Features of the Animal Kingdom

Review Questions

Which of the following is not a feature common to most animals?

  1. development into a fixed body plan
  2. asexual reproduction
  3. specialized tissues
  4. heterotrophic nutrient sourcing

Hint:

B

During embryonic development, unique cell layers develop and distinguish during a stage called ________.

  1. the blastula stage
  2. the germ layer stage
  3. the gastrula stage
  4. the organogenesis stage

Hint:

C

Which of the following phenotypes would most likely be the result of a Hox gene mutation?

  1. abnormal body length or height
  2. two different eye colors
  3. the contraction of a genetic illness
  4. two fewer appendages than normal

Hint:

D