Across
- 3. He best known for his theory of evolution by the means of natural selection.
- 7. Humans and ___________ share our most recent ancestor and evolved separately.
- 11. One strong line of evidence that supports the theory of evolution is explaining remnants of the past such as bones, teeth, shells, imprint of a species’ feet…. These are known as ________
- 12. This type of reproduction is fast and creates clones
- 16. The reason why an arctic hare and a jackrabbit have different types of adaptations is they are from two different __________
- 17. This line of evidence uses for similarities between different organisms’ anatomy to support the theory of evolution is called, ____________ anatomy.
- 20. A classic example for natural selection was in England and involved the species _______ moths
- 22. The science of examining the first stages of life is __________ and similarities between the embryos of different species is used to support the theory of evolution.
- 24. Many students not realize that mutations can be ___________ not just harmful.
- 26. body structures left behind from an ancestor that is no longer needed in today’s relative are known as ___________ organs
- 27. By injecting_______ many snakes are using the defense strategy of chemical defense.
- 28. Factors present in an environment that challenge a species’ existence are know as a selective _________.
- 30. Did humans evolve from chimpanzees?
- 31. Differences in traits or genetic __________ must be present within a species for natural selection to occur
- 33. This type of adaptation includes: ear size, placement of eyes, poison, hard shell….
- 37. The three part building block of DNA is called _______
- 39. This is a type of behavioral adaptation found in some birds
- 40. The female part of the flower
- 41. A ______ square is a tool used to find the probability of offspring’s genotypes
Down
- 1. In this type of defense strategy the prey blends in with its environment
- 2. Segments of DNA that codes for a proteins that eventually create the trait
- 3. An advantage of sexual reproduction is it leads to greater genetic ________
- 4. Traits that increase the chances of the species’ survival in its environment are known as ________.
- 5. A type of asexual that involves splitting into two is called binary _________
- 6. The allele that always is expressed when present is the ___________ allele
- 8. This type of defense strategy a non-dangerous species might “act” /”look” like another species that is dangerous
- 9. Before cells split to reproduce they must copy or________the DNA.
- 10. Food, predators, disease, precipitation, pollution can all the __________ pressures thar determine natural selection.
- 13. This type of mutation is passed down to offspring in the the sperm, egg or both.
- 14. These bonds break during the first part of DNA replication
- 15. You have 23 pairs of these, 23 from Mom and 23 from Dad.
- 18. The big conclusion that the theory of evolution makes is all life on Earth came from one common___________
- 19. The phenotype of a flower might be __________
- 21. You can get this type of mutation from too much sunlight, pollution or even having a poor diet
- 23. The part of the pistil that holds the eggs is called the _______
- 25. The moths that were naturally selected prior to the industrial revolution were ______ in color
- 28. Mendel was the first to use _______ to figure out likelihood offspring’s genotypes
- 29. If the genotype is Tt we might explain it as _______
- 32. The only way to show the recessive form of the trait is to have two recessive ______
- 34. Organisms with the traits that are more successful in their environment survive, reproduce and pass down these traits to their offspring is known as natural _________
- 35. The type of reproduction that can occur in both imperfect and perfect flowers is ____
- 36. A type of asexual reproduction that can occur in plants is vegetative________
- 38. The male gamete