#1
Which of the following is a primary producer in marine ecosystems?
Seagrass
ExplanationSeagrass is a primary producer due to its ability to perform photosynthesis.
#2
Which marine adaptation helps fish control their buoyancy and depth in the water?
Swim bladder
ExplanationSwim bladder helps fish control buoyancy and maintain their depth in the water column.
#3
In marine ecology, what is the term for the study of the interactions between organisms and their environment?
Ecology
ExplanationEcology is the study of the interactions between organisms and their environment in marine ecology.
#4
What is the primary source of energy for most marine ecosystems?
Solar energy
ExplanationSolar energy is the primary source of energy for most marine ecosystems, driving photosynthesis.
#5
Which adaptation helps marine birds reduce drag and enhance their streamlined swimming ability?
Webbed feet
ExplanationWebbed feet help marine birds reduce drag and enhance swimming ability in water.
#6
What is the term for the zone in the ocean where sunlight cannot penetrate, and photosynthesis cannot occur?
Hadopelagic zone
ExplanationHadopelagic zone is the deepest part of the ocean where no sunlight reaches.
#7
Which adaptation allows marine mammals to dive and stay submerged for extended periods?
Blubber for buoyancy and insulation
ExplanationBlubber provides buoyancy and insulation for marine mammals during dives.
#8
What is the term for the phenomenon where warm surface water moves towards the poles, and cold, nutrient-rich water rises to the surface?
Upwelling
ExplanationUpwelling is the process where cold, nutrient-rich water rises to the surface, often occurring near coastlines.
#9
Which marine organism is known for its ability to produce light through a chemical reaction?
Anglerfish
ExplanationAnglerfish can produce light through bioluminescence, attracting prey.
#10
Which marine organism is known for its ability to filter and pump large volumes of water to extract planktonic food particles?
Bivalve mollusk
ExplanationBivalve mollusks filter and pump water to extract planktonic food particles for consumption.
#11
What is the process by which marine organisms convert inorganic carbon into organic compounds using sunlight?
Photosynthesis
ExplanationPhotosynthesis is the process of converting inorganic carbon into organic compounds using sunlight.
#12
Which marine ecosystem is characterized by high biodiversity, often referred to as the 'rainforest of the sea'?
Coral reefs
ExplanationCoral reefs are known as the 'rainforest of the sea' due to their high biodiversity.
#13
What is the primary factor influencing the distribution of marine organisms in different oceanic zones?
Temperature
ExplanationTemperature is a primary factor influencing marine organism distribution in various oceanic zones.
#14
What is the process by which marine organisms release excess salt to maintain osmotic balance?
Osmoregulation
ExplanationOsmoregulation is the process by which marine organisms regulate salt levels to maintain osmotic balance.
#15
Which marine biome is characterized by extremely high pressure, low temperatures, and complete darkness?
Deep-sea vents
ExplanationDeep-sea vents are characterized by high pressure, low temperatures, and complete darkness.