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WorksheetsAQ Science Final 1
Total questions: 150
Worksheet time: 2hrs 53mins
What characteristic distinguishes vertebrates from invertebrates?
Presence of exoskeleton
Possession of a backbone
Ability to fly
Number of legs
How many groups are fish classified into based on their jaw structure?
One
Two
Three
Four
Which group of fish is considered the most primitive among living species?
Cartilaginous Fish
Bony Fish
Jawless Fish
Ray-finned Fish
Which of the following is not included in the group of cartilaginous fish?
Sharks
Rays
Skates
Eels
What material is the skeleton of cartilaginous fish primarily made of?
Bone
Cartilage
Muscle
Tendon
What type of scales do bony fish possess?
Serrated scales
Smooth scales
Cycloid or ctenoid scales
Armored scales
What is the function of the operculum in bony fish?
Protection of the brain
Regulating buoyancy
Covering the gills
Aiding in reproduction
What term describes the equal size of the upper and lower lobes of a bony fish's tail?
Homocercal
Heterocercal
Diphycercal
Isocercal
What is the purpose of a swim bladder in fish?
Digestion
Reproduction
Buoyancy control
Sensory perception
How is a fish's body shape related to its lifestyle?
It affects its coloration
It determines its diet
It influences its swimming abilities
It affects its reproductive behavior
What form of camouflage do open-water fish primarily use?
Mimicry
Disguise
Countershading
Camouflage
How do body and caudal-fin swimmers primarily move?
Up and down
Backwards and forwards
Side-to-side
In spirals
How do median and paired-fin swimmers primarily move?
By undulating their bodies
By flapping their fins
By gliding through the water
By twitching their tails
What sensory organ do fish possess to detect vibrations in the water?
Gustatory receptors
Lateral line
Auditory cortex
Olfactory bulb
What term is used to describe the organized groups formed by many fish?
Colonies
Herds
Schools
Packs
Besides the lateral line, what other sense organ do cartilaginous fish possess in their heads?
Olfactory pits
Ampullae of Lorenzini
Photoreceptors
Auditory ossicles
What term is used to describe land dwelling vertebrates?
Aquatic
Arboreal
Tetrapods
Mammals
From which organ do tetrapods primarily absorb oxygen?
Gills
Skin
Lungs
Bladders
To which group do sea turtles belong?
Mammals
Amphibians
Reptiles
What is the name of the shell enclosing a sea turtle's body?
Exoskeleton
Carapace
Plastron
Test
What characteristic distinguishes sea snakes from land snakes?
Lack of venom
Lack of scales
Lack of mobility
Lack of belly scales
What term describes the temperature regulation mechanism of marine reptiles?
Endothermy
Ectothermy
Thermoregulation
Heterothermy
How far do sea turtles travel to lay their eggs?
Hundreds of meters
A few kilometers
Thousands of miles
Across continents
During which time do sea turtles typically lay their eggs?
Daytime
Dusk
Nighttime
Dawn
What determines the sex of sea turtle eggs?
Depth of nesting
Incubation temperature
Size of the nest
Parental genetics
What reproductive strategy do sea snakes employ?
Viviparity
Oviparity
Ovoviviparity
Parthenogenesis
What feature helps seabirds conserve body heat?
Feathers
Scales
Fur
Blubber
How do seabirds waterproof their feathers?
Rubbing with sand
Rubbing with oil
Licking
Bathing in water
What type of bones do seabirds possess?
Dense bones
Hollow bones
Cartilaginous bones
Spongy bones
What feature of seabird eggs prevents water loss?
Thick shell
Soft shell
Porous shell
Hard shell
How do seabirds differ from land birds in terms of habitat?
They cannot fly
They live in deserts
They live near water
They are nocturnal
What term describes the thermoregulation mechanism of seabirds?
Homeothermy
Homeothermy
Endothermy
Poikilothermy
What phylum do snails, clams, octopuses, and other familiar forms belong to?
