D2L Marine Biology

Edit Answers
123456789101112131415161718192021
Across
  1. 4. an organ that forms in the womb, also called the uterus, during pregnancy
  2. 5. an organism, like mammals and birds, that maintains a stable internal body temperature by generating heat internally through metabolic processes
  3. 7. animal that lacks a backbone or bony skeleton
  4. 10. free-swimming, umbrella or bell-shaped body form of cnidarians characterized by tentacles that hang downwards
  5. 13. gas-filled organ in bony fish that functions as a hydrostatic organ, allowing them to control buoyancy and maintain a stable position in the water column
  6. 14. type of egg, characteristic of amniotes that contains extra-embryonic membranes and a shell, allowing for development in a terrestrial environment
  7. 15. animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes
  8. 16. An organism whose body temperature is largely determined by heat exchange with its surroundings
  9. 18. an internal skeleton or supporting framework in an animal
  10. 20. the shedding or casting off of an outer layer or covering and the formation of its replacement
  11. 21. when two halves or sides of something are not mirror images of each other
Down
  1. 1. growth or structure, either a sessile or pedunculated growth, that protrudes from a mucous membrane
  2. 2. a unique hydraulic system found in echinoderms that facilitates locomotion, feeding, and respiration by using water pressure
  3. 3. possesses both male and female reproductive organs
  4. 6. A tough, flexible tissue that lines joints and gives structure to the nose, ears, larynx, and other parts of the body
  5. 8. symmetry in which similar parts are arranged in a balanced way around the center of the body
  6. 9. an asexual reproduction method in which a new organism develops from a bud of an existing organism
  7. 11. a hard covering that supports and protects the bodies of some types of animals
  8. 12. symmetry in which similar anatomical parts are arranged on opposite sides of a median axis
  9. 17. the study of organisms that live on, in, or near the bottom of aquatic environments
  10. 19. modified sweat glands in female mammals that produce milk to nourish their offspring