Scl #2 Ocean Beach Hw, Terms Table And Ticket Flash Quiz

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Scl #2 Ocean Beach Hw, Terms Table And Ticket Flash Quiz - Quiz

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Questions and Answers
  • 1. 

    The kind of sediment deposited in shoreline habitats depends on:

    • A.

      Estuary deposits

    • B.

      Tidal amplitude

    • C.

      Water turbulence

    • D.

      Coastal plain migration

    Correct Answer
    C. Water turbulence
    Explanation
    Water turbulence refers to the movement and agitation of water in a shoreline habitat. It is responsible for the transportation and deposition of sediment in these habitats. When water is turbulent, it has a higher velocity and is able to carry and transport larger particles of sediment. This results in the deposition of coarser sediments, such as sand and gravel, in shoreline habitats. On the other hand, when water is calm and less turbulent, it is only able to transport and deposit finer sediments, such as silt and clay. Therefore, the type of sediment deposited in shoreline habitats is influenced by the level of water turbulence.

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  • 2. 

    What is a berm and where is it found?

    • A.

      The back dune end of the supratidal zone

    • B.

      The movement of sand offshore during a storm

    • C.

      The supratidal ledge of sand at the high tide line

    • D.

      The edge of the swash (shoreface where waves break) zone

    Correct Answer
    C. The supratidal ledge of sand at the high tide line
    Explanation
    A berm is a supratidal ledge of sand that is found at the high tide line. It is a raised area of sand that acts as a natural barrier between the ocean and the land. The berm is formed by the deposition of sand by waves and tides, and it helps to protect the land from erosion caused by high tides and storm surges. The berm is an important feature of coastal ecosystems and provides habitat for a variety of plants and animals.

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  • 3. 

    What is the average salinity of the ocean?

    • A.

      35 ppt

    • B.

      55 ppt

    • C.

      15 ppt

    • D.

      25 ppt

    Correct Answer
    A. 35 ppt
    Explanation
    The average salinity of the ocean is 35 ppt. Salinity refers to the concentration of salt in water, and ppt stands for parts per thousand. This means that for every 1000 parts of water, there are 35 parts of salt. Salinity can vary in different parts of the ocean due to factors such as evaporation, precipitation, and freshwater inflow from rivers. However, the average salinity across the entire ocean is approximately 35 ppt.

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  • 4. 

    What kind of sediment settle in the sound?

    • A.

      Fine silt

    • B.

      Loam

    • C.

      Coarse sand

    • D.

      Clay

    Correct Answer
    A. Fine silt
    Explanation
    Fine silt is the kind of sediment that settles in the sound. Silt particles are smaller than sand but larger than clay particles. They have a smooth texture and can be easily transported by water. In a sound, which is a body of water partially enclosed by land, the water movement is relatively calm, allowing fine silt to settle and accumulate over time. This sediment is typically deposited in layers and can contribute to the formation of mudflats or marshes in the sound ecosystem.

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  • 5. 

    What kind of sediments settle on the ocean beach?

    • A.

      Silt

    • B.

      Gravel

    • C.

      Coarse sand

    • D.

      Clay

    Correct Answer
    C. Coarse sand
    Explanation
    Coarse sand is the correct answer because sediments that settle on the ocean beach are typically larger in size and coarser in texture. Coarse sand particles are heavier and are often deposited closer to the shore due to the action of waves and currents. Silt and clay particles, on the other hand, are finer and lighter, and they tend to be carried further offshore. Gravel is also a possibility, but it is less common on ocean beaches compared to coarse sand.

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  • 6. 

    Ocean beach habitats have three distinct zones:

    • A.

      The subtidal zone of crashing breakers with swirling sand and shallow water; the intertidal zone, alternately covered and exposed by tidal waters; and the dry, sandy supratidal zone extending to the base of the sand dunes.

    • B.

