Biology, 09.10.2019 03:00 Baby010391
Because they are morphologically simple, psilotophyta (whisk ferns) have traditionally been thought to be a basal group in the radiation of land plants. molecular phylogenies have challenged this hypothesis and support the alternative hypothesis that
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Biology, 22.06.2019 09:30
What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid
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Biology, 22.06.2019 10:30
Natural selection changes allele frequencies because some survive and reproduce more successfully than others.
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Because they are morphologically simple, psilotophyta (whisk ferns) have traditionally been thought...
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