characteristics of living things

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Across
  1. 2. a group of organisms that can reproduce and produce fertile offspring.
  2. 4. removal from organisms of the waste products of metabolism (chemical reactions in cells including respiration), toxic materials and substances in excess of requirements
  3. 6. the processes that make more of the same kind of organism
  4. 7. a permanent increase in size and dry mass by an increase in cell number or cell size or both
Down
  1. 1. the chemical reactions in cells that break down nutrient molecules and release energy for metabolism
  2. 3. the ability to detect or sense stimuli in the internal or external environment and to make appropriate responses
  3. 5. taking in of materials for energy, growth and development: plants require light, carbon dioxide, water and ions: animals need organic compounds and ions and usually need water.