Dichotomous Keys/ Natural Selection, Selective Breeding

Front

Which fish is most likely a bluegill based on the identification key?

Back

Front

In what order should a winged insect be classified based on the key? Options: Mantodea, Raphidioptera, Coleoptera, Lepidoptera

Back

Coleoptera

Front

Based on the identification key, which type of tree is this sample from? Options: Ginkgo, Honey locust, Horse Chestnut, Black Maple

Back

Horse Chestnut

Front

Characteristic helpful in identifying a butterfly using a dichotomous key: Migrates north every spring, Hangs on branches to rest, Flutters wings faster on hot days, Hind wings have tail extensions.

Back

Hind wings have tail extensions.

Front

Arachnid with a segmented abdomen, long legs, and a tail with no stinger. Identify the arachnid.

Back

Whip scorpion

Front

Observation of fiddler crab structures: five pairs of walking legs on each side, an enlarged propodus on both front legs, a pair of eyes on stalks at the top of the body, two pairs or chelipeds for a total of four.

Back

a pair of eyes on stalks at the top of the body.

Front

To what order does an insect with two pairs of scaly wings belong?

Back

Lepidoptera

Front

Early farmers most likely used seeds only from wheat plants with -
Options: larger grains that could produce more food per plant , taller stems that could block sunlight from weeds growing at ground level , larger flowers that could be sold for additional income, thinner stems that could endure heavy winds

Back

larger grains that could produce more food per plant

Front

Which variation would give a leopard seal the greatest chance of surviving in Antarctica? Options: More spots on its coat, More elongated head, Wider, flatter teeth, Thicker layer of blubber.

Back

Thicker layer of blubber

Front

When Charles Darwin visited the Galapagos Islands in the 1800s, he observed many types of organisms that were similar but lived on different islands. The four species of mockingbirds found on the Galapagos Islands are shown below. Each species lives on a different island. Why does the Hood mockingbird have a longer beak?

Back

The Hood mockingbird's longer beak is an adaptation to the food available in the bird's habitat.