Vertebrates, Invertebrates, and Adaptations

Animals that do not have a backbone are known as ___________.

• Vertebrates

• Snakes

• Invertebrates

• Lizards

A sponge obtains oxygen by using

• air tubes

• specialized cells

• lungs

• gills

A snake will bask in the sunlight in order to get warm. The snake is doing this in response to his

• body temperature changing due to the environment.

• body temperature not changing due to the environment and just wants some Sun.

• body temperature changing due to his movement.

The white-tailed ptarmigan lives at high elevations on mountains that receive a lot of snow in the winter. During the summer, the ptarmigans’ feathers are mottled brown. The birds lose the brown feathers and grow a new set of white feathers during the winter. Scientists are concerned that rising global temperatures will affect the white-tailed ptarmigan. If global climate change leads to the elimination of snow in the habitat of white-tailed ptarmigans, which adaptation is most likely to occur over many generations?

• Birds with white feathers in areas without winter snow will be easier for predators to find. Over time this could lead to white-tailed ptarmigans that have brown feathers throughout the year.

• Birds with brown feathers in areas without winter snow will be easier for predators to find. Over time this could lead to white-tailed ptarmigans that have white feathers throughout the year.

• Birds with white feathers will be easier to see on the ground in the summer. Over time this could lead to white-tailed ptarmigans that have white feathers throughout the year.

• Birds with brown feathers will be easier to see on the ground in the winter. Over time this could lead to white-tailed ptarmigans that have brown feathers throughout the year.

How does a segmented worm breathe?

• air tubes

• specialized cells

• through moist skin

• gills

If our class pet, a bearded dragon, moves from under his log to under the heat lamp, what is he trying to do because of his environmental stimulus?

• get cool due to his body temperature being too warm

• get warm due to his body temperature being too cold

• he just wants a different view from his habitat

A vertebrate is an animal that

• does not have a backbone

• have scales

• has a backbone

• have exoskeletons

Frogs, toads, and salamanders are apart of what vertebrate phylum?

• mollusks

• reptiles

• amphibians

• fish

The long, hot days of summer are here. We would expect this dog to _______________ to cool off.

• pant and shed

• pant and sweat

• shiver and shed

• pant and shiver

The days are getting shorter and the temperature is dropping. The squirrel responds to these cues by

• migrating

• courtship

• shedding fur

• gathering food