BIOL 2903 Lecture 1: Natural History Lecture 1

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Total collection of all living things in a given area= biodiversity: biological diversity. A total number and variety of living things. Ontario"s biodiversity: how many species in ontario when you add them up, reptiles and amphibians. Dragonhunter: eats other dragonflies and are common. Total number of invertabrates= tens of thousands: plants. Number of ferns (vascular plants= 3,00 species) Size (because ontario is big, more than 1 million km) Great range of abiotic factors - abiotic (nonliving) Rocks: rocks are made of minerals that affect the. The rock under any given area is called the. These sedimentary rocks are layered and formed by sediments, once there was water and sediments were compressed and turned into a bedrock. Sedimentary rocks are relatively young rocks from 400-500 million years old. This rock is rich in calcium and is relatively soft and basic in ph. Basic in ph which means it"s not.

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