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Science > Simple Invertebrates > Flashcards

Simple Invertebrates Flashcards

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Biology 101 flashcards
1
Q 
Which is an invertebrate?
A. Grasshopper 
B. Cow
C. Man
D. Whale
A

A. Grasshopper

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2
Q

Some invertebrates eat food through their mouths. Others absorb food through their what?

A

Tissue

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3
Q

Invertebrates have three basic body plans, or types of what?

A

Symmetry

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4
Q

What are the three basic body plans for invertebrates?

A

Bilateral Symmetry (2 halves)

Radial Symmetry (Spokes from center)

Asymmetrical (none)

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5
Q

List 2 functions of neurons

A

Sense environment

Carry messages around body to control an animals actions

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6
Q

Ganglion

A

A concentrated mass of nerve cells

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7
Q

Gut

A

A pouch where food is digested

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8
Q

Coelem

A

The body cavity that surrounds the gut

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9
Q

Are sponges simple or complicated?

A

Simple

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10
Q

Why are sponges considered animals not plants?

A

They can’t make their own food (heterotrophs)

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11
Q

Describe the special way sponges bring oxygen and food into their bodies

A

A sponge sweeps water into its body through pores

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12
Q

If a part of the sponge breaks off the sponge can what?

A

Regenerate

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13
Q

Do sponges reproduce sexually or asexually?

A

Both

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14
Q

What traits do all cnidarians have in common?

A

Can regenerate

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15
Q

What are the 2 body forms of cnidarians?

A

Medusa and Polyp

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16
Q

What is the difference between a medusa and a polyp?

A

Medusa - swim freely

Polyp - attach to surface

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17
Q

Polyp or Medusa

Jellyfish

A

Medusa

18
Q

Polyp or Medusa

Hydrozoan

A

Polyp

19
Q

Polyp or Medusa

Sea Anemone

A

Polyp

20
Q

What polyps build massive underwater reefs?

A

Corals

21
Q

What distinguishes flatworms from other worms?

A

They are the simplest worms

22
Q

All flatworms have what?

A

Bilateral symmetry

23
Q

What are the bumps on the side of a a flatworms head?

A

Sensory lobes

24
Q

What is a roundworm’s body shaped like?

A

Piece of spaghetti

25
Q

How can round worms be helpful?

A

Break down dead tissues of plants which make soil

26
Q

What worms do you see after a rainfall?

A

Earthworms

27
Q

Use tentacles to grab food
A. Snails and Slugs
B. Octopuses and Squids
C. Clams and Oysters

A

B

28
Q

Use grills to filter food
A. Snails and Slugs
B. Octopuses and Squids
C. Clams and Oysters

A

C

29
Q

Use a radula to scrape food
A. Snails and Slugs
B. Octopuses and Squids
C. Clams and Oysters

A

A

30
Q

Mollusk have a complex (blank) to control breathing, movement, and digestion

A

Ganglia

31
Q

Octopuses and squids have the most advanced (blank) of all invertebrates

A

Nervous system

32
Q

Describe an open circulatory system

A

Fluid isn’t completely contained in the vessels

33
Q

Describe a closed circulatory system

A

A heart circulates blood through a network of vessels that form a closed loop

34
Q

Mantle

A

A layer of tissue that covers the visceral mass

35
Q

Shell

A

Protects some mollusks from predators

36
Q

Foot

A

Helps the animal move

37
Q

Visceral mass

A

Gills, guts, and other organs

38
Q

Annelid worms are often called what?

A

Segmented worms

39
Q

What are 2 ways that annelid worms are more complex than the other worms?

A

Closed circulatory system

Complex nervous system

40
Q

How do earth worms help gardeners?

A

They eat dead plant and animal matter

They eat material in the soil

Science (16 decks)

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