Exam 3 Flashcards

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1
Q

Features shared of all animals

A

Heterotrophy-obtain energy by ingesting other organisms

Multicellularity-complex bodies

No cell walls-cell walls are flexible

Tissues-cells organized into structural units

Sexual reproduction, embryonic development, active movement, diversity of form, diversity of habitat

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2
Q

Symmetry in animals

A

Sponges-no symmetry

Cnidarians-radial symmetry

Bilaterians-all animals with bilateral symmetry

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3
Q

Types of embryonic development

A

Diploblastic-animals w 2 germ layers (ectoderm-endoderm) *cnidarians

Triploblastic-animals w 3 germ layers(ectoderm, endoderm, mesoderm) *bilaterians

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4
Q

Types of bilaterian embryonic development

A

Protostomes-blastopore becomes mouth

Deuterostomes-blastopore becomes anus

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5
Q

Three germ layers

A

Ectoderm-outer layer
Mesoderm-bilaterians only
Endoderm-digestive and respiratory

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6
Q

Endocrine vs exocrine

A

Endocrine:secrete their substances directly into your bloodstream

Exocrine:secrete their substances through ducts onto your body’s surface

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7
Q

Levels of tissue organization

A

Embryonic Tissue-ectoderm, mesoderm, endoderm

Epithelial Tissue:Simple and stratified epithelium

Nerve Tissue:Neurons

Connective Tissue:Cartilage tissue(joint surfaces), blood tissue, bone tissue

Muscle Tissue: skeletal muscle(connected to bones), cardiac muscle(walls of heart), smooth muscle(walls of blood vessels and visceral organs)

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8
Q

Types of skeletons

A

Hydrostatic-made of soft tissue filled w a gel that uses water pressure to support the body

Exoskeleton-provides support and protection for the body and allows movement through muscle contraction

Endoskeleton-internal skeleton that provides support for the body and protects organs

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9
Q

Ganglia vs brain

A

Brain-processes input from entire body,divided into specialized segments, 2 halves
Ganglia-may process sections of body, not segmented, not 2 halves

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10
Q

Roles of the autonomic nervous system
Sympathetic nervous system
Peripheral/central nervous system
Relationship of the above systems?

A

Autonomic nervous system:composed of sympathetic and parasympathetic divisions, plus the medulla oblongata -subdivision of PNS

Sympathetic nervous system:fight or flight response, prepares body for physical activity, maintains homeostasis-a part of the autonomic

Peripheral Nervous system:feeds information into your brain from most of your senses

Central Nervous system:receiving, processing, and responding to sensory information

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11
Q

Compound eye vs single lens eye

A

Compound eye-provides a wide field of view and is good at detecting motion

Single lens eye-narrower field of view but better depth perception and color vision

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12
Q

Binocular vision

A

The ability to see with both eyes to create a single, three dimensional image of the world around you

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13
Q

Adaptions for feeding

A

Teeth, beak, feet, feathers

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14
Q

Gas exchange in water vs air

A

Gas exchange occurs much more efficiently in air compared to water

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15
Q

Major organs and functions

A

Heart-pumps blood through body
Brain-body’s control center
Kidneys-filter blood, remove waste, create urine
Liver-filters blood, produces bile for digestion, and creates protein
Lungs-exchange oxygen and carbon dioxide w the blood

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16
Q

Classes and subdivisions of epithelial tissue

A

Simple:simple squamous, simple cuboidal,simple columnar

Stratified

17
Q

Neurons

A

Sensory, motor, and inter neurons

18
Q

Central Nervous System vs Peripheral Nervous System

A

CNS:brain and spinal cord-integration and interpretation of input

PNS:nerves and ganglia-communication of signal to and from the cns to the rest of the body

19
Q

Connective tissues

A

Cartilage, bone, and blood

20
Q

Muscle tissues

A

Skeletal muscle, cardiac muscle, smooth muscle

21
Q

Antagonistic muscle arrangement

A

Pairs of muscles that work together to move and return body parts to their original position

22
Q

Types of sensors used to detect environment

A

Temperature, humidity, pressure, infrared, air quality, light, smoke

23
Q

Transition of life in water to on land

A

Early aquatic organisms gradually adapting to live on land by developing features

24
Q

Evolution of jaws

A

Vertebrate jaws evolved from gill arches in the vertebrate skeletal system

25
Q

Porifera

A

Sponges
Symmetry-no symmetry
Mode of gas exchange-diffusion
Digestion-intracellular
Type of skeleton-spicules
Body form-ascon,sycon,leucon
Embryonic development-mesohyl
Type of nervous system-no nervous system

26
Q

Cnidaria

A

jelly fish, sea anemones
Symmetry-radial
Mode of gas exchange-diffusion
Digestion-extra cellular
Type of skeleton-hydrostatic
body form-medusae and polyps
Embryonic development-diploblastic
Type of nervous system-simple nervous system and nerve net

27
Q

Platyhelminthes

A

flatworms
Symmetry-bilateral
Mode of gas exchange-diffusion
Digestion-gastrovascular cavity(incomplete)
Type of skeleton-no skeleton
body form-flat
Embryonic development-triploblastic
Type of nervous system-

