Ecosystems
State the two main components/factors within an ecosystem.
What are Biotic and Abiotic factors?
Name the three types of adaptations.
1. Physical, 2. Chemical, 3. Behavioural.
An example for Sand Dunes…
Ex. Water loss through stomata (example of high risk of transpiration).
Define Ecological Niches
The role of a species in its ecosystem
Define nutrition
Process that organisms undergo to get food and nutrients from their environment
Define an ecosystem, based on the b4 notes.
All living/biotic and ABIOTIC factors in one area at one time.
An Adaptation Is…
Genetic trait(s) that increase an organism’s fitness within its environment, increasing survival and reproduction.
Ex. Toxins, Venoms, increased metabolic rate, and decreased urine.
State the biotic interactions within ecological niches.
Predator and Prey relationships & Feeding-related needs.
State the two different types of nutrition
State the four different ecosystems/biomes.
1. Sand Dunes, 2. Desert, 3. Rainforest, 4. Swamps.
Example concept of adaptations?
Survival of the Fittest &/or Natural Selection
An example of Coral Reefs…
Ex. Zooxanthellae algae of the polyps that live and photosynthesize (correlation of polyp with Calcium Carbonate and increase CO2 causes a decrease in pH).
How does a niche differ from a habitat in ecology?
habitat= physical environment where an organism lives; niche= organism’s role within the environment.
What is the main difference between autotrophs and heterotrophs?
autotrophs: can make their own carbon compounds (glucose) vs heterotroph: rely on other organisms to obtain carbon compounds/glucose.
State and connect the four ecosystems/biomes from question $600 with their challenges.
1. Sand Dunes: Dry and Windy- high risk of transpiration. 2. Desert: Dry and Hot- shading. 3. Rainforest: Strong heavy rain and dark understory- access to sunlight. 4. Swamps: Salts and Minerals, Wet- osmosis (water balance).
Elaborate on the explanation of the there types of adaptations.
1. Physical: Body PART (visible), 2. Chemical: Function, internal process, 3. Behavioral: Action.
An example of chemoautotrophs…
Ex. Fe, Sulphur. These both get energy from oxidizing chemicals.
Give an example of a species that underwent species differentiation/niche adaptations because of competition
Darwin’s Finches of the Galapagos Islands, they gained new beak shapes to adapt to eat different types of seeds.
State the three adaptations for nutrition.
1. Physical: dentition/teeth, 2. Chemical: Poisons and Venoms, 3. Behavioral: Hunting + Gathering actions.
Give an example of an abiotic factor that directly affects primary productivity.
Nonliving factors consist of pH, temperature, sunlight, light intensity, etc.
Fill in the blanks: adaptations determine …………………………… are tolerable which then ………………………...
Adaptations determine which abiotic environments are tolerable which then causes the species distribution.
An example of Dentition…
What is a fundamental niche?
Range of tolerance- in what abiotic conditions could organisms survive in (Rarely reality, theorized).
Give two extra types of nutrition in both autotrophs and heterotrophs.
Autotrophs: Photoautotrophs and chemoautotrophs. Heterotrophs: Holozoic and Saprotrophic nutrition.