BIOB50H3 Ecology Chapter 1.docx

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Department
Biological Sciences
Course
BIOB50H3
Professor
Marc Cadotte
Semester
Fall

Description
BIOB50H3 Ecology Chapter 1 -around 5-20 million species on Earth -about 100 of the species will extinct every thousand years -large vertebrates tend to extinct more than small ones major cause: global warming, vegetation/forest is removed, makes it harder for them to survive Biodiversity: there is variability among species, diversity in ecosystem -shows genetic differences how organisms look/function Why conserve biodiversity? -medicines that we use come from organisms -need to make chemical products -food we eat allows us to learn from different species (how species do thingsstrategies) e.g. spiders and their webs -organisms also provide services -pollinators (bees), pest control -wetland circulates water carbon dioxide and oxygen -biodiversity helps us understand ourselves Ecology- scientific study of interactions between organisms and their environment Environmental science- incorporat
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