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Marine Invertebrates Flashcards | StudBud
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Marine Invertebrates
Marine Invertebrates
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A review of invertebrates, poriferans, cnidarians, molluscs, annelids, arthropods, and echinoderms.
Flashcards
32 cards
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Practice quiz
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Host live
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Questions
32
Answers
1
Which of the following is not an example of an invertebrate?
Snail
Perch fish
Spider
Sea anemone
2
What are the ecological roles of molluscs?
Filter feeders
Shells provide habitat
They are parasites
They are soley predators
3
What are the two types of invertebrates?
Smaller and bigger invertebrates
Simple and complex invertebrates
Lower and higher invertebrates
Crazy and crazier invertebrates
4
What are the ecological roles of cnidarians?
Form 3-D structures
Prey
Buffers from storm and wave action
Predators
5
What protects the soft body of molluscs?
The mantle
The head-foot
The shell
The radula
6
What is the key characteristic of echinoderms?
Spiny skins
Spiny feet
Tube feet
Flat body
7
What are some ecological roles of arthropods?
Prey only
Food source
Nutrient cycling
Fouling
8
What cells on the inside of sponges help capture food and nutrients?
Spicules
Archaocytes
Shirt cells
Collar cells
9
What are the two main parts of a mollusc?
The shell and the animal
The head-foot and the shell
The head-foot and visceral mass
The head and the foot
10
What are setae?
Worm eggs
Bristles for locomotion, digging, anchorage, and protection
A defense mechanism
Pincers for locomotion, digging, anchorage, and protection
11
What type of body plan is this?
Radial
Bilateral
Asymmetrical
12
What are some characteristics of sponges?
Built around a system of water canals
Mobile
Complex
Carnivores
13
Which is not one of the 4 characteristics of animals?
They are prokaryotic
They are heterotrophs
They are multicellular
Most can actively move
14
Why is molting important?
To indicate environmental and hormonal changes
To prepare for reproduction
To help with buoyancy
To allow the organism to grow
15
What are nematocytes?
Jellyfish offspring
Tentacles
The internal organs
Spear-like stinging cells
16
What is the ventral side of this organism?
The head of the dog
The tail of the dog
The back of the dog
The stomach of the dog
17
What are the ecological roles of worms?
Burrows provide habitats
Predators and prey
Parasitic relationships
Burrowing aids in nutrient recycling
18
What is the key characteristic that all cnidarians have?
Stinging cells
They are all prey
They have 3 body plans
Collar cells
19
What are some ecological roles of echinoderms?
Provides habitat for other organisms
Predators
Food for humans
Parasites
20
Which of the following is not an example of an echinoderm?
Sea cucumbers
Sea lilies
Anemones
Sea stars
21
What are some of the key characteristics of arthropods?
Jointed appendages
Highly developed nervous system
Exoskeleton
Soft body
22
What is the main way worms reproduce?
Asexually, a piece breaks off and a new worm grows
Sexually, through swarming
Asexually, they split in half and regenerate 2 new worms
Sexually, they mate for life
23
What are some of the ecological roles of sponges?
Medical use
Compete for space
Commercial use
Recycle calcium
24
What is the most successful group in the animal kingdom?
Arthropods
Annelids
Molluscs
Echinoderms
25
What is a key characteristic of molluscs?
Predator defense mechanisms
Having a shell
Being unsuccessful
Having a soft body
26
How are annelids segmented?
They aren't segmented
Internally and externally
Externally
Internally
27
What are the two main groups of marine arthropods?
Chelicerates and Melicerates
Chelicerates and Mandibulates
Candibulates and Mandibulates
Chicklates and Mandibulates
28
What are some defensive behaviors of echinoderms?
Expeling its stomach to consume prey
Tubules
Venom in spines
Loss of limbs
29
What is something many marine arthropods have for reproduction?
Asexual reproduction
Hermaphroditic changes
Brood chambers
External fertilization
30
Invertebrates make up what percentage of all animal species?
~50%
~75%
~5%
~97%
31
What do jellyfish lack?
A respiratory system
A nervous system
A skeleton
A circulatory system
32
What cells on the inside of sponges are similar to human stem cells?
Collar cells
Shirt cells
Archaocytes
Spicules
