Animal Crossword

1234567891011121314151617181920
Across
  1. 3. A temporary organ that joins the mother and fetus, transferring oxygen and nutrients from the mother to the fetus and permitting the release of carbon dioxide and waste products from the fetus
  2. 6. comprise all species of animals within the subphylum Vertebrata
  3. 11. any so-called cold-blooded animal—that is, any animal whose regulation of body temperature depends on external sources, such as sunlight or a heated rock surface
  4. 13. a form of asexual reproduction in which a new individual develops from some generative anatomical point of the parent organism
  5. 14. is an important structural component of the body. It is a firm tissue but is softer and much more flexible than bone
  6. 16. Glands- milk-producing gland characteristic of all female mammals and present in a rudimentary and generally nonfunctional form in males
  7. 19. the shedding or casting off of an outer layer or covering and the formation of its replacement
  8. 20. animal lacking a backbone
Down
  1. 1. An exoskeleton is the rigid covering found on the exterior of many animals, particularly invertebrates such as arthropods and mollusks.
  2. 2. Symmetry-Symmetry in biology refers to the symmetry observed in organisms, including plants, animals, fungi, and bacteria
  3. 4. is a form of cnidarian in which the body is shaped like an umbrella. A polyp is a form that attaches to a surface.
  4. 5. absence of or deviation from the regular disposition of similar parts of the body relative to a specific point, axis, or plane.
  5. 7. An endoskeleton is a skeleton that is on the inside of a body
  6. 8. Vascular System-a system of canals in echinoderms containing a circulating watery fluid that is used for the movement of the tentacles and tube feet.
  7. 9. Bladder-The swim bladder, gas bladder, fish maw, or air bladder is an internal gas-filled organ that contributes to the ability of many bony fish to control their buoyancy, and thus to stay at their current water depth without having to waste energy in swimming.
  8. 10. In reproductive biology, a hermaphrodite is an organism that has complete or partial reproductive organs and produces gametes normally associated with both male and female sexes.
  9. 12. Describes a chemical reaction that absorbs energy (usually in the form of heat)
  10. 13. is the community of organisms that live on, in, or near the seabed, river, lake, or stream bottom, also known as the benthic zone.
  11. 15. The hollow, columnar, sessile form of Cnidarians
  12. 17. symmetry-y is the arrangement of body parts around a central axis, like rays on a sun or pieces in a pie
  13. 18. Eggs-The type of egg produced by reptiles, birds, and prototherian (egg-laying) mammals (amniotes), in which the embryo develops inside an amnion.