      The ocean zone of crashing breakers with swirling sand and shallow water; the salt marsh zone, alternately covered and exposed by tidal waters; and the dry, sandy sand dune zone extending to the base of the sand dunes.

    • C.

      The shoreface zone of crashing breakers with swirling sand and shallow water; the intertidal zone, alternately covered and exposed by tidal waters; and the dry, sandy subtidal zone extending to the base of the sand dunes.

    • D.

      The supratidal zone of crashing breakers with swirling sand and shallow water; the intertidal zone, alternately covered and exposed by tidal waters; and the dry, sandy subtidal zone extending to the base of the sand dunes.

    Correct Answer
    A. The subtidal zone of crashing breakers with swirling sand and shallow water; the intertidal zone, alternately covered and exposed by tidal waters; and the dry, sandy supratidal zone extending to the base of the sand dunes.
    Explanation
    The correct answer is the subtidal zone of crashing breakers with swirling sand and shallow water; the intertidal zone, alternately covered and exposed by tidal waters; and the dry, sandy supratidal zone extending to the base of the sand dunes. This answer accurately describes the three distinct zones found in ocean beach habitats. The subtidal zone refers to the area below the low tide mark, where the waves crash and there is swirling sand and shallow water. The intertidal zone is the area that is alternately covered and exposed by tidal waters. And the supratidal zone is the dry, sandy area that extends to the base of the sand dunes.

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  • 7. 

    Oxygen is plentiful in the ocean beach habitat because of which three factors:

    • A.

      Wind coming off the ocean, the presence of water coming in with the tides and in the space between the sand sediment.

    • B.

      The presence of water coming in with the tides, salt spray and plants.

    • C.

      The wind coming off the ocean, salt spray and plants.

    • D.

      The wind coming off the ocean, the presence of water coming in with the tides and plants.

    Correct Answer
    A. Wind coming off the ocean, the presence of water coming in with the tides and in the space between the sand sediment.
    Explanation
    The correct answer is "wind coming off the ocean, the presence of water coming in with the tides and in the space between the sand sediment." This is because wind coming off the ocean helps to mix the oxygen into the water, while the presence of water coming in with the tides brings in fresh oxygen-rich water. Additionally, the space between the sand sediment allows for oxygen to dissolve and be available for organisms in the habitat.

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  • 8. 

    Debris and detritus are deposited ___________________

    • A.

      At the high tide line.

    • B.

      At the shoreline.

    • C.

      Along the shoreface.

    • D.

      In the intertidal zone.

    Correct Answer
    A. At the high tide line.
    Explanation
    Debris and detritus are deposited at the high tide line because this is the area where the highest point of the tide reaches during high tide. As the tide recedes, it leaves behind the debris and detritus it carried with it, resulting in their accumulation at the high tide line. This area is typically marked by a distinct line of seaweed, shells, and other materials left behind by the tide.

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  • 9. 

    Phytoplankton are_______________________

    • A.

      Free floating microscopic plants that are the basis of the marine food chain.

    • B.

      Free floating microscopic animals that are the basis of the marine food chain.

    • C.

      Free floating microscopic scavengers that support the marine food chain.

    • D.

      Diatoms that cause red tide and are toxic to the marine food chain.

    Correct Answer
    A. Free floating microscopic plants that are the basis of the marine food chain.
    Explanation
    Phytoplankton are free floating microscopic plants that are the basis of the marine food chain. They are responsible for producing a significant amount of the Earth's oxygen and are a vital food source for many marine organisms. Phytoplankton convert sunlight and nutrients into organic matter through photosynthesis, serving as primary producers in the marine ecosystem. They form the foundation of the food chain, as they are consumed by zooplankton, which are then eaten by larger organisms, creating a complex web of energy transfer and nutrient cycling in the ocean.

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  • 10. 

    Intertidal beach life is nourished largely by _______________ brought in by ____________.

    • A.

      Plankton, tides.

    • B.

      Zooplankton, waves.

    • C.

      Phytoplankton, waves.

    • D.

      Plankton, waves.

