Grade 11 Biology Study Notes
SBI3U1-04 Final Exam Study Notes
Unit 1: Diversity of Living Things
1.1 Importance of Biodiversity
Spotlight on Honeybees
Very important, pollinate flowers allowing plants to reproduce
Play vital role in food chain, if they die, all organisms that rely on them will die as well
Dying because of pesticides, parasitic Varroa mite (infects beehives and sucks of bees’ blood), the Israeli acute paralysis virus (immobilizes and kill bees)
No genetic diversity = Less resistant to parasites
Biodiversity: variety of life in the world, product of millions of years of evolution, adaptation
Genetic Diversity: sum of all the different forms of genes present in species
Species: population whose members can breed freely in nature and produce fertile offspring
Hereditary characteristics make an organism unique and ensures survival of species, by allowing adaptation
Farmers who grow genetically similar crops to use the same equipment, called monocultures, have no biodiversity, make them susceptible to diseases and pathogens (fungi rust)
Species Diversity: variety of species and relative abundance of the species in an area
The more species, the more complicated and robust, allowing survival in environmental changes
Each species has its own contributions
Species
Description
Sulfolobus archaea
Live in hot springs, mini organisms
Sea wasp/Box jellyfish
Live in tropical oceans
Giant sequoia trees
Grow in North America, Europe, Australia and New Zealand
Blue green algae
Live everywhere, ocean, soil, bare rock, hair of sloth
Ants
Everywhere except for Antarctica
Sea turtles
Hatch on beaches, live in oceans
Blue Jay
North America, Ontario
Ecosystem Diversity: diverse range of habitats, various organisms that live in the habitats, relationships that connect them
Not limited to large habitats, even soil has a huge biodiversity
Some animals are “walking ecosystems” and have a symbiotic relationship with micro-organisms
All parts of
Unit 1: Diversity of Living Things
1.1 Importance of Biodiversity
Spotlight on Honeybees
Very important, pollinate flowers allowing plants to reproduce
Play vital role in food chain, if they die, all organisms that rely on them will die as well
Dying because of pesticides, parasitic Varroa mite (infects beehives and sucks of bees’ blood), the Israeli acute paralysis virus (immobilizes and kill bees)
No genetic diversity = Less resistant to parasites
Biodiversity: variety of life in the world, product of millions of years of evolution, adaptation
Genetic Diversity: sum of all the different forms of genes present in species
Species: population whose members can breed freely in nature and produce fertile offspring
Hereditary characteristics make an organism unique and ensures survival of species, by allowing adaptation
Farmers who grow genetically similar crops to use the same equipment, called monocultures, have no biodiversity, make them susceptible to diseases and pathogens (fungi rust)
Species Diversity: variety of species and relative abundance of the species in an area
The more species, the more complicated and robust, allowing survival in environmental changes
Each species has its own contributions
Species
Description
Sulfolobus archaea
Live in hot springs, mini organisms
Sea wasp/Box jellyfish
Live in tropical oceans
Giant sequoia trees
Grow in North America, Europe, Australia and New Zealand
Blue green algae
Live everywhere, ocean, soil, bare rock, hair of sloth
Ants
Everywhere except for Antarctica
Sea turtles
Hatch on beaches, live in oceans
Blue Jay
North America, Ontario
Ecosystem Diversity: diverse range of habitats, various organisms that live in the habitats, relationships that connect them
Not limited to large habitats, even soil has a huge biodiversity
Some animals are “walking ecosystems” and have a symbiotic relationship with micro-organisms
All parts of