Arthropoda
Mollusca
Echinodermata
Annelida
What is the typical composition of the shell in most mollusks?
Silicon
Iron
Calcium carbonate
Chitin
What is the main function of the ventral, muscular foot in mollusks?
Sensory perception
Digestion
Locomotion
Respiration
What is the purpose of the radula in mollusks?
Defense
Sensory perception
Reproduction
Feeding
How would you best describe a typical gastropod?
Dorsal shell with no coiled mass
Coiled mass of vital organs without a dorsal shell
Coiled mass of vital organs enclosed by a dorsal shell
No shell with no coiled mass
What distinguishes nudibranchs or sea slugs among gastropods?
They lack a foot
They have a reduced radula
They have lost their shell
They have two shells instead of one
Which of the following is an example of a bivalve?
Octopus
Mussel
Squid
Cuttlefish
How many parts does the shell of a bivalve typically have?
(a)
What is the umbo in a bivalve shell?
The oldest part of the shell
The innermost layer of the shell
The hinge of the shell
The part with the most recent growth
What are the muscles responsible for opening and closing the valves in bivalves called?
Abductor muscles
Flexor muscles
Extensor muscles
How do burrowing bivalves obtain oxygen?
Through gills
Through siphons
Through the radula
Through the mantle cavity
How do bivalves that don’t burrow attach themselves to surfaces?
By secreting byssal threads
By using their radula
By anchoring with their foot
By inflating their mantle cavity
What group includes octopuses, squids, and cuttlefishes?
Bivalves
Gastropods
Cephalopods
Crustaceans
Which of the following statements about octopi is true?
They have a shell
They lack arms
They have eight arms
They are filter feeders
How is a squid's body characterized?
Coiled
Flattened
Elongated
What distinguishes cuttlefish from squids?
Their lack of tentacles
Their flattened body
Their lack of arms
Their coiled shell
What is the nervous system structure of gastropods and bivalves?
A large brain
A single ganglion
Several sets of ganglia
No brain
Which group has the most complex nervous system among mollusks?
Gastropods
Bivalves
Cephalopods
Nudibranchs
What is the largest group of arthropods in marine environments?
Insects
Arachnids
Crustaceans
Myriapods
What feature distinguishes arthropods?
Soft, flexible bodies
Jointed appendages
Exoskeleton made of chitin
Radial symmetry
How do arthropods grow?
By regenerating lost parts
By metamorphosis
By molting
By cell division
What specialized organ do most crustaceans possess for obtaining oxygen?
Gills
Lungs
Tracheae
Book lungs
What is a common feeding method among small crustaceans?
Filter feeding
Predation
Herbivory
Scavenging
What are the stiff, hair-like bristles on some appendages of crustaceans used for?
Locomotion
feeding
Reproduction
Sensory perception
What is the complexity of the brains in crustaceans?
Highly developed
Relatively simple
Non-existent
Comparable to mammals
How do crustaceans communicate?
Through vocalization
Using chemical signals only
Using body posture and movements
Through telepathy
What is unique about horseshoe crabs among marine invertebrates?
They lack an exoskeleton
They are filter feeders
They have a highly developed brain
They are the only surviving member of their pre-historic group
What is characteristic of lophophorates?
A unique feeding structure
Bilateral symmetry
A segmented body
A hard exoskeleton
What are examples of echinoderms?
Jellyfish
star fish
Snails
Earthworms
What is an endoskeleton?
Which characteristics are common during the development of all chordates?
Multiple nerve cords
A segmented body
Gill slits and a notochord
Jointed appendages
What is the defining characteristic of vertebrates?
Radial symmetry
Presence of a backbone
Lack of a backbone
Sessile behavior
Which phylum includes animals without a backbone?
Porifera
Cnidaria
Vertebrata
Arthropoda
Which type of feeding do sponges primarily engage in?
Carnivory
Herbivory
Suspension feeding
Parasitism
What are the supporting structures found in most sponges?
