1 / 5

1) stasis

1) stasis. A) is an essential part of the gradualist model of evolution B) refers to morphological stasis, not molecular stasis C) suggests strong directional selection D) is more likely in dueterostomes E) none of the above. 2) You are:. A) a deuterostome B) a protostome

laszlo
Download Presentation

1) stasis

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 1) stasis • A) is an essential part of the gradualist model of evolution • B) refers to morphological stasis, not molecular stasis • C) suggests strong directional selection • D) is more likely in dueterostomes • E) none of the above

  2. 2) You are: • A) a deuterostome • B) a protostome • C) an acoelomate • D) radially symmetrical • E) none of the above

  3. 3) The “age of mammals” • A) is the mesozoic • B) started with an adaptive radiation following the demise of the dinosaurs • C) is the cenozoic • D) is about 300 million years old • E) B and C

  4. 4) The phanerozoic • A) is the period of time before the Cambrian explosion • B) consists of the Paleozoic, the Mesozoic, and the Cenozoic • C) was when atmospheric oxygen levels first started to rise • D) resulted from the end-Permian extinction • E) killed the dinosaurs

  5. 5) Animal phyla • A) are distinguished by differences in embryonic development and adult body plan • B) were mostly all present by about 535 million years ago • C) probably diverged during or prior to the cambrian explosion • D) all of the above

More Related