Living Things (Lessons 1-3)

Which animal group has mostly live births?

• reptiles
• arthropods
• mammals
• amphibians

Matt falls and cuts his leg. It leaves a scar. Which best describes the scar?

• inherited trait
• acquired characteristic
• learned behavior
• inherited behavior

What do sea jellies, earthworms, and spiders have in common?

• They do not have backbones.
• They all have backbones.
• They all have eight legs.
• They all have stingers.

How would you classify this animal?

• amphibian
• mollusk
• worm
• arthropod

Which animal group includes cold-blooded vertebrates that have dry, scaly skin?

• amphibians
• mollusks
• mammals
• reptiles

Which is an example of an inherited trait?

• green eyes
• pierced ears
• broken arm
• dyed hair

Vocabulary: an animal that has a hard covering outside its body

• vertebrate
• metamorphosis
• trait
• arthropod

Vocabulary: an animal without a backbone  

• vertebrate
• invertebrate
• larva
• pupa

Vocabulary: to receive from a parent 

• inherit
• trait
• instinct
• vertebrate

Vocabulary: a feature passed on to a living thing from its parent

• metamorphosis

• inherit

• trait

• invertebrate