Muscles
Spicules
Tentacles
Spongin
Which larval stage of sponges is carried by currents until it settles to the bottom?
Polyp
Medusa
Parenchymula larva
Choanocyte
Which symmetry is characteristic of cnidarians?
Bilateral symmetry
Asymmetry
Radial symmetry
Spherical symmetry
What surrounds the mouth of a cnidarian?
Tentacles
Epidermis
Spicules
Spongin
What is the sac-like attached stage with the mouth and tentacles oriented upward in cnidarians called?
Medusa
Parenchymula larva
Polyp
Choanocyte
What lines the gut of a cnidarian?
Epidermis
Choanocytes
Gastrodermis
Spongin
What type of feeders are practically all cnidarians?
Suspension feeders
Herbivores
Detritivores
Carnivores
During digestion in cnidarians, where does extracellular digestion occur?
Within cells
In the gut lumen
Outside the cells
In the tentacles
What is the specialized protein present in the skeleton of many sponges?
Keratin
Collagen
Spongin
Elastin
Which stage of cnidarians is adapted for swimming?
Polyp
Medusa
Parenchymula larva
Choanocyte
What type of cells form a nerve net in cnidarians?
Collar cells
Neurons
Choanocytes
Spicules
What is the function of collar cells in sponges?
Swimming
Digestion
Reproduction
Water Filtration
What is the primary habitat of sponges?
Terrestrial
Freshwater
Marine
Estuarine
Which layer of cells forms the body wall in cnidarians?
Gastrodermis
Mesoglea
Epidermis
Endodermis
Which term describes the behavior of sponges being attached to the bottom or hard surfaces?
Sessile
Motile
Benthic
Pelagic
What is the primary method of food capture in cnidarians?
Predation
Herbivory
Filter feeding
Detritivory
The big opening at the top of the sponge is called...
Osculum
Pore
Flagella
Collar cells
The small openings all over a sponge are...
Collar cells
Flagella
Osculum
Pores
A sponge is a very simple _____________________.
vertibrate
invertebrate
What are coral reefs made of?
Sand and organic matter
Calcium carbonate or limestone
Basalt rock
Coral polyps alone
What do nearly all reef-building corals contain that helps them make their calcium carbonate skeletons?
Chlorophyll
Symbiotic algae called zooxanthellae
Plankton
Calcium deposits
How do corals primarily get their nutrition?
Through capturing small fish
From zooxanthellae via photosynthesis
By absorbing minerals from seawater
From the decay of underwater plant matter
What is another feeding method used by corals besides photosynthesis?
Absorbing nutrients through their skin
Using long coiled tubes called mesenterial filaments
Filtering water through their bodies
Eating small rocks and sand
What does the encrusting coralline algae do for the reef?
Provides food for animals
Prevents the reef from washing away
Causes erosion
Accumulates sediment
Where does nearly all the sediment that helps form the reef come from?
Water currents
Land erosion
Corals and other organisms' shells or skeletons
Artificial reef structures
What term is used to describe the erosion caused by organisms that scrape or bite the reef?
Coralline erosion
Sedimentary erosion
Bioerosion
Aquatic erosion
What is the first sign of heat stress or other kinds of stress in corals?
They change color
They expel their zooxanthellae
They grow faster
They move to cooler waters
What is the upper limit of water temperature that is usually tolerable for corals?
20-25 degrees C
25-30 degrees C
30-35 degrees C
35-40 degrees C
What is an atoll?
A type of coral that can be found in tropical waters
A ring of the reef, often including islands or sand cays, surrounding a central lagoon
A mountain range found in the ocean
A deep trench in the ocean floor
Where can atolls be found?
Close to the coastline
In shallow waters only a few meters deep
Far from land rising up from the depth of thousands of meters
In freshwater lakes
What is the role of zooxanthellae in coral reefs?
