Polar bears hunt for ringed seals by waiting for them to emerge from breathing holes in the ice. Which abiotic change may decrease a polar bear’s ability to hunt?(1 point)

Question

Responses

increased temperatures
increased temperatures

increased competition
increased competition

increased seal population
increased seal population

increased ice cover

Answer 1

increased temperatures

Answer 2

Ringed seals give birth in lairs carved out of packed snowdrifts. Which abiotic change may increase pup mortality?(1 point)
Responses

reduced temperatures
reduced temperatures

reduced polar bear population
reduced polar bear population

reduced snowfall
reduced snowfall

reduced carbon dioxide

Answer 3

reduced snowfall

Answer 4

Which component of a marine ecosystem is abiotic?(1 point)
Responses

water
water

algae
algae

shark
shark

dolphin

Answer 5

water