What effect do algae blooms have on ocean ecosystems?(1 point)
Responses
increased fish population
increased fish population
decreased carbon dioxide in the water
decreased carbon dioxide in the water
increased underwater plant population
increased underwater plant population
decreased oxygen in the water
decreased oxygen in the water
Which of the following do researchers think is a primary factor in the decrease of North American bird populations?(1 point)
Responses
Decreased hunting of predator species
Decreased hunting of predator species
Changes in farming practices such as draining wetlands and pesticide use
Changes in farming practices such as draining wetlands and pesticide use
Recreational hunting of bird species such as waterfowl
Recreational hunting of bird species such as waterfowl
A decrease in co
Changes in farming practices such as draining wetlands and pesticide use
The cones of lodgepole pine trees release their seeds when exposed to heat. Which abiotic event may benefit this plant?(1 point)
Responses
flood
flood
drought
drought
tornado
tornado
fire
fire
Jellyfish compete with anchovies for plankton and are preyed upon by tuna and swordfish. Which change might benefit jellyfish?(1 point)
Responses
increase in anchovies
increase in anchovies
increase in plankton
increase in plankton
increase in tuna
increase in tuna
increase in swordfish