They prey on the coral's nitrogen and phosphorus waste products
They provide nutrients to the coral by incorporating them into organic compounds
They compete with the coral for sunlight
They pollute the coral environment with waste products
What happens when fish graze on seaweed in the context of coral reefs?
They increase the temperature of the water
They create new coral formations
They excrete nitrogen, phosphorous, and other nutrients as waste
They reduce the amount of nutrients available to the reef
What must sessile organisms on the reef compete for?
Territory
Food
Space in the light and on a hard surface
Mates
What strategy do some corals use to compete with their neighbors for light?
They grow downward
They grow upward and branch out
They change color
They move to a different location
How do the most aggressive corals grow compared to the less aggressive corals?
Faster and more upright
Slower and more massive
The same as less aggressive corals
They do not grow at all
What is the pre-settlement hypothesis about coral reef communities?
It is based on the competition after the species larvae settle
It is determined by the survival rate of adult corals
It is determined by the availability of different species larvae before they settle
It is based on the number of fish species that can live on the reef
What does the post-settlement hypothesis suggest?
Most species have plenty of settling larvae
Settlement of larvae is random and unpredictable
Coral reefs do not affect the settlement of larvae
Coral reefs can only support a limited number of fish species
What is one of the reasons fishing can reduce fish grazing on coral reefs?
It introduces new species to the reef.
It reduces the fish population through a trophic cascade.
It increases the coral cover on the reef.
It leads to the development of symbiotic relationships.
What is mutualism on the reef primarily between?
Corals and algae.
Corals and crabs, shrimps, and fishes.
Fishes and sharks.
Crabs and shrimps.
What role do crabs, shrimps, and fishes play in the mutualism on coral reefs?
They compete with corals for resources.
They have no significant role.
They help protect the coral from predators.
They contribute to coral bleaching.
Where do fringing reefs develop?
In deep ocean waters
Along the shore
In freshwater lakes
In the open sea
What is the reef flat?
The deepest part of the reef
The narrowest part of the reef
The widest part of the reef
The highest part of the reef
How does the reef slope of a fringing reef generally slope?
Steeply toward the sea
Very gently toward the sea
Vertically down into the sea
Away from the sea
What is the reef crest?
The lowest edge of the reef slope
The innermost edge of the reef
The shallow upper edge of the reef slope
The outermost edge of the reef
What separates barrier reefs from the shore?
A shallow lagoon
A narrow band
A relatively deep lagoon
A sand channel
What is the back-reef slope of a barrier reef?
The steep vertical wall facing the shore
The flat area closest to the shore
The steep or gentle slope as the fore-reef slope
The highest point of the reef
What is characteristic of the fore-reef slope of a barrier reef?
It is always steep and without formations
It is a shallow nearly flat platform
It is the deepest part of the reef
It often has spur-and-groove formations
What is the continental shelf?
The deepest part of the ocean
The open ocean area
The top layer of the ocean
The submerged edge of the continents
What is the richest part of the ocean?
The open ocean area
The deep sea
The continental shelf
The intertidal zone
What are some factors that affect subtidal organisms?
Currents and pollution
Nutrients and shallow water
Salinity and sunlight
Temperature and depth
What is sedimentation?
The formation of rocks
The settling of sediment particles from the water
The movement of water
The growth of coral reefs
What type of communities are often found on the continental shelf?
Communities with rocky bottoms
Communities with soft bottoms
Communities with coral reefs
Communities with seagrasses
What are some reasons for higher diversity in soft-bottom subtidal communities?
Drastic temperature changes
Minimal salinity changes
Lack of stability
Desiccation problems
What is an unvegetated community?
A community with no animals
A community with only seagrasses
A community with no seaweeds or seagrasses
A community with only seaweeds
What type of substrate is preferred by deposit feeders?
Coral reefs
Rocky bottoms
Muddy bottoms
Sandy bottoms
What type of organisms can exclude suspension feeders?
Coral reefs
Deposit feeders
Seagrasses
Seaweeds
What is the type of substrate that affects the distribution of burrowing deposit and suspension feeders?
