Many animals do not have heads (starfish, clams, jellyfish) but all vertebrates

Question

Many animals do not have heads (starfish, clams, jellyfish) but all vertebrates do. What is one advantage of having a head?

protects the brain

allows one part of the body to be specialized for sensory reception

allows us to see where we are going

allows us to communicate

Humans and other vertebrates have segemented bodies (head, trunk, appendages). Which of these is an advantage of segmentation?

different parts of the body can be specialized for different functions

provides spaces for organs

allows locomotion

allows regeneration

The classification of Craniata excludes which animals?

hagfish

sea stars

amphibians

annelids

Which of the following would you expect to have the broadest range?

omnivore

carnivore

herbivore

impossible to predict

protects the brain

allows one part of the body to be specialized for sensory reception

allows us to see where we are going

allows us to communicate

Explanation / Answer

1. answer ; allows us one part of the body to be specialized for sensory reception

2.answer ; different parts of the body can be specialized for different functions

3. answer ; annelida

4. answer ; omnivoress will be in broadest range

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