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Biology > Arthropods > Flashcards

Arthropods Flashcards

1
Q

Arthropods

A

Segmented invertebrates with jointed appendages

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2
Q

Jointed appendages

A

Body extension such as leg or antenna

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3
Q

What is the function of the exoskeleton in arthropods

A

Provides support and protection, made up of protein bound to chitin

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4
Q

What is Molting?

A

The way in which arthropods grow, by shedding their exoskeleton

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5
Q

Crustacea

A

2 pairs of antennae, chewing mouthparts. Lobsters cray fish and shrimp

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6
Q

Uniramia

A

One pair of antenna. Insects, millipeds and centipede

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7
Q

Chelicerata

A

Have a pincer like mouthparts and no antennae. Spiders and scorpions

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8
Q

Cephalothorax

A

The fused head and chest region

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9
Q

What is the carapace

A

A hard shell covering the cephalothorax

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10
Q

Abdomen

A

The long narrow tail region

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11
Q

Antennae

A

2 pairs used for balance taste and touch

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12
Q

Mandibles

A

Jaw like, chew and crush food

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13
Q

Jaw feet

A

Called maxillipeds, these 3 pairs of jaw feet hold and taste food

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14
Q

Pinching claws

A

Called chelipad, used for catching food and for defence

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15
Q

Walking legs

A

4 pairs on the last 4 segments used for locomotion

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16
Q

Swimmerets

A

Used for locomotion and transfer of sperm (in males)

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17
Q

Feathery gills

A

Attached to the walking legs used for respiration

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18
Q

Gill bailers

A

Move water across the gills so respiration can continue

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19
Q

Chitonous teeth

A

Present on the stomach wall these teeth grind food particles

20
Q

Digestive gland

A

Where the small particles are sent from the stomach

21
Q

Green gland

A

Regulates the amount of salt and liquid in the blood

22
Q

What type of circulatory system?

A

Crayfish have an open circulatory system

23
Q

Compound eye

A

Composed of hundreds or thousands closely packed lenses used for detecting predator and prey

24
Q

Trachea

A

Present in insects. Air enters through small holes in the exoskeleton

25
Q

Esophagus

A

Passes food from the mouthparts to the corp

26
Q

Corp

A

Temporary storage for food

27
Q

Gizzard

A

Grinds up food

28
Q

Midgut

A

Absorbed nutrients passes undigested nutrients into the intestine

29
Q

Malpighian tubules

A

Filter waste from body fluid. Get rid of metabolic waste

30
Q

Tympanum

A

Insects use for hearing

31
Q

Complete metamorphosis

A

The baby looks nothing like the adult when it is born

32
Q

Incomplete metamorphosis

A

Looks like a carbon copy of the adult (smaller)

33
Q

Echinodermata

A

Marine invertebrate with spiny skin, radial symmetry, water vascular system

-sea star

34
Q

Water vascular system

A

Network of fluid filled tubes used for transport

35
Q

Tube feet

A

Hallow thin walled structures that have a suction cup at the end

36
Q

Ampulla

A

Located on the top of each tube foot helps force water through the water vascular system

37
Q

Lower stomach

A

Sea star pushes the lower stomach through its mouth and onto prey. The stomach is then pulled in to the body to digest

38
Q

How do sea stars reproduce

A

They can either reproduce sexually or asexually. They have separate sexes

39
Q

Nerve ring

A

Coordinates movement by receiving signals from receptor cells

40
Q

What gives echinoderm their spiny skin

A

Endoskeleton of calcium supports the echinoderm

41
Q

Asteroidea

A

Sea stars, have 5 or more arms

42
Q

Ophiuroidea

A

Brittle and basket star, move quickly compact size.

43
Q

Crinoidea

A

Sea lilies and feather stars. Sessile traits while they are Los able to break away

44
Q

Echinoida

A

Sea urchin and sand dollar, shaped like spheres or discs

45
Q

Holothuroidea

A

Sea cucumber, no arms bilaterally segmented

46
Q

What are the three subphyla of chordates

A

Lancelets, tunicates and vertebrates

Biology (8 decks)

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