Sandy bottoms
Coral reefs
Rocky bottoms
Muddy bottoms
What is the main influence on sedimentation?
Temperature
Salinity
Depth
Proximity to land
What is the main factor affecting subtidal organisms in shallow water?
Salinity
Temperature
Waves and currents
Nutrients
What is the main factor affecting subtidal organisms in proximity to land?
Temperature
Salinity
Waves and currents
Nutrients
What is the main characteristic of the subtidal zone?
Always submerged
Never exposed at low tide
Exposed at low tide
Exposed at high tide
What is the most common type of sediment on the continental shelf?
Cosmogenous
Lithogenous
Biogenous
Hydrogenous
What is the characteristic division of the rocky intertidal community into distinct bands or zones at specific heights called?
Horizontal zoning
Vertical zonation
Intertidal stratification
Wave banding
What term is used to describe the pattern of banding in the rocky intertidal community?
Intertidal patterning
Vertical zonation
Wave banding
Horizontal zoning
What primarily causes the formation of distinct bands or zones in the rocky intertidal community?
Biological factors only
Chemical factors only
Physical and chemical factors
Geological factors
How are the zones in the rocky intertidal community categorized?
Upper, middle, and lower
Coastal, submerged, and exposed
High, medium, and low
Wave, tide, and current
Why is the upper zone of the rocky intertidal community often called the splash zone?
It is primarily wetted by the splash of waves.
It has a high concentration of splashing animals.
It is a zone with frequent rainfall.
It is where waves crash the hardest.
What characterizes the middle zone in the rocky intertidal community?
Always submerged
Regularly submerged and exposed by tides
Dry and arid conditions
Covered in algae
What do we call predators whose effects on their communities are proportionately much greater than their abundance?
Apex predators
Primary predators
Keystone predators
Dominant predators
How is the lower intertidal zone of the rocky community in terms of its immersion?
Exposed most of the time
Immersed most of the time
Alternating between immersion and exposure
What type of bottom, composed of sediment instead of rock, is considered in the rocky intertidal community?
Hard-bottom
Solid-bottom
Soft-bottom
Sediment-bottom
Why do soft bottoms tend to be unstable in the rocky intertidal community?
Lack of organisms
Lack of sediment
Shifting in response to waves, tides, and currents
High levels of erosion
What is the term for animals that burrow in the substrate of the rocky intertidal community?
Epifauna
Meiofauna
Infauna
Suprafauna
What do geologists use the terms salt, silt, and clay to specify in the rocky intertidal community?
(a)
How are most sediments in the rocky intertidal community described in terms of particle sizes?
By the largest particle size
By the smallest particle size
By the most common grain size
By the rarest grain size
Why do very coarse sand beaches have little animal life in the rocky intertidal community?
How does the grain size of sand affect the drying rate in the rocky intertidal community?
Fine sand dries faster
Coarse sand dries faster
Grain size has no effect
Sand drying is unrelated to grain size
What adaptation helps organisms in the rocky intertidal community extract as much oxygen as possible?
Increased burrowing
Special hemoglobins
Dependency on photosynthesis
Migration to deeper waters
What term is used for animals that live in the spaces between the grains of intertidal sediments?
Macrofauna
Meiofauna
Epifauna
Microfauna
Why does the higher part of the beach in the rocky intertidal community dry out faster?
Presence of more predators
Sloped beach structure
Lack of vegetation
Lower temperature
What organisms are commonly found in the upper intertidal beach, given its faster drying rate?
Crabs and snails
Meiofauna and beach hoppers
Starfish and sea anemones
Amphipods and isopods
How often is the lower intertidal zone immersed?
Rarely
Occasionally
Most of the time
Never
What is the term for the division of the rocky intertidal community into the upper, middle, and lower zones?
Horizontal zoning
Vertical zonation
Intertidal stratification
Wave banding
This term means being out of the water; exposed to air
immersion
emersion
substrate
dessicate
