Download Mutation The primary source of variation for all life forms.

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Learn Evolution
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Across
7. In the game of evolution you don’t have to be the best you just have to be better than your…
9. Has been given credit for the term evolution.
11. Fossils, anatomy, embryo and DNA are examples of “THIS” that suggest all living things are related.
12. The purpose of natural selection is to remove this type of variations and maintain successful variation.
14. Variation, selection, and time are the 3 ingredients needed for this.
15. Favorable genes gets ___ to the next generation if it increases our offspring’s chances of survival.
16. Evolution can modify existing structures but it has to work within the limits of what is…
19. Darwin concluded the finches beaks changed based on where the finches…
20. The body structure Darwin studied.
22. Whether a mutation conveys an advantage, disadvantage, or is neutral depends on an organism’s…
26. The species that Darwin studied.
27. Mutations that are passed to offspring occur in these types of cells.
28. Small and gradual changes to influential genes over a long period of time can change a population to create this on
our planet?
29. Diversity begins with genetic variations here.
30. Both humans and fish have a series of pouches near the developing throat. In fish, these pouches develop into…
36. Controls the genetic variations that are kept and the genetic variations that are eliminated.
39. What the millions of different species on our plant compete for.
Down
1. Like a family tree this shows how all living things are related.
2. The selection that has a goal in mind; to preserve a specific trait. Usually controlled by humans.
3. The second source of variation that shuffles our genes during reproduction to create new combinations.
4. Fossils, anatomy, embryo and DNA
are also suggest that all living things share a common…
5. Where Darwin visited and gathered data to support the theory of evolution.
6. Another name for selective breeding.
8. The approximate number of different species on our planet.
10. A structure that use to have a purpose in the past environment but doesn’t serve a purpose any longer.
13. The 2 processes stated above are always at work creating this in all life forms.
17. The number of genes that have been preserved over the 3.4 billion years of evolution.
18. Both humans and other mammals have a larynx, humans can speak because our larynx sits ___ in the throat area.
20. Natural selection favor species that are ___ suited for their environment
21. The cell division in which crossing over takes place.
23. Mutations and genetic recombination are the 2 processes that introduce this.
24. Competition for resources, predators, and the changing environment can do this to a species.
25. Humans are 98% related to this animal.
31. Mutations in controlled regions or __, change the timing, location and level of gene activation.
32. An accepted explanation based on a large number of observations and experimental results.
33. Moving on land allowed the first vertebrate to avoid this.
34. The first living thing appeared on earth over 3.4 ___ years ago.
35. The primary source of variation for all life forms.
37. Mutations are like these in the DNA coping process.
38. This theory describes how the descendants of this first cell have changed over countless generation to produce the
various of species on our planet today.
40 of 40 words were placed into the puzzle.
Billion The first living thing appeared on earth over 3.4 ___ years ago.
Evolution This theory describes how the descendants of this first cell have changed over countless generation
to produce the various of species on our planet today.
Million The approximate number of different species on our planet.
Change Variation, selection, and time are the 3 ingredients needed for this.
Variation Mutations and genetic recombination are the 2 processes that introduce this.
Randomdiversity The 2 processes stated above are always at work creating this in all life forms.
Naturalselection Controls the genetic variations that are kept and the genetic variations that are eliminated.
Eliminate Competition for resources, predators, and the changing environment can do this to a species.
Passed Favorable genes gets ___ to the next generation if it increases our offspring’s chances of survival.
Unfavorable The purpose of natural selection is to remove this type of variations and maintain successful
variation.
Diversity Small and gradual changes to influential genes over a long period of time can change a population to
create this on our planet?
Competitors In the game of evolution you don’t have to be the best you just have to be better than your…
Predators Moving on land allowed the first vertebrate to avoid this.
Available Evolution can modify existing structures but it has to work within the limits of what is…
Lower Both humans and other mammals have a larynx, humans can speak because our larynx sits ___ in the
throat area.
Fivehundred The number of genes that have been preserved over the 3.4 billion years of evolution.
Theory An accepted explanation based on a large number of observations and experimental results.
DNA Diversity begins with genetic variations here.
Mutation The primary source of variation for all life forms.
Typos Mutations are like these in the DNA coping process.
Gametes Mutations that are passed to offspring occur in these types of cells.
Switches Mutations in controlled regions or __, change the timing, location and level of gene activation.
environment Whether a mutation conveys an advantage, disadvantage, or is neutral depends on an
organism’s…
recombination The second source of variation that shuffles our genes during reproduction to create new
combinations.
Meiosis The cell division in which crossing over takes place.
Resources What the millions of different species on our plant compete for.
Best Natural selection favor species that are ___ suited for their environment
Selective The selection that has a goal in mind; to preserve a specific trait. Usually controlled by humans.
Artificialselection Another name for selective breeding.
CharlesDarwin Has been given credit for the term evolution.
Galapagosisland Where Darwin visited and gathered data to support the theory of evolution.
Finches The species that Darwin studied.
Beak The body structure Darwin studied.
Lived Darwin concluded the finches beaks changed based on where the finches…
Evidences Fossils, anatomy, embryo and DNA___ are these that suggest all living things are related.
Ancestor Fossils, anatomy, embryo and DNAare also suggest that all living things share a common…
phylogenetic Like a family tree this shows how all living things are related.
Vestigial A structure that use to have a purpose in the past environment but doesn’t serve a purpose any
longer.
Gills Both humans and fish have a series of pouches near the developing throat. In fish, these pouches
develop into…
Chimpanzees Humans are 98% related to this animal.