SECTION 1: LIVING EARTH

	1.	The three parts of Earth included in the biosphere are:
			1. The air (atmosphere)
			2. The earth (soil)
			3. The water (oceans, lakes, rivers, etc.)

	2.	Ecology is the scientific study of animals and their interactions with their habitats and the world around them.

	3.	(See below)
			A habitat is the place (or biome) 	The biosphere is the combination
			where an organism lives;			of earth, air and water.

			A habitat is a part of the bio-		The biosphere is the whole Earth.
			sphere;

			Both habitats and biospheres contain air, water, and earth.

			Both