A group of similar species that share recent common ancestry is a(n) ____
a. class
b. order
c. species
d. kingdom
e. genus
e
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The ten phyla of living land plants include:
A. (1) liverworts, (2) hornworts, (3) mosses, (4) lycophytes, (5) pteridophytes, (6) cycads, (7) ginkgos, (8) conifers, (9) gnetophytes, and (10) angiosperms B. (1) liverworts, (2) hornworts, (3) mosses, (4) lycophytes, (5) pteridophytes, (6) cycads, (7) ginkgos, (8) conifers, (9) gnetophytes, and (10) flowering plants C. (1) Hepatophyta, (2) Anthocerophyta, (3) Bryophyta, (4) Lycopodiophyta, (5) Pteridophyta, (6) Cycadophyta, (7) Ginkgophyta, (8) Coniferophyta, (9) Gnetophyta, and (10) Anthophtya D. (1) liverworts, (2) hornworts, (3) mosses, (4) lycophytes, (5) ferns, horsetails, and whisk-ferns, (6) cycads, (7) ginkgos, (8) conifers, (9) gnetophytes, and (10) flowering plants E. all the other choices provided are correct.
Classical zonation patterns in the intertidal where space is limited result from:
1.high recruitment 2.low recruitment
In determining the evolutionary relationships of current species, one needs to ________
A) read along the tree tips: Species closer to each other are always more closely related B) read along the tree tips: Species shown at the tips are arranged in patterns reflecting which groups evolved from others C) read "back" to nodes connecting species to determine common ancestry D) None of the above is an accurate way to read phylogenetic trees.
Which is a member of the domain Archaea?
A) gram-positive bacteria B) methanogens C) spirochetes D) chlamydias