Term
| what are the 5 levels of the environment in order from smallest to largest? |
|
Definition
1. organism
2. population
3. community
4. ecosystem
5. biome
**OPCEB** |
|
|
Term
|
Definition
A single living thing made up of cells
ex. an animal, a plant, a fungus or other living thing |
|
|
Term
|
Definition
A group of organisms of the same species that live in the same area.
ex.a population of lions, a population of cacti, a population of iguanas |
|
|
Term
|
Definition
All the populations that live and interact with each other in a particular place
ex. the Galapagos Island has cacti, iguanas, crabs, tortoises, fleas, etc. |
|
|
Term
|
Definition
The community of (biotic) living organisms, along with nonliving (abiotic) factors that make up an ecosystem.
ex.Communities of lions, wildebeests, gazelles, along with water, soil, sunlight and temperature that interact to form a stable system. |
|
|
Term
|
Definition
A region of Earth that has a particular climate and certain types of plants.
ex. savannah, tundra, desert, tropical forest, grassland |
|
|
Term
| What is an abiotic limiting factor? |
|
Definition
Temperature
Availability of water or minerals
Exposure to wind |
|
|
Term
| What is a biotic limiting factor? |
|
Definition
Competition
Predation
Parasitism |
|
|
Term
| What are pioneer species? |
|
Definition
| The first living things that move into a barren environment. |
|
|
Term
| What is primary succession? |
|
Definition
The establishment of a new biological community.
ex. It can occur after a glacier retreats, when little topsoil is present. |
|
|
Term
| What is secondary succession? |
|
Definition
Takes place after a major disturbance to the biological community in a stable community.
ex. It can occur if soil remains after a disturbance, such as a forest fire. |
|
|
Term
| What are examples of mutualism? |
|
Definition
The relationship between two species that benefit both.
ex. Birds and bees get food from the nectar of a flower. The flowers get pollen from other flowers, which is needed to make seeds. The seeds are then moved to new ground by the animals. |
|
|
Term
| What are examples of parasitism? |
|
Definition
The relationship between 2 species where a small partner can harm a much larger host. Benefits one, harms the other.
ex.A tick, lice and mites can live on or attach to an animal's skin. |
|
|
Term
| What are examples of commensalism? |
|
Definition
The relationship between 2 species in which one species benefits while the other is not affected.
ex. small fish and jellyfish swim together. The jellyfish protect the fish from predators. Jellyfish are not affected. |
|
|
Term
| What are examples of symbiosis? |
|
Definition
The relationship between 2 species who live together in a close relationship.
ex. mutualism-both benefit :) :)
commensalism-benefits one, other not affected :) :|
parasitism-benefits one, harms the other :) :(
ex. clown fish and anemone |
|
|
Term
| 5 characteristics/facts about Mono Lake |
|
Definition
1. Most productive ecosystem in the North American continent.
2.Located in California
3. largest lake in California
4.Oldest lake in the U.S.
5.85%-90% California Seagulls breed at Mono lake |
|
|
Term
| Explain the life cycle of a milkweed bug |
|
Definition
| They live in milkweed plants, in nature. In class, they live in bags with twigs, water and sunflower seeds. The eggs are laid in clutches, or clusters of 20 or more eggs. It takes 5-7 days to hatch. After a few days, the nymph (immature bug) will grow out of its exoskeleton, molting its outgrown shell, and continue to eat and grow. The bug molts 5 times before it becomes a fully mature adult. The 5 nymphal stages are called an instar and takes 4-8 weeks. This is called incomplete metamorphosis. A week after adulthood, the bugs will mate and the female will lay eggs. The life cycle is about 2 months. |
|
|
Term
| 3 causes for population growth? |
|
Definition
1. increase in resources
2. increase in birthrate
3.decrease in predators |
|
|
Term
| 3 causes for population decline? |
|
Definition
1. decrease in resources
2. decrease in birthrate
3. increase in predators |
|
|
Term
| What is a carrying capacity? |
|
Definition
The maximum size of a population that can be supported by an environment.
-when a population reaches a state where it can no longer grow. |
|
|
Term
|
Definition
| A group of living things that are closely related and are capable of mating with one another to produce fertile offspring. (reproduce and breed) |
|
|
Term
|
Definition
| The natural home or environment in which a living thing gets all it needs to live. |
|
|
Term
|
Definition
| The role an organism plays in a habitat. |
|
|
Term
|
Definition
The struggle between a population.
--between two or more living things that depend on the same limited resource. |
|
|
Term
|
Definition
Organisms working together.
-- the interaction of 2 or more living things working together. |
|
|
Term
| Give a brief explanation on how habitats support populations. |
|
Definition
| A habitat gives food, water and living space to a population. Populations need adequate food and proper nutrition to grow. They also need water to survive. they also need adequate living space to obtain food, water and to live and breed. |
|
|
Term
| ESSAY: Why is it important to study several different populations and ecosystems? Explain why it is important now and for the future? |
|
Definition
(Examples:Jane Goodall's work & Mono lake)
It is important to study the changes that occur over time. The biotic and abiotic factors may be affected in the ecosystem and that can affect the behavior and population of the organisms. In Jane Goodall's research, she observed 3 generations of chimps and compared their behavior over time. |
|
|
