I need help with questions 7 and 8 I think what I circled is correct.pdf
- 1. I need help with questions 7 and 8 I think what I circled is correct. It am not sure please help the diamond shaped graph goes to question 7 7. Retia mirabilia (singular rete mirabile) are vascular bundles that allow fish to secrete O2. In the above figure, red branches indicate lineages with choroid blue branches indicate those with ladder retia, and white branches indicate absence of Assuming the phylogeny evolution have been accurately inferred, we can infer that: a) Swimbladder retia predate choroid retia b) Gains of swimbladder retia primarily took place in lineages that already had choroid retia c) Loss of choroid retia causes gain of swimbladder retia Choroid retia have been gained more often than swimbladder retia. 8. These trees for six different groups of organisms for (A) tree frogs, (B) caecilians, (c) uropeltid snakes, (D) freshwater fishes, (E) freshwater shrimps, and (F) crabs are all colored based on whether the species come mainland India or Sri Lanka. Assuming these trees and the reconstruction of ancestral from accurate, which of the trees includes a single well-supporte geographic distributions are migration from Sri Lanka back to southern India? a) A, F b) B, C c) C d) A, B Solution 7.The correct answer is:b.Gains of swimbladder retia primarily took place in lineages that already had choroid retia. 8.The correct answer is:a. A ,F Reason: The above answers are the information that can be collected through the graphs mentioned