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)
Responses
increased temperatures
increased temperatures
increased competition
increased competition
increased seal population
increased seal population
increased ice cover
increased temperatures
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
reduced snowfall
Which component of a marine ecosystem is abiotic?(1 point)
Responses
water
water
algae
algae
shark
shark
dolphin