Birds review

Zoologists have long seen the evolutionary connection between birds and what other group of animals? 

• Fish
• Amphibians
• Humans
• Reptiles 

Archaeopteryx is the first known bird and is thought to have evolved from...

• Theropods 
• Amphibians
• Raptors
• Quadrupeds 

A bird's feathers are very similar to a reptile's scales. They are both made of this substance. 

• Dentin 
• Spicules
• Keratin
• Cartilage 

A bird with a long, flattened beak (like a duck) is specialized for what food habits?

• Seed cracking
• Eating nectar
• Spearing fish
• Straining algae and plants

A bird with a short, thick beak (like a robin) is specialized for what food habits?

• Seed cracking
• Eating nectar
• Tearing flesh
• Straining algae and plants

A bird with a sharp, curved, and pointed beak (like a hawk) is specialized for what food habits?

• Seed cracking
• Eating nectar
• Tearing flesh
• Spearing fish

Why is it important for birds to digest their food quickly?

• If they absorb too much fat from their diet, they can impair their livers.
• If they take too long, they are susceptible to predators.
• They can't afford the extra weight in flight.
• They often swallow prey alive. Fast digestion ensures minimal injury to digestive system.

Birds are...

• Ectothermic homeotherms
• Ectothermic poikilotherms
• Endothermic homeotherms
• Endothermic poikilotherms 

All birds lay eggs that develop outside the body. This means they are...

• Viviparous
• Ovoviviparous
• Oviparous
• Ovuliparous 

Adaptation that helps raptors focus two eyes in coordinated manner to see prey from far away

• binocular vision

• color vision

• UV vision

• low vision