
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8
Q

What type of circulatory system has blood enclosed in vessels?

A

Closed Circulatory System

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9
Q

What type of circulatory system allows blood to flow freely through body cavities?

A

Open Circulatory System

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10
Q

What are the two classifications of germ layers?

A
  • Diploblastic
  • Triploblastic
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11
Q

What term describes organisms with no coelom?

A

Acoelomata

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12
Q

What is the term for organisms with a false coelom?

A

Pseudocoelomata

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13
Q

What structure is rod-like and derived from mesoderm?

A

Notochord

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14
Q

Which phylum is known to have a true coelom?

A

Eucoelomata

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15
Q

Fill in the blank: The circulatory system found in Porifera, Coelenterata, and Ctenophora is _______.

A

Diploblastic

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16
Q

Fill in the blank: The circulatory system found in Mollusca, Echinodermata, Chordata, and Arthropoda is _______.

A

Eucoelom

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17
Q

What is the dorsal side of an animal often referred to?

A

Upper side or back side

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18
Q

What type of organisms are classified as eukaryotic?

A

Organisms with complex cells that contain a nucleus

Includes all multicellular organisms such as mammals, birds, and other vertebrates.

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19
Q

What is the defining characteristic of the kingdom Animalia?

A

Heterotrophic organisms that are mostly mobile

Animals obtain food by consuming other organisms.

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20
Q

What is the body organization level of Porifera?

A

Cellular level organization

Porifera, or sponges, have a simple structure with no true tissues.

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21
Q

What is a unique feature of Porifera?

A

They have holes called pores, making their body perforated

These pores are part of the water canal system.

22
Q

What type of symmetry do Cnidaria exhibit?

A

Radial symmetry

This allows them to be divided into equal parts around a central axis.

23
Q

What is the body structure of Platyhelminthes?

A

Dorsoventrally flattened body with bilateral symmetry

They can be either parasitic or free-living.

24
Q

Fill in the blank: Cnidaria have _____ that are known as Nematocysts.

A

Stinging cells

These cells are used for capturing prey and defense.

25
What type of digestive system do Cnidaria possess?
Incomplete digestive system with a single opening ## Footnote This means they have a mouth but no anus.
26
What type of animals are classified as hermaphrodites?
Animals with both male and female reproductive structures ## Footnote Examples include many species in Platyhelminthes and some mollusks.
27
What is the defining characteristic of Arthropoda?
Presence of an exoskeleton made of chitin ## Footnote This group includes insects, arachnids, and crustaceans.
28
What type of body cavity do Platyhelminthes have?
Acoelomate (true internal cavity/coelom absent) ## Footnote They lack a body cavity between the digestive tract and outer body wall.
29
What is a unique feature of Echinodermata?
They exhibit radial symmetry and a hard skeleton made of calcium carbonate ## Footnote Examples include sea stars and sea urchins.
30
What is the body organization level of Ctenophora?
Organ level organization ## Footnote Ctenophora, or comb jellies, have a more complex structure than sponges.
31
Fill in the blank: The central gastrovascular cavity is present in _____ and is used for digestion.
Cnidaria ## Footnote This cavity serves as both a digestive and circulatory system.
32
What type of symmetry do Ctenophora exhibit?
Radial symmetry ## Footnote This allows them to capture prey from all directions.
33
What is the primary method of reproduction in Ctenophora?
Sexual reproduction ## Footnote Some species also exhibit asexual reproduction.
34
What type of animals are classified as non-motile?
Animals that do not move actively and are usually attached to a surface ## Footnote Examples include sponges and some corals.
35
What type of animals are warm-blooded?
Mammals ## Footnote Warm-blooded animals maintain a constant internal body temperature regardless of external conditions.
36
What is the classification of organisms in the Kingdom Animalia based on?
Heterotrophic, absence of cell wall, multicellular, eukaryotic ## Footnote Organisms in the Kingdom Animalia are characterized by their methods of obtaining food and structural features.
37
What level of organization do Porifera exhibit?
Cellular level organization ## Footnote Porifera, commonly known as sponges, have a simple structure without true tissues or organs.
38
What type of symmetry do Cnidaria exhibit?
Radial symmetry ## Footnote Radial symmetry allows Cnidaria to be divided into equal parts from a central point.
39
What are the two germ layers present in diploblastic organisms?
Ectoderm and endoderm ## Footnote Diploblastic organisms, such as Porifera and Cnidaria, have two primary germ layers.
40
True or False: All Cnidaria are exclusively marine.
False ## Footnote While most Cnidaria are marine, some species, like Hydra, are found in freshwater.
41
What type of body plan do Platyhelminthes have?
Dorsoventrally flattened body ## Footnote This characteristic allows for a flat shape, which aids in movement and nutrient absorption.
42
What type of symmetry do Platyhelminthes exhibit?
Bilateral symmetry ## Footnote Bilateral symmetry means the organism can be divided into identical halves along one plane.
43
Fill in the blank: Cnidoblasts contain _______ which are used for stinging.
Nematocyst ## Footnote Nematocysts are specialized cells in Cnidaria that enable them to capture prey and defend against threats.
44
What is the main characteristic of the Echinodermata phylum?
Hard skeleton made of calcium carbonate ## Footnote Echinoderms, such as starfish and sea urchins, have a unique endoskeleton that provides structure and protection.
45
What type of digestive system do some invertebrates have?
Incomplete digestive system ## Footnote An incomplete digestive system has a single opening that serves as both mouth and anus.
46
What is the primary habitat of Ctenophora?
Exclusively marine ## Footnote Ctenophores, also known as comb jellies, thrive in oceanic environments.
47
What are flame cells used for?
Excretion and osmoregulation ## Footnote Flame cells are specialized excretory cells found in some invertebrates, including Platyhelminthes.
48
What is a common reproductive trait of Ctenophora?
Hermaphroditism ## Footnote Ctenophores possess both male and female reproductive organs, allowing for flexible reproduction.
49
List the main classes of Cnidaria.
* Scyphozoa * Hydrozoa * Anthozoa ## Footnote These classes represent different types of jellyfish, hydras, and sea anemones within the Cnidaria phylum.
50
What characterizes the body structure of Arthropoda?
Exoskeleton made of chitin ## Footnote The exoskeleton provides protection and support to arthropods, which include insects and crustaceans.
51
What type of skeleton do Echinodermata have?
Endoskeleton ## Footnote Echinoderms have a skeleton located inside their bodies, providing structural support.
52
True or False: All Porifera are sessile (non-motile).
True ## Footnote Porifera are anchored to a substrate and do not move, relying on water flow for nutrient intake.

Bio Animal Kingdom (1 decks)

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