What are examples of external and internal properties?

How did colonization and argicoulter affect the animals? Why does an American buffalo migrate? What are some important considerations to keep in mind when caring for skinny pig pets? What does it mean when a horse paws the ground? What is a group of bours called? What are the pros and cons of having exotic animals as pets? What are the benefits of feeding my cat Science Diet cat food for urinary tract health? How can I tell if a female cat is spayed? Do dogs change color as they age, and if so, what are the typical color changes that occur? Can cats have steak as part of their diet? What is the normal rectal temperature for dogs? Why do chihuahuas scoot there but on th ground? What animal breathe through moist skin? How fast can the chicken from hell run? What to do if your child eats microgynon? How can I effectively train my puppy using gentle leaders? Is it safe for cats to eat yellow rice? Where do ginnepigs live? How do hummingbirds survive when the weather is changing? What term defines the changes in allele frequency that have a big effect in small populations?