Multiple choice

Lower animals are called invertebrates because _____________.

  1. they do not have fixed shape

  2. they are unicellular organisms

  3. they do not have backbone

  4. they are found in all kinds of habitats

  5. they are saprophytes
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The animals, which do not have backbone in their body are called invertebrates.

Keep practicing — related questions