Which of the organisms pictured is a decomposer?

Some salamanders have a sticky tongue and a wide mouth lined with teeth. These animals most likely feed on

Which of the following characteristics would BEST help a bat hunt for food at night?

Which of the following adaptations would probably help a plant survive in the desert?

A porcupine has sharp quills that protect it from predators. Which of these is a behavioral adaptation of porcupines that makes the quills more effective for protection?

A bird called a ptarmigan has feathered feet. The feathers on the feet of the ptarmigan are most helpful when this bird—

Pill bugs can often be found underneath rocks and rotting logs. When exposed to light, they immediately try to find a dark place to hide. This reaction by the pill bugs is a result of—

The diagrams above show an arctic bird in the summer and the same bird in the winter. Growing thicker fur in the winter helps some animals to—

Animals that live in the desert must be able to survive in very hot temperatures. Which of the following is an adaptation that helps desert animals survive in hot temperatures?

Birds eat moths. Moths in a given area have been changing colors slowly over many years to match the color of the tree bark on which they are found. What is the MOST LIKELY reason for this color change?

Deer eat plants. Some plants, however, have adaptations that keep the deer from eating them. Which adaptation is likely to keep deer from eating a particular plant?

Blue crabs can be found in coastal waters. Which of these explains why the crab’s outer shell helps it survive in its habitat?

The plover is a bird that finds its food at the edge of shallow water. Which adaptation would help this species find food in shallow water?

Birds that eat other birds usually have short, curved beaks and strong feet with sharp talons. Which of the birds pictured above MOST LIKELY eats other birds?

Hooves on buffalo and webbed feet on ducks are –

The purpose of animals with webbed feet is–

Colorado has a large population of bighorn sheep. They are herbivores and have hooves with specialized claws or toenails adapted for running and helping them escape predators. Mountain lion, elk, chipmunks, and black bears also live in Colorado. Which of the animals below has feet that are most similar to the Colorado bighorn sheep?

Biologists study structural adaptations of animals such as marine birds to understand the function of their feet. Which question below can best be answered from the biologists’ study?

Which of the following is a structural adaptation of a cow?