Summary: Biology 1002 Hrincevich Exam 1
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1 Biology 1002 Hrincevich Exam 1
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Eight Major Taxonomic Ranks
- Domain (the largest and most inclusive)
- Kingdom
- Phylum
- Class
- Order
- Family
- Genus
- Species (smallest, least inclusive)
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In a nested hierarchy, if there are multiple bubbles that feature everything but the other members, would this be representative of a clade?
No! It does not represent ALL of the organisms from that one ancestor. -
In what phylum are humans found?
Humans fit into the Deuterostomes. -
Biological Species Concept
Species are groups of interbreeding natural populations that are respectively isolated from other groups. This does not include asexually reproducing organisms. -
Phylogenetic Species Concept
Species are small diagnosable groups that contain all the descendants of a single ancestor, including asexually reproducing organisms. -
How do protists get nutrition?
They ingest food, absorb nutrients from around them, or exhibit photosynthesis -
How do protists absorb nutrients?
They decompose organic dead matter or become parasites. -
How do protists reproduce?
They reproduce asexually by mitosis or sexually with two protists exchanging genetic material. -
Water Molds (Oomycetes)
Decomposers in water and damp soil. Cause downy mildew in grapes, destroyed avocado trees, and led to the Irish potato famine. -
What are examples of the ancestors of plants?
Photosynthetic protists such as green algae and stoneworts. They both have chlorophyll, pigments, and cell walls made of cellulose.
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