<span>a. They have homologous structures because they have a common ancestor.
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Answer:
500-million-year-old fossil found in BC is ancient ancestor of spiders and scorpions. Palaeontologists in British Columbia have found a fossil of the oldest known ancestor of scorpions and spiders.
Answer:
B. Endophytes that produce toxins can be poisonous to grazing animals.
30. Egg and Sperm
31. Haploid
32. Zygote
33. Diploid
34. Organism/ Embryo
35. Crossing Over
36. Tetrad
37. Asexual, Sexual
38. Both
39. Body
40. Sex Cell/ Gamete
41. Pro Phase 1
41. Genetic variation amongst daughter cells (4 genetically unique daughter cells)
42. In Anaphase 1, homologous chromosomes separate to each side of the cell, and the centromere is intact while in Anaphase 2, the sister chromatids separate and the centromere splits into two which result in two separate chromatids.
Hope this helps and you get your grade up lol
