Animal Body Systems

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Across
  1. 4. Complex animals, like dogs, have an ____________: hard material such as bone embedded within the animal.
  2. 7. o make and move lymph, a clear fluid that contains white blood cells which helps against infection.
  3. 9. body’s defense system against pathogens, including bacteria, viruses, protozoa, and others
  4. 12. secrete hormones into the blood to regulate bodily functions, such as growth and metabolism
  5. 13. Body Systems are __________ to carry out different tasks
  6. 14. Sends signals through the body Controls both voluntary actions (e.g. conscious movement) & involuntary actions (e.g. breathing)
  7. 15. Two types of circulatory systems in animals are _______ and _______. (name both)
  8. 17. Complex animals have a ____________ to coordinate the activities in their body and allow them to sense and respond in an environment.
  9. 18. Type of fertilization that occurs outside the body and common in aquatic animals
  10. 22. This system provides a framework that supports an animal's body.
  11. 24. To move blood, oxygen, nutrients, carbon dioxide and hormones, around the body.
  12. 25. Type of fertilization that occurs inside the body and common with land animals.
  13. 26. Purpose of this task is to produce offspring to ensure that the species survives
Down
  1. 1. Some invertebrates, such as a insects and crabs, have an __________: a rigid external skeleton.
  2. 2. In simple animals, gases are exchanged directly with their environment through _________.
  3. 3. Contains over 650 muscles that aid in movement, blood flow, and other bodily functions.
  4. 5. Type of reproduction formed by the union of a male and female gamete.
  5. 6. Purpose of this task is to obtain energy and nutrients from food
  6. 8. Purpose of this task is to transport oxygen and nutrients to the other parts of the body.
  7. 10. Purpose of this task is to remove wastes from cellular metabolism
  8. 11. Provides shape, support, and protection for the body Allows for movement Produces red blood cells
  9. 16. To act as a protective barrier, retain body fluids, eliminate waste products, and regulate body temperature.
  10. 19. Purpose of this task is to exchange oxygen and carbon dioxide gases
  11. 20. To produce and eliminate a waste product called urea,
  12. 21. Type of reproduction that does not involve fusion of two gametes
  13. 23. Allows for sexual reproduction