Evaluate the differences between the two images, and consider the significance of those differences. What evolutionary question is better addressed by the ring-shaped phylogenetic tree (a) as opposed to the more typical, single-trunk phylogenetic tree (b)? a What was the single organism from which all other forms of life on Earth arose? b Did animals evolve from fungi? c In which species of eukaryote did chloroplasts first appear? d Did horizontal gene transfer likely influence the evolution of the three domains of life?
Added by Jose M.
Close
Step 1
Compare the two images. a. The ring-shaped phylogenetic tree is more representative of the evolutionary relationships between organisms. Show more…
Show all steps
Your feedback will help us improve your experience
Ashley Starks and 84 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Examine the chart below and the corresponding phylogenetic tree to answer the questions. i. Which species represents the outgroup? Why? ii. Define derived traits. What derived traits are being used as evidence for common ancestry in the phylogenetic tree? iii. What derived traits are shared between species B and C? iv. What derived traits are shared between species C and D?
Nibaal K.
Using the evolutionary trees in this chapter, compare the following groups. For each comparison, what features are similar among the groups? What features are different? (a) Compare cnidarians to sponges and to the clade containing flatworms, mollusks, and annelids. (b) Compare flatworms to cnidarians, other protostomes, and deuterostomes. (c) Compare mollusks to flatworms and annelids. (d) Compare nematodes to other protostomes in general and to arthropods in particular. (e) Compare echinoderms to protostomes and to chordates.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD