System Hierarchy of Life

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Across
  1. 7. Allow organisms to reproduce which prevents their species from becoming extinct
  2. 9. is a communication network of nerve cells that the body uses to transmit information and coordinate bodily functions. It's comprised of the brain the hub of sensory and intellectual activity the spinal cord, and the many cranial and spinal nerves that emanate from them.
  3. 10. system The cardiovascular system delivers oxygen white blood cells hormones and nutrients throughout the body, and plays a vital role in helping the body meet the demands of activity, exercise, and stress. the heart, blood vessels, and blood.
  4. 11. is a barrier against infections and it helps regulate the body temperature, ncludes the epidermis, dermis, hypodermis, associated glands, hair, and nails. In addition to its barrier function, this system performs many intricate functions such as body temperature regulation, cell fluid maintenance, synthesis of Vitamin D, and detection of stimuli.
  5. 12. is to filter blood and create urine as a waste by-product. The body takes nutrients from food and converts them to energy. It include the kidneys, renal pelvis, ureters, bladder and urethra.
Down
  1. 1. Transport materials to and from cells
  2. 2. breaks down food into nutrients such as carbohydrates, fats and proteins. They can then be absorbed into the bloodstream so the body can use them for energy, growth and repair.
  3. 3. is a series of glands that use information carried by the nervous system to help regulate the body's processes. It includes the hypothalamus, pineal gland, pituitary gland, thyroid gland, parathyroid glands, thymus, adrenal glands, and pancreas.
  4. 4. The tissues and organs that produce, store, and carry white blood cells that fight infections and other diseases this system includes the bone marrow, spleen, thymus, lymph nodes, and lymphatic vessels (a network of thin tubes that carry lymph and white blood cells).
  5. 5. Allows for movement by contracting functions of the muscular system are movement, support, protection, heat generation, and blood circulation. It includes skeletal muscle tissues, smooth muscle tissues, and cardiac muscle tissues.
  6. 6. Takes in oxygen and removes carbon dioxide and water
  7. 8. Fights against foreign invaders in the body