28
Q

Mollusca

A

Gastropods:snails/slugs
Symmetry-bilateral
Mode of gas exchange-gills in mantle cavity
Digestion-extra cellular and intra cellular
Type of skeleton-exoskeleton
body form-head, foot, visceral hump, mantle
Embryonic development-triploblastic
Type of nervous system-neural ganglion

Cephalopods:octopuses/squid
Symmetry-bilateral
Mode of gas exchange-gills
Digestion-digestive glands-extracellular
Type of skeleton-endoskeleton
body form-head and foot merged, tentacles
Embryonic development-triploblastic
Type of nervous system-most complicated nervous system found in invertebrates

Bivalves:oysters, clams, mussels
Symmetry-bilateral
Mode of gas exchange-gills
Digestion-extracellular and intra cellular
Type of skeleton-eco skeleton
body form-no head, shell, laterally compressed
Embryonic development-triploblastic
Type of nervous system-tetraneural

29
Q

Annelids

A

worms
Symmetry-bilateral
Mode of gas exchange-through their skin
Digestion-extra cellular
Type of skeleton-hydrostatic
body form-segmented, tube w in a tube, body regions
Embryonic development-triploblastic
Type of nervous system-anterior central nervous system,ventral nerve cord

30
Q

Nematoda

A

eels, eelworm, parasites
Symmetry-bilateral
Mode of gas exchange-diffusion
Digestion-extracellular
Type of skeleton-hydrostatic
body form-cylindrical body shape
Embryonic development-triploblastic
Type of nervous system-simple nervous system

31
Q

Arthropoda

A

Chelicerata:spiders
Symmetry-bilateral
Mode of gas exchange-book lungs
Digestion-extra cellular
Type of skeleton-exoskeleton
body form-hard, segmented
Embryonic development-triploblastic
Type of nervous system-ganglion per segment

Crustacea:crabs, lobsters, crayfish
Symmetry-bilateral
Mode of gas exchange-gills
Digestion-extracellular
Type of skeleton-exoskeleton
body form-segmented bodies, jointed appendages
Embryonic development-triploblastic
Type of nervous system-segmented nervous system

Hexapoda:six legged
Symmetry-bilateral
Mode of gas exchange-tracheoles
Digestion-extracellular
Type of skeleton-exoskeleton
body form-head, thorax, abdomen
Embryonic development-triploblastic
Type of nervous system-segmented central nervous system
Reason for diversification-exoskeleton characteristics
Complete metamorphosis-egg, larva, pupa, adult(4 stages)
incomplete metamorphosis-egg, nymph, adult(3 stages)

Myriapoda:centipedes
Symmetry-bilateral
Mode of gas exchange-tracheal system
Digestion-extra cellular
Type of skeleton-exoskeleton
body form-nine pairs of legs
Embryonic development-triploblastic
Type of nervous system-central nervous system

32
Q

Echinodermata

A

starfish
Symmetry-radial
Mode of gas exchange-diffusion
Digestion-intra cellular and extra cellular
Type of skeleton-endoskeleton
body form-spherical shape, divided into 5 parts
Embryonic development-triploblastic
Type of nervous system-central nervous system

33
Q

Chordata

A

Cephalochordata:pikaia
Symmetry-bilateral
Mode of gas exchange-diffusion
Digestion-intra cellular and extra cellular
Type of skeleton-notochord
body form-elongated segmented body
Embryonic development-triploblastic
Type of nervous system-hollow nerve cord

Urochordata:=tunicates
Symmetry-bilateral
Mode of gas exchange-gill
Digestion-intra cellular and extra cellular
Type of skeleton-none
body form-a sack w two siphons
Embryonic development-triploblastic
Type of nervous system-dorsal nervous system

Vertebrata:
*Fishes
Symmetry-bilateral
Mode of gas exchange-gills
Digestion-extracellular
Type of skeleton-endoskeleton
body form-notochord, pharyngeal slits
Embryonic development-triploblastic
Type of nervous system-hollow nerve cord

*Amphibians(3 orders)
Symmetry-bilateral
Mode of gas exchange-skin breathing and lung breathing
Digestion-extra cellular
Type of skeleton-endo skeleton
body form-moist skin, four legs
Embryonic development-triploblastic
Type of nervous system-complex

*Reptiles(4 orders)
Symmetry-bilateral
Mode of gas exchange-lungs
Digestion-extra cellular
Type of skeleton-endoskeleton
body form-scales
Embryonic development-triploblastic
Type of nervous system-central and peripheral nervous system

*Birds
Symmetry-bilateral
Mode of gas exchange-none
Digestion-extracellular
Type of skeleton-hollow bones
body form-bipedal and have wings and feathers
Embryonic development-triploblastic
Type of nervous system-autonomic nervous system
Adaptions for flight-hollow bones, keeled sternum for flight muscle attachment

*Mammals(3 sub classes)
Symmetry-bilateral
Mode of gas exchange-lungs
Digestion-extra cellular
Type of skeleton-endoskeleton
body form-quadrupedal
Embryonic development-triploblastic
Type of nervous system-central and peripheral nervous system