Mr. Lee is a scientist who is studying an extinct bird. He wants to learn more about how it lived. Which feature of the bird would be the best thing for him to study to discover what the bird ate?

A cardinal is a type of bird that lives in North America and South America. There are many kinds of cardinals. Most have bright, colorful feathers that are red, orange, or blue. The following picture shows one kind of cardinal.

he main sources of food for birds that live in a grassland are seeds, mice, and burrowing insects. Which beak would be the least useful in a grassland?

A safflower is a plant with a small seed that has a thick shell. Birds needs to crack open the shell to eat the seed. Which type of beak would be best suited to eating safflower seeds?

The macaw, which is shown in the following picture, is a bird from South America that eats the seeds from inside Brazil nuts. Brazil nuts have a tough shell that few birds can crack. Which feature of the macaw’s beak is most likely different from other birds that eat seeds and nuts?

The following picture shows flowers with an unusual shape. Which beak shape would best allow a bird to reach the nectar inside the flower?

Wan is investigating birds in a wetland. He notices that many of the birds have similar beaks with the same kind of shape. Which statement is the most likely explanation for the similar beaks?

Bullfrogs are Florida’s largest frog. Frogs spend part of their life cycles in water and part on land. Which physical characteristic is most useful for a water environment?

Pelicans are birds that live in many water environments. They can live in large lakes, in marshy wetlands, and along beaches near the ocean. The following picture shows a pelican. What does the pouch on its bill most likely help the pelican do?

The following pictures show four birds. Which bird has a physical characteristic that would be most useful in the water of a marshy wetland?

The Florida bald cypress tree grows in swamps and river floodplains. Which adaptation is most important for trees like the bald cypress?

Trout are fish that live in clear, cold rivers that are rich in oxygen. What do fish use to get oxygen?

The water hyacinth lives in lakes and ponds. It forms large floating mats of plants. Because it does not root in soil, which adaptation lets it get nutrients directly from the water?

Acorns are a source of food for some birds. They are seeds that fall from wide-leafed trees called oaks. In which environment would acorns most likely be found?

A stilt is a bird found in the Florida wetlands. It wades in shallow water and has a long, sharp beak. What do stilt most likely eat?

Marcus is studying birds in his neighborhood. What does the bird shown here most likely eat?

A researcher was studying the beaks of four different birds to learn more about the birds’ habitats and what they eat. Which bird is most likely to eat worms and burrowing insects?

Arabian camels live in the deserts of northern Africa and southwest Asia. They have a single hump on their back that stores fat. The rest of the camel’s body has no fat. How does this help the camel survive in the desert?

Most of the plants in a grassland ecosystem are grasses. There are few shrubs, trees, and other tall plants. As a result, there is very little protection from strong winds. How are grasses well adapted to strong winds?