Science chapter 15 Crossword
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
 
 
Down: 1) Vertebrate animal with a nearly constant internal temperature 2) A mammal with an external pouch for the development of its immature young3) Perood during which an embryo develops in the uterus; the length of time varies among species5) Endothermic vertebrates that have hair teeth specialized for eating certain foods and mammary glands. In females mammary glands produce milk for feeding their young 6) Animal that eats only other animals or the remains of other animals mammals having large sharp canine teeth and strong jaw muscles for eating flesh8) A mammal whose offspring develops inside the females uterus11) Animal tagt ears only plants or parts of plants; mammals with large premolars and molars or eatin only plants.13) Animal that eats plants and animals or animal flesh; mammals with incisors canine teeth and flat molars for eating plants and other animals. Across: 4) Soft fluffy feathers that provide an insulating layer next to the skin of adult birds and that cover the bodies of young birds7) A mammal that lays tough leathery shells and whose mammary glands Sony have nipples8) An organ that develops from tissue of the embryo and tissues that develop from tissues of the embryo and tissues that line the inside of the uterus and that absorbs oxygen and food from the mothers blood.9) Comnects the embryo to the placenta; moves food the placenta ti the embryo and removes the embryos waste products 10) Glands if mammals in females produce milk for feeding their young12) Strong lightweight feathers that give birds their coloring and shape and that are used for flight14) Process on which a bird rubs oil from an oil gland over its feathers to condition them
 

 

Create your own Crossword Puzzle for Free!		  Show Errors as I Type