Question

plant and animal species in the tundra have developed special adaptations that help them survive their harsh environment. tundra plants, like grasses, moss, and lichen, are usually low to the ground. they need to grow quickly because the ground only thaws for a few months of the year. they have shallow roots because only the top few inches of soil become soft enough to penetrate.
tundra animals often have white fur or feathers to camouflage themselves on the snowy landscape. many arctic animals grow two layers of fur each winter to protect against the extreme cold. they are usually large and heavy, like musk oxen and caribou, or small and compact, like arctic hares. these body shapes expose less surface area to the tundra’s freezing temperatures. other animals, like birds, have not adapted to the tundra’s harsh winters. they arrive in spring to raise their young. then they migrate to warmer regions in winter.
according to the passage, which of these animals is best adapted to live in the tundra?
choose your option
a. a large brown cow
b. a small white fox
c. a gray elephant
d. a brightly colored bird

Explanation:

The passage states that tundra animals often have white fur/feathers for camouflage, and body shapes (large & heavy, small & compact) to minimize surface area for heat retention. Option B (a small white fox) has white fur (camouflage) and a small body (compact, good for heat retention), fitting tundra adaptations. Option A (brown cow) lacks white fur and a tundra - suitable body shape. Option C (gray elephant) is too large and not adapted for tundra cold/landscape. Option D (bright - colored bird) lacks white camouflage and likely isn't adapted for tundra winters (many birds migrate, and bright color isn't good for camouflage).

Answer:

B. A small white fox