Discovering the World of Birds

During a biology class, Priya asked, "What muscles do birds use to help them fly?"

• Deltoid muscles

• flight muscles

• Trapezius muscles

• Biceps brachii

Luna is observing how a streamlined body helps birds in flight. How does this adaptation benefit them?

• A streamlined body helps birds by reducing air resistance, allowing for more efficient flight.

• A streamlined body helps birds to fly slower and more gracefully.

• A streamlined body allows birds to store more energy for long flights.

• A streamlined body increases drag, making flight harder.

What happens during the downstroke of a bird's wings?

• The wings create drag and resistance.

• The wings generate lift and thrust.

• The wings remain stationary and do not move.

• The wings fold and retract.

Lily is observing birds in her backyard. What is the purpose of the upstroke in bird flight?

• To assist in landing maneuvers.

• To reposition the wings and reduce drag during flight.

• To provide lift during takeoff.

• To increase speed while diving.

Ethan is studying birds and wants to know about the different types of feathers they have. Can you help him?

• Tail feathers, wing feathers, beak feathers

• body feathers, down feathers, flight feathers

• Colorful feathers, soft feathers, hard feathers

• Decorative feathers, primary feathers, secondary feathers

Can Benjamin name a flightless bird?

• Eagle

• Penguin

• Sparrow

• Ostrich

How do the feet of birds help them in their environment?

• Birds' feet are primarily used for flying long distances.

• Birds' feet help them adapt to their environments by providing specialized functions for swimming, perching, hunting, and walking.

• Birds' feet are mainly for digging in the ground.

• Birds' feet are only for keeping their balance while standing still.

Mia is studying birds and wants to know what type of feathers keeps them warm.

• body feathers

• Tail feathers

• Down feathers

• Flight feathers

Maya observed that some birds in her backyard have long, pointed beaks. Why do these birds have such beaks?

• To attract mates.

• To access specific food sources.

• To build nests more efficiently.

• To improve flight speed.

Nora is studying the different types of feathers on birds. What is the function of body feathers?

• To aid in the digestion of food

• To help birds swim better in water

• To attract mates with bright colors

• The function of contour feathers is to provide insulation, streamline the body for flight, and protect the bird.