What happens when people abandon a city? Nature takes over. Example: From farmland to forest.
- Abandoned farm : the pionner species take place things like grass, insects, adn crabgrass.
- Second a third year: tall weeds, small mammals like mice and rabbits, insects, and eatin-birds seed and insect form a pionner community.
- Four to six years: more birds are join to the community, pine trees, small mammals like opossums adn skunks.
- Twenty-five yars later: a pine forest has replaced the old farm field. Seeds of a decidious trees such as maple, hickory, larger animal like raccons and foxes.
- One hundread years later: the forest is now mostly decidious trees. This trees are the habits of many animals like birds and small mammals like squirrels. Deers, raccons, and foxes also live in the forest.
The gradual replacement of one coummunity bu another is called ecological succesion. The ecological succesion can begin in two different kinds of places. It can begin where community already exists. Ecological succesion in a place where a community alraedy exist is called secondary succesion. The ecological succesion can also happen where thre few, if any, living things. This is called primary succesion.
All the animals need to adapt to their ecosysytems, so here you will see s about their ecosystems:
Anything that controls the growth or survival of a population is called a limiting factor. Some limitings factors are nonliving: sunlight, wind, water, and tempreture. How livingyhings survivr in harsh enviroment? First is adaptation are the characteristict that haelp an organism survive in its enviroment. The organism interact in different ways, this is called symbiosis is the nature relarionship between two kinds of organism that last over a period of time. They are the Mutualism, Parasitism, and Commensalism:
- Mutualism: is the ralationship between two organism that both are benefits, example: yucca trees and yucca moths depend on each other for survival, each helps the other reproduce.
- Parasitism: a ralationship in which one kind of organism lives on or in the another organism and may harm that organism. The organism that live on or in other organisms are called parasites. Example: dog and the flea.
- Commensalism: the ralationship where organism benefits from another without harming or helping. Example: orchids benefit from their position on the trunks of trees.
In the 5 grade A and B is a debate about the question: are the Panamenias taking care of the enviroment? They are two teams AGREE (I'm agree) and DESAGREE. I AGREE because her in Panam are about 14 national park that take care of our country example:
- Altos de Campana National park.
- Baru Volacano National park
- Chagres National park
- Metrapolitan National park
- Soberania National Park
- Portobelo National park
SO all this is goin to be talk in class. The others you can also answer this questions. GO GREEN!!!!!
Examples of cycle important in the planet:
- Water cycle: the continuous movement of water between Earth's surface and the air, changing from liquid to as to liquid. Here in the water cycle alsso we find the freezing and melting point You can start in any place in tis case I gonna start in evaporation-can be salty and fresh water: salty= beach, ocean etc. they evaporate more fast. 1. evaporation: liquid to gas, heat is absorb. 2.condesation: gas to liquid 3. precipitation can be. snow, rain, hail,sleet 3. freezing: liquid to solid the heat is released. 4. melting: solid to liquid the heat is absorb.Also happen the runoff and transpiration that when the plants released the water that they have (they evaporate)
- Carbon cycle: the continuous transfer of carbon between the atmosphere and living things. Here you see the oxygen and carbon dioxide in the case of the plants they take the CO2 and produce O2. A car exhaust produce CO2 that is sometime very bad in our enviroment, death decay storage produce CO2 animal and photosynthisis produce oxygen.
- Nitrogen cycle: the transfer of nitrogen from the atmosphere to plants and back to the atmosphere and directly into plants again, they start with the descomposition of animals or plants then came the ammonia, the bacteria, nitrites go to the plants, the plants absorb the nitrites also some animals then the denitrifying bacteria the go to the atmosphere (the air) and start again.
The food chain is the path of energy in food from one organism to another. And the food webs are overpalling food chains in a community. In this are the carnivore ( meat eater ) herbivore ( plant eater ) omnivore ( meat and plant eater ). In this ccle are the predetors and the pray in the case of the meat eater.
1.In the food chain, they always start with the Sun then it passes the energy to the producer can be ( grass, trees, and those things, plants ) then came the consumer an insect as an example, then came another consumer example and frog, another consumer example a snake, then came another consumer example an eagle the this animal descomposed.
2.In the food webs is differen because, as an example the rabbit eat grass but the mice also can eat also insect, the the frog eat grasshopper but it can eat other insect, so this means that dont only one have an especific food some can eat the same but they are differebt animals that eat it.
Some animals have the ability to be camuflage to dont be a easy prey like the iguana when it is smal they camuflage with the leaves and when they became bigger they camuflage with the trees so imagine in the forest you must dont see any animal but remeber hey are camuflage.
In my conclusion I think that this is important to us because people also is include in this so we need to know so we need to know a little of all. REMEMBER GO GREEN!
The ecosystem that is all the living things and nonliving things in an area interacting whit each other, is divided in two: biotic factor and abiotic factor.
- In the biotic factor we have all the living things example. animals ( dog, birds, lions etc. ), plants are divided in vascular and non vascular ( trees, flowers, grass etc. ), bacteria ( bioluminescent bacteria ) , fungi ( the mushrooms ), protist ( green algea, diatmos ).
- And abiotic are the nonliving things exaple: temperature, air, minerals, rocks, water, light, weather.
If we dont take care of the animals and they enviroment we can die because for example if the frogs extiguish the insects such as the mosquitos and others can produce disease and all these happen because the fro extinguish imagin that this happen ? and DISASTER true or false? TRUE, and only ONE imagine.
In my conclusion I think that the only recommedation that I give to you is to take care of our planet and what is in it is not only people also animals, plants and all the living things ad also non living things. Remember GO GREEN !
Do you know how energy is composed ? It is composed by food+Oxygen= Energy, all this together is= transpiration. A type of energy is (an example) fossil fuels but the fossil fuels pollute so for this exist de Alternative sources of energy. This type of energy do not pollute: some examples of tis are the
- Modern waterwheels: water energy. A hidroelectric plant uses moving water to produce electricity.
- Harnessing the wind: wind energy.
- In Earth's surface: geothermal energy.
- Solar energy: solar panels.
The edum corns produce gas methane.
For example here in Panama we present the water energy in the hidrolectric for example AES, La estrella etc.
How we can conserve Energy?
1. Using the alternativesources of energy. However the plant matter and animals wastes or other remains-called biomass can be used as a renewable energu source, plant and animal waste that might wind ups aas garbage can be processed to form fuel. Woa! In me conclusion i think that we must used this alternative sources of energy, also we dont need to use the fossil fuels because this pollute a lot so WE NEED TAKE of OUR planet. GO green!!!
