BISC 102 Study Guide - Midterm Guide: Sporophyte, Cambrian Explosion, Zygosity
1 Nov 2020
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Describe a trait that would be adaptive for an organism living in a specific environment. Structural, physiological and biological traits that help an organism survive and reproduce in a particular environment. For example, a bunny with white fur living in an environment with a lot of snow fall. Describe one piece of evidence that supports your answer. Late precambrian oxygenation cambrian explosion of marine animals: a. Rapid and dramatic appearance of diverse and complex marine animals in the fossil records: b. Soft bodied biota no evidence of skeletal hard parts. Not ancestral to any living marine animals or plants: define the term embryophyte. Explain why this feature was a key adaptation for life on land. Embryophyte: green plants that form vegetation on earth. The sporophyte embryo is retained and nourished by the mother plant: distinguish between ancestral and derived traits, illustrating with an example. Derived is when a trait shows up that was not present in a common ancestor.
