chap 29 Animal Intro

chap 29 Animal Intro - Name Class Date Chap 29 Multiple...

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Name: ________________________ Class: ___________________ Date: __________ ID: A 1 Chap 29 Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. Within the kingdom Animalia there are about: a. 325 phyla. b. 16 classes. c. 32 classes. d. 35 phyla. e. 6 phyla. ____ 2. Currently, for any organism to be considered as an animal it must: a. show evidence of locomotion. b. not be an autotroph. c. show evidence of sexual reproduction. d. have a brain and nervous system. e. be at the tissue level of organization. ____ 3. Which of the following is not a characteristic of any animal? a. locomotion at some time during the life cycle b. multicellular eukaryotes c. heterotrophic d. sexual reproduction involving motile sperm e. All of these can be a characteristic of an animal. ____ 4. The adult form of which of the following animals is not capable of locomotion? a. sponges b. jellyfish c. ctenophores d. planarians e. flukes ____ 5. Which of the following is a major problem for sessile animals? a. They are unable to escape unfavorable environmental conditions. b. They are unable to sexually reproduce. c. They are limited in the variety of food they can consume. d. They are not capable of locomotion during their lifetime. e. As adults, they are haploid. ____ 6. Which statement best supports why animals most likely evolved in the ocean? a. They did not require a skeleton for support. b. Reproduction was independent of internal fertilization. c. The effects of gravity were minimal. d. Osmoregulation was not difficult. e. All of these. ____ 7. Animals apparently evolved: a. in freshwater. b. in the ocean. c. during the Cambrian explosion. d. in swamps. e. during the Devonian.
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Name: ________________________ ID: A 2 ____ 8. All of the following are characteristic of life in a marine environment except ? a. Many nutrients and gases are dissolved in the water and are readily available. b. Buoyancy helps to support the organisms. c. Currents may wash organisms away from suitable habitats. d. Osmotic balance is very difficult for invertebrates to maintain. e. Temperatures are relatively stable. ____ 9. If a marine invertebrate were placed into freshwater, it would have difficulty surviving because: a. it would not be able to obtain food. b. it would have difficulty with osmoregulation. c. it would not experience the temperature stability found in the oceans. d. it would not be able to obtain oxygen due to the absence of waves in the water. e. All of these. ____ 10. Fewer animals live in freshwater than in the ocean, because: a. freshwater is hypotonic and animals must spend energy to remove water from their bodies. b. freshwater is a less constant temperature environment. c.
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chap 29 Animal Intro - Name Class Date Chap 29 Multiple...

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