Upgrade to remove ads
BC Science 10: Chapter 3
Terms in this set (34)
Best-adapted members of a species survive to reproduce; their traits are passed down as abiotic + biotic factors of their environment change.
The change from a common ancestor into a number of different species of different niches.
The changes that take place over time in the types of organisms that live in an area.
Occurs in areas where there is no soil.
1. Wind and rain carry lichen spores to these areas
2. Lichens obtain nutrients by breaking down rock
3. Lichens decay and add organic matter to developing soil
4. Over 100's of years, weathering of rocks + decay of pioneer species lead to soil formation
The first organisms to survive and reproduce in an area.
The final development of an ecosystem. e.g. from a hardened mound of ashes to a grassland.
Occurs as a result of a disturbance to an area that's already home to organisms. Secondary Succession is faster than primary succession because organisms + nutrients already exist in soil.
Causes soil erosion, pollution, and disease when toxins + bacteria from sewage enter drinking water.
Causes living organisms die due to lack of water
Causes succession in forests because insects destroy older/weaker trees.
Causes ocean waves to destroy habitats and carry salt water onto shore to change soil composition.
The ability of an ecosystem to sustain ecological processes.
The ways we use the land around us for building stuff.
Resource Use/Resource Exploitation
The ways we obtain and use natural resources.
Traditional Ecological Knowledge
The First Nations' knowledge of plants, animals, and natural occurrences in their environment. Includes:
local climates, natural resources, biotic + abiotic traits, animal + plant lifecycles.
Human Activity: Taking over land to build stuff.
How it affects ecosystems: Habitats are destroyed and cannot support species that live there.
Human Activity: Building stuff and dividing natural ecosystems into smaller fragments.
How it affects ecosystems: Plant pollination, seed spreading, wildlife movement, and reproduction are affected.
Human Activity: Being a dick by cutting trees and not replanting them.
How it affects ecosystems: Animals and plants died for you, *******.
Human Activity: Clearing land to leave it bare as water + wind erode top-soil.
How it affects ecosystems: Organic matter, water, and nutrients are removed w/ the top-soil, reducing plant growth.
Human Activity: Farm machines and grazing animals squeeze soil together.
How it affects ecosystems: Lowers movement of air, water, and organisms in soil, reducing growth of plants and increasing chemical run off.
Human Activity: Product of resource exploitation like mining, introduces toxins.
How it affects ecosystems: Toxins in harmful amounts kill more plants and animals.
Other important shit: Arsenic, Lead, Uranium, Zinc + Calcium.
Human Activity: Extracting resources until it's depleted.
How it affects ecosystems: Food webs are affected and organisms are weakened + not able to adapt well. Extinction can result.
Removing small plugs of soil to improve air + water flow in the soil.
The plants and animals that naturally inhabit an area.
The species that have been introduced into an ecosystem by humans.
Introduced Species that can dramatically change or destroy ecosystems.
Outcompete native birds for nesting sites to cause decreases in their populations. Barn owls can keep European Starling populations low.
Brought into BC as frog leg food source. Breeds rapidly to swarm habitats. Very large and aggressive and attack native species.
Grows to form roofs over waterways to block sunlight from organisms down below. It spreads by boat traffic because small pieces easily regrow.
Eats lots of food including native species.
Invasive species reproduce quick and are aggressive. They out-compete native species for food and habitat
Introduced predators have larger impact on prey because prey do not have adaptations to escape/fight them
Disease and Parasites
Parasites/disease-causing virus can weaken immune system of native species.
Invasive species make a natural habitat unsuitable for native species
This set is often in folders with...
BC Science 10 Provincial Notes
BC Science 10 Chapter 7
BC Science 10 Chapter 12
BC Science 10 Chapter 3
You might also like...
Biology Unit 3 Test
BC Science 10 Chapter 3 Vocabulary
ESS 108 CNR Biosphere: Plants and Animals
Other sets by this creator
SFU BPK 110 - Post Midterm to Final
CA 135 midterm
BC Science 10: Chapter 2
BC Science 10: Chapter 1 + 2
Other Quizlet sets
6.3 and 4.3
Earth and Environment Final 2
Ecology Test - Cycles