Science

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Across
  1. 2. a membrane-bound organelle that contains genetic material (DNA) of eukaryotic organisms.
  2. 5. the process by which living things absorb carbon from the atmosphere, sediments and soil, or food.
  3. 8. a gas that absorbs and emits radiant energy within the thermal infrared range.
  4. 11. DNA is made up of two strands that are twisted together.
  5. 14. process in which new organisms are created, by combining the genetic information from two individuals of different sexes.
  6. 15. a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell.
  7. 16. cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent.
  8. 17. a variant form of a gene.
  9. 18. everything that exists anywhere
Down
  1. 1. a DNA molecule with part or all of the genetic material of an organism.
  2. 3. CO2
  3. 4. physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
  4. 6. the haploid set of chromosomes in a gamete or microorganism, or in each cell of a multicellular organism.
  5. 7. a cell or organism that has paired chromosomes, one from each parent.
  6. 9. type of reproduction which does not involve the fusion of gametes or change in the number of chromosomes.
  7. 10. a fuel formed by natural processes
  8. 12. a modular space station in low Earth orbit.
  9. 13. the cosmic explosion that is hypothesized to have marked the origin of the universe