What effect do algae blooms have on ocean ecosystems?(1 point)

Question

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

Answer 1

decreased oxygen in the water

Answer 2

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

Answer 3

Changes in farming practices such as draining wetlands and pesticide use

Answer 4

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

Answer 5

fire

Answer 6

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

Answer 7

increase in plankton