Scelta multipla
Which of the following characteristics is associated with early Homo species?
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21. Evolution
Introduction to Evolution and Natural Selection
Scelta multipla
Which of the following is thought to be the most closely related to the common animal ancestor?
A
Plants
B
Choanoflagellates
C
Bacteria
D
Fungi
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Understand the concept of a common ancestor: In evolutionary biology, a common ancestor refers to the most recent individual from which all organisms in a group are directly descended.
Identify the groups mentioned: The problem lists plants, choanoflagellates, bacteria, and fungi as options.
Consider the evolutionary relationships: Choanoflagellates are a group of free-living unicellular and colonial flagellate eukaryotes considered to be the closest living relatives of the animals.
Analyze the characteristics: Choanoflagellates share several features with animals, such as similar cell signaling and adhesion genes, which are not found in plants, bacteria, or fungi.
Conclude based on evolutionary evidence: Based on genetic and morphological evidence, choanoflagellates are thought to be the most closely related to the common ancestor of animals, making them the correct choice.
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