Answer:
Protists
Explanation:
Animal like protists which we called protozoans are eukaryotic, unicellular, heterotrophic organisms without cell wall found in aquatic environment.
Humans' and rats' incisors are larger than their other teeth, though humans' incisors are only marginally larger. They perhaps share this characteristic to help them adapt to an omnivorous diet.
B. Live in Trees
Animals such as Squirrels are Arboreal. <span />
Answer:
it's called taxonomy or binomial nomenclature
the first name is generic (from genus) and begins with a capital letter
the second name is specific (from species) and begins with a small letter
