Biology Homework Help

1) In your assigned readings, you learned about endosymbiosis, which is the major theory describing the evolution of eukaryotic cells from prokaryotic organisms. Identify any other theories that have been used to account for this process and comment on which you think is the most probable. How is evidence used to support this theory? Explain your position.

2) Organisms reproduce by both sexual and asexual means. Sexual reproduction occurs with haploid gametes fuse to form a diploid zygote. Asexual reproduction does not require the formation of gametes. Some organisms reproduce both sexually and asexually during different stages of their life cycle.

For the purposes of this assignment, you are to choose an organism that reproduces both sexually and asexually. Write a 2-3 page (500 – 750 words, 12 point font) paper including the following elements. Be sure to compose your work with your own words. Do not copy and paste from any source.

• Briefly, compare sexual and asexual reproduction.
• What are the evolutionary advantages for an organism to reproduce both asexually and sexually?
• Describe the reproductive cycle of the organism you have selected.
• How does this organism use both forms of reproduction as an adaptation?