adaptations for cold
polar bears have black skin and white fur because __.
the white is camouflage on the ice, and the black absorbs sunlight to warm them
the roots of desert plants grow __.
near the surface of the soil
plants have large leaves to ____.
catch sunlight
crabs have _____ that let them get oxygen when out of water.
gill chambers
birds have ___ bones which make it easier to fly.
hollow
____ is when animals move from a cold place in winter to a warm place.
migration
camels' humps store ___.
fat (energy)
many small animals are ___ to camouflage themselves.
green
fish have ___ and ___ to help them swim better.
fins, tails
birds have strong ____ muscles.
wing
arctic hares are __ in summer and ___ in winter
brown, white
jackrabbits have long ears which ___.
release heat and let them hear predators
some plants grow up trees to ___.
get sunlight
some whales ___ to warmer waters in winter.
migrate
some birds ___ to other places in different seasons
migrate
many marine animals have a thick layer of fat called __ that keeps them warm.
blubber
many small animals live ___ to keep cool
underground
____ are little hands that small plants use to hold on to and climb up trees.
tendrils
salmon have two sets of gills so they can live in ___ and ____.
freshwater, saltwater
birds that are predators have ___, ____, and ____.
sharp beaks, strong talons, good eyesight
penguins live at the __ pole, and polar bears live at the ___ pole.
south, north
cactus have thorns to _____.
protect them from being eaten
Roots grow ___ in the rainforest because only that part of the soil has nutrients.
near the surface of the soil
pufferfish protect themselves from predators by ___.
puffing up their bodies to seem bigger, and putting out sharp spikes
Some birds are ____ because they eat dead animals.
scavengers