Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:1. Which organism is the closest currently living relative (not an ancestor) of item 8?
Item 11
Item 10
Ca
Item 6
Item 7
2. Which organisms are the currently living descendants of Item 3?
Items 1 and 2 only
All endpoints on the tree
Item 1 only
Item 2 only
Items 1, 2, 3, 4, and 5 only
3. True or False: item 11 represents the ancestor of multiple currently-living species.
4. Which of these choices presents the three narrowest taxa (the most specific groups of rela
order from broadest to narrowest?

Transcribed Image Text:3)
Phylogenetic tree of selected bacteria
Numbers at the end of lines indicate
the species represented by that endpoint
1)
Gram-negative
bacteria
4
8)
Gram-positive
bacteria
5
10
11
Ancestor of all Bacteria
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