    Correct Answer
    A. Plankton, tides.
    Explanation
    Intertidal beach life is nourished largely by plankton, which is brought in by tides. Plankton refers to the tiny organisms that float in the water, including both phytoplankton (plant-like organisms) and zooplankton (animal-like organisms). These organisms form the base of the food chain in the intertidal zone, providing nutrients for larger organisms. Tides, the rise and fall of the ocean's water levels, bring in the plankton from deeper waters, allowing the intertidal beach life to thrive.

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  • 11. 

    Most supratidal animals are ____________ that feed on debris and detritus along the strand line.

    • A.

      Scavengers

    • B.

      Decomposers

    • C.

      Producers

    • D.

      Herbivores

    Correct Answer
    A. Scavengers
    Explanation
    Supratidal animals are those that live in the area above the high tide line. Since they feed on debris and detritus along the strand line, they are likely to be scavengers. Scavengers are organisms that consume dead or decaying organic matter, which aligns with the behavior described in the question. Decomposers break down organic matter, producers create their own food through photosynthesis, and herbivores consume plants. None of these options accurately describe the feeding habits of supratidal animals.

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  • 12. 

    Bottom dwellers like sand dollars, urchins and starfish are unable to swim and so they move along the sandy substrate by:

    • A.

      Hundreds of minute tubelike "feet".

    • B.

      Jet propulsion, like scallops, taking water in through their gills and jetting it out to move.

    • C.

      By releasing a whip-like tail that whips back and forth to propel them.

    • D.

      They do not move, like oysters they are immobile.

    Correct Answer
    A. Hundreds of minute tubelike "feet".
    Explanation
    Bottom dwellers like sand dollars, urchins, and starfish are unable to swim, so they rely on hundreds of minute tubelike "feet" to move along the sandy substrate. These feet, known as tube feet, are small, flexible structures located on the underside of their bodies. By extending and contracting these tube feet, the organisms can create a crawling motion, allowing them to move across the sand. This method of locomotion is characteristic of echinoderms, which include sand dollars, urchins, and starfish.

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  • 13. 

    What is a gastropod?

    • A.

      A gastropod is a mollusk that has one shell. It is a marine snail.

    • B.

      A gastropod is a mollusk that has two shells it is a bivalve or pelecypod with a strong muscular foot.

    • C.

      A gastropod is a mollusk that attaches itself to hard substrate to survive.

    • D.

      A gastropod is a mollusk that has an internal shell like a squid.

    Correct Answer
    A. A gastropod is a mollusk that has one shell. It is a marine snail.
    Explanation
    A gastropod is a type of mollusk that possesses a single shell, distinguishing it from other mollusks such as bivalves or pelecypods that have two shells. The fact that it is described as a marine snail further emphasizes its characteristics, as snails are commonly associated with gastropods due to their similar shell structure and habitat.

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  • 14. 

    Identify a key adaptation of the mole crab and coquina clam for living in the in the ocean beach intertidal zone:

    • A.

      Both organisms burrow rapidly into the sand. The coquina clam burrows as a wave recedes. The mole card burrows backward each time a wave advances.

    • B.

      Both organisms ride the surf to avoid the receding or advancing waves.

    • C.

      Both organisms hibernate to avoid the receding or advancing waves.

    • D.

      Though born on the ocean side of the barrier island, both organisms move to the sound to avoid the receding or advancing waves.

    Correct Answer
    A. Both organisms burrow rapidly into the sand. The coquina clam burrows as a wave recedes. The mole card burrows backward each time a wave advances.
    Explanation
    Both the mole crab and coquina clam have adapted to living in the intertidal zone by burrowing rapidly into the sand. The coquina clam burrows as a wave recedes, while the mole crab burrows backward each time a wave advances. This adaptation allows them to avoid being washed away by the waves and provides them with protection from predators. By burrowing into the sand, they are able to stay in the intertidal zone and continue to feed on the nutrients available in the area.

