Homework 1. Cuttlefish's Evolution

University:
University Of Illinois at Chicago
Course:
BIOS 230 | Evolution and Ecology
Academic year:

2024
Views:

172

Pages:

6
Author:

Joe M.

a. My adaptive trait will be there camouflage. Cuttlefish possess chromatophores and special cells that give them the ability to change color to not only camouflage but also, communicate, and hunt with. b. The Cuttlefish most likely used its chromatophores more often, and in different ways. Which led it to it slowly being able to change color, and as it changed color it displayed more effectiveness in hunting, and camouflage. Which would mean they would not be seen by predators, Thus acquiring the ability to camouflage and change color. c. Using Darwin’s Theory we would say the cuttlefish got its color changing ability by - Variation – The Cuttlefish population had variant colors within each other. Habitability – The offspring of the cuttlefish that varied in color was inherited thus there being many more different colors of cuttlefish, leading to better camouflage. Overpopulation – There were more cuttlefish that are being born, meaning that there is competition over food and mating, and this would mean the best cuttlefish that would survive would be the ones that had the best color matching the environment. Competition – The cuttlefish with the best colors had a better chance of surviving and reproducing, thus leading to cuttlefish that could change color in order to camouflage. d. I myself believe Darwin's theory would be best as Natural Selection gives advantageous traits through inheritance. Lamarck’s Theory is not understandable, and valuable as Darwin’s due to it lacking inheritance, it is also less credited by modern biology then Darwin’s. (p^2) frequency of homozygous dominant individuals. (2pq) frequency of heterozygous individuals. (q^2) frequency of homozygous recessive individuals. p 82Pa 0.98 Round UP to 0.019 0 1 p a 1 0.99 02 0.01 240.99 0.01 0.0198 freaking of bowhead 0.4 recessive 0.0 proportionorkertrotious 2Pa 0.0198 moths Api.ua in V60 a 82 28 39.497 79.497 821 a 1 0.871 3 2440 0 129 B 2Pa 2 0.129 0.871 For 0.084 E 0 0.225 129 84 to notrotlous For a long