Zoology

To which phylum do vertebrates belong?

• Arthropoda
• Chordata
• Porifera
• Echinodermata

What do you call an animal with a backbone?

• invertebrate
• cold blooded animal
• vertebrate
• cartligenous 

At some point in their lives, all chordates have a flexible supporting rod in their backs called a 

• notochord
• gill
• nerve cord
• backbone

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

What is the difference between an endotherm and an ectotherm?

• Endotherm's body temperature changes with the environment and ecotoaherm's remain constant
• Ectotherm's body temperature changes with the environment and endotherm's stay constant
• Both ectotherm's and endotherm's have fluctuating body temperatures.
• Both endotherms and ectotherms have constant body temperatures.

Animals who regulate their body temperature internally with metabolism are ___

• endotherms 
• ectotherms 

Are mammals endotherms or ectotherms? 

• endotherms
• ectotherms

How many chambers do mammal hearts have? 

• 1
• 2
• 3
• 4

Which is not one of the 6 characteristics only mammals have?

• are endothermic 
• have hair 
• produce milk for young
• have a tympanic membrane 

Which of the following is a characteristic that all mammals share?

• they all have a pouch
• they all have a cloaca
• they all have hair
• they all have a short gestational period

Mammals that lay eggs

• marsupials
• monotremes
• placental 
• mammals