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  • 15. 

    Strong winds effect the ocean beach habitat. Strong winds (of at least 10 mph) cause fine sand particles to bounce and mound into piles this is called:

    • A.

      Saltation.

    • B.

      Transpiration.

    • C.

      Ocean waves.

    • D.

      Mineralization.

    Correct Answer
    A. Saltation.
    Explanation
    Strong winds (of at least 10 mph) can cause fine sand particles to bounce and mound into piles. This process is known as saltation.

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  • 16. 

    Coarse sand settles in the intertidal zone because:

    • A.

      Turbulent ocean waves can carry coarse sediment and deposit it on the shoreline.

    • B.

      Turbulent ocean tides can carry coarse sediment and deposit it on the shoreline.

    • C.

      Gentle sound waves deposit coarse sediment in the ebb tidal deltas.

    • D.

      The longshore current carries coarse sediment to the shore.

    Correct Answer
    A. Turbulent ocean waves can carry coarse sediment and deposit it on the shoreline.
    Explanation
    Coarse sand settles in the intertidal zone because turbulent ocean waves can carry coarse sediment and deposit it on the shoreline. Turbulent waves have a high energy level and can pick up larger particles like coarse sand. As these waves crash onto the shoreline, they lose their energy and drop the sediment they were carrying, resulting in the deposition of coarse sand in the intertidal zone.

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  • 17. 

    Tides- the daily cycle of 2 high and 2 low tidal flow of water onto and into a low lying shore area caused by the:

    • A.

      Moon and sun’s gravitational pull on Earth.

    • B.

      Moon's gravitational pull on Earth.

    • C.

      Sun’s gravitational pull on Earth.

    • D.

      The oceans wave energy.

    Correct Answer
    A. Moon and sun’s gravitational pull on Earth.
    Explanation
    The tides are caused by the gravitational pull of both the moon and the sun on Earth. The moon's gravitational pull is stronger than the sun's, which is why it has a greater influence on the tides. As the moon orbits around the Earth, it creates a bulge of water on the side of the Earth facing the moon, causing a high tide. On the opposite side of the Earth, there is also a high tide due to the centrifugal force caused by the Earth and moon's rotation around their common center of mass. The sun's gravitational pull also contributes to the tides, although its effect is less significant compared to the moon.

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  • 18. 

    Ghost crabs are unique organisms that live in deep tunnels with front and back entrances. They rarely leave their burrow during the day. Though they live in the dunes, the female deposits eggs in the ocean and the young develop there. How do ghost crabs breathe?

    • A.

      Ghost crabs breathe through gills which must be wet with ocean water daily.

    • B.

      Once ghost crabs come on land, they breathe air.

    • C.

      Ghost crabs breathe both air and water because they were born in the ocean and as adults live in the supratidal zone.

    • D.

      Ghost crabs breathe air only. As young in the ocean they came to the surface for air and continued to do so when moving to the supratidal zone.

    Correct Answer
    A. Ghost crabs breathe through gills which must be wet with ocean water daily.
    Explanation
    Ghost crabs have gills and they need to keep them wet with ocean water in order to breathe. This is because gills extract oxygen from water and allow the crab to breathe. Once the crabs come on land, they switch to breathing air. This is why their burrows have both front and back entrances, so they can easily access both the ocean and the air.

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  • 19. 

    Which gastropod has a radula? What is a radula used for?

    • A.

      An olive shell has a radula. It is used to drill into a pelecypod (bivalve) which is its prey.

    • B.

      An auger shell has a radula. It is used to drill into a pelecypod (bivalve) which is its prey.

    • C.

      A whelk has a radula. It is used to drill into a pelecypod (bivalve) which is its prey.

    • D.

      A clam has a radula. It is used to drill into another pelecypod (bivalve) which is its prey.

    Correct Answer
    A. An olive shell has a radula. It is used to drill into a pelecypod (bivalve) which is its prey.
    Explanation
    The correct answer is that an olive shell has a radula, which is used to drill into a pelecypod (bivalve) that serves as its prey. The radula is a specialized feeding organ found in most mollusks, including gastropods. It is a ribbon-like structure with rows of tiny teeth that are used for scraping, cutting, or drilling through food sources. In the case of the olive shell, its radula is specifically adapted for drilling into the hard shell of a pelecypod, allowing it to access the soft tissues inside and consume its prey.

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  • 20. 

    The action of ____________________ sweeps larger shell particles and sand across the substrate surface, sometimes causing abrasions or burying plants and animals.

    • A.

      Waves

    • B.

      Tides

    • C.

      Longshore current

    • D.

      Winds

    Correct Answer
    A. Waves
    Explanation
    Waves have the ability to move larger shell particles and sand across the substrate surface. This movement can sometimes lead to abrasions or burying of plants and animals. Waves are formed due to the transfer of energy from the wind to the water surface, causing it to move in a circular motion. As the waves approach the shore, their energy is concentrated, leading to increased erosion and sediment transport. Therefore, waves are responsible for the action described in the question.

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  • 21. 

    What does the word "phytoplankton" mean?

    • A.

      Plant wanderer

    • B.

      Animal wanderer

    • C.

      Light wanderer

    • D.

      Algae wanderer

    Correct Answer
    A. Plant wanderer
    Explanation
    The word "phytoplankton" is derived from the Greek words "phyto" meaning plant and "plankton" meaning wanderer. Therefore, the correct answer is "Plant wanderer" as it accurately describes phytoplankton, which are microscopic, photosynthetic organisms that drift in bodies of water.

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  • 22. 

    What is a pelecypod?

    • A.

      A bivalve: two shelled organism

    • B.

      A univalve: a single shelled organism, like a sea snail

    • C.

      A arthropod: having segmented jointed appendages

    • D.

      A cephalopod mollusk

    Correct Answer
    A. A bivalve: two shelled organism
    Explanation
    A pelecypod is a type of organism that has two shells, also known as a bivalve. Bivalves are characterized by their hinged shells, which can open and close. Examples of bivalves include clams, oysters, and mussels. These organisms are filter feeders, meaning they obtain food by filtering water and extracting nutrients from it. The two shells provide protection and support for the soft body of the organism.

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  • 23. 

    What prevents organisms that need to attach from grabbing and getting a hold at the ocean beach subtidal and intertidal habitat?

    • A.

      Shifting sands

    • B.

      Longshore current

    • C.

      Rip currents

    • D.

      Tide changes

    Correct Answer
    A. Shifting sands
    Explanation
    Shifting sands prevent organisms from grabbing and getting a hold at the ocean beach subtidal and intertidal habitat. This is because the constant movement of the sand makes it difficult for organisms to anchor themselves and maintain a stable position. As the sand shifts and moves with the tide and currents, it can dislodge and wash away any attachments that organisms may have made. This lack of stability makes it challenging for organisms that rely on attachment to survive in this habitat.

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  • 24. 

    Why do supra tidal organisms dig burrows in the sand?

    • A.

      Supra tidal organisms burrow to avoid extreme temperatures and dry conditions on the surface.

    • B.

      Supra tidal organisms burrow to avoid predators

    • C.

      Supra tidal organisms burrow to eat bacteria that are in the sand below the surface

    • D.

      Supra tidal organisms burrow to prey on other burrowing organisms

    Correct Answer
    A. Supra tidal organisms burrow to avoid extreme temperatures and dry conditions on the surface.
    Explanation
    Supra tidal organisms dig burrows in the sand to avoid extreme temperatures and dry conditions on the surface. The burrows provide a more stable and cooler environment, protecting them from the heat and dehydration. By staying underground, they can regulate their body temperature and retain moisture, allowing them to survive in harsh conditions. This behavior helps them adapt and thrive in the supra tidal zone, where they would otherwise be exposed to unfavorable environmental conditions.

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