Ch 8 vocab

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Across
  1. 3. the process of breaking down food by mechanical and enzymatic action in the alimentary canal into substances that can be used by the body.
  2. 6. metamorphosis a process undergone by certain insects whereby the young hatch in the adult form though they lack mature sexual organs and there is no pupal stage
  3. 7. an animal that feeds on plants
  4. 8. an insect in its inactive immature form between larva and adult
  5. 10. system the system that circulates blood and lymph through the body, consisting of the heart, blood vessels, blood, lymph, and the lymphatic vessels and glands.
  6. 15. classical mechanics as a force multiplied by the amount of time it acts over.
  7. 16. system The central nervous system is that part of the nervous system that consists of the brain and spinal cord.
  8. 19. a free-swimming sexual form of a coelenterate
  9. 20. a mythological spirit of nature imagined as a beautiful maiden inhabiting rivers, woods, or other locations
  10. 21. the tailed aquatic larva of an amphibian (frog, toad, newt, or salamander), breathing through gills and lacking legs until the later stages of its development.
  11. 22. neuron a neuron that passes from the central nervous system or a ganglion toward or to a muscle and conducts a nerve impulse that causes movement
  12. 24. bladder a gas-filled sac present in the body of many bony fishes, used to maintain and control buoyancy.
  13. 28. egg an egg covered by an almost impervious shell which protects it and isolates it from the environment but is sufficiently porous to allow gas transfer
  14. 29. respiration process through which cells convert sugars into energy.
  15. 30. system The system of organs responsible for getting food into and out of the body and for making use of food to keep the body healthy.
  16. 31. feeder obtains its food by filtering organic matter or minute organisms from a current of water that passes through some part of its system.
  17. 32. a point where two or more bones are connected in a human skeletal system.
  18. 33. a neuron that conveys impulses from one neuron to another. — called also association neuron, associative neuron, internuncial, internuncial neuron.
  19. 35. period the period during which an embryo develops
  20. 36. fertilization The act or process of initiating biological reproduction by insemination or pollination
  21. 37. the active immature form of an insect, especially one that differs greatly from the adult and forms the stage between egg and pupa, e.g. a caterpillar or grub.
Down
  1. 1. Metamorphosis refers to change in anatomical and physiological form through a series of life stages.
  2. 2. an animal that feeds on flesh.
  3. 4. a flattened circular organ in the uterus of pregnant eutherian mammals, nourishing and maintaining the fetus through the umbilical cord.
  4. 5. Neuron transmits information about changes in the internal and external environment to the central nervous system.
  5. 9. a solitary or colonial sedentary form of a coelenterate
  6. 11. system series of organs responsible for taking in oxygen and expelling carbon dioxide.
  7. 12. physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration
  8. 13. the process of transformation from an immature form to an adult form in two or more distinct stages
  9. 14. An object, event, or a factor capable of inciting a physiological response.
  10. 17. an animal or person that eats food of both plant and animal origin.
  11. 18. elastic tissue that composes most of the skeleton of vertebrate embryos and except for a small number of structures
  12. 20. Neurons typically consist of a cell body, which contains a nucleus and receives incoming nerve impulses, and an axon, which carries impulses away from the cell body.
  13. 22. A muscle consists of many muscle tissues bundled together and surrounded by epimysium, a tough connective tissue similar to cartilage.
  14. 23. The shedding or casting off of an outer layer or covering and the formation of its replacement.
  15. 25. a bodily process occurring due to the effect of some antecedent stimulus or agent; "a bad reaction to the medicine
  16. 26. A brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals.
  17. 27. vascular system a network of water vessels in the body, the tube feet being operated by hydraulic pressure within the vessels.
  18. 34. fertilization mode of reproduction in which a male organism's sperm fertilizes a female organism's egg outside of the female's body.