BIOLOGY: HOW LIFE WORKS(EBK+AHIEVE)
3rd Edition
ISBN: 9781319230203
Author: Morris
Publisher: MAC HIGHER
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Chapter 25.3, Problem 7SAQ
Summary Introduction
Around 1.6 billion years ago the last common ancestor of plants and animals lived and it was considered as a unicellular organism (neither animal nor plant itself). It is likely that plants and animals evolved separately into multi celled organisms however, the basic cellular mechanisms are homologous.
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Do plants and animals have a common multicellular ancestor?
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BIOLOGY: HOW LIFE WORKS(EBK+AHIEVE)
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- What major characteristic of green algae (Chlorophyta) supports the hypothesis that they are ancestral to flowering plants (Anthophyta)?arrow_forwardWhy green algae is called ancestors of land plants?arrow_forwardWhich taxon would have a more recent common ancestor, a phylum or an order?arrow_forward
- What structures likely encapsulated molecules creating primitive cells?arrow_forwardThe earliest ancestor of land plants resembled: A)Grasses B)Red algae C)Green algae D)Ferns E)Pine treesarrow_forwardWHICH KINGDOM DOES THIS UNKNOWN ORGANISM BELONGS TO: IT HAS THE FOLLOWING FEATURES: NUCLEUS, MITOCHONDRIA, CELLS, CELL WALL MADE OF CHITIN, DECOMPOSERarrow_forward
- Why are green algae placed in the Protista while plants are placed in a separate kingdom? a. Green algae have a cell wall of chitin, while plants have cell walls of cellulose. b. Plants enclose and protect the embryo within the seed, while green algae do not. c. The green algae use chlorophyll a, while plants use chlorophyll d. Algae reproduce only asexually, while plants reproduce sexually.arrow_forwardIn what way was the evolution of eukaryotic cells linked to the increase in the oxygen concentration in the atmosphere that occurred during the Precambrian?arrow_forwarddescribe a scenario for the evolutionary origin of protist chloroplasts?arrow_forward
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Endosymbiotic Theory; Author: Amoeba Sisters;https://www.youtube.com/watch?v=FGnS-Xk0ZqU;License: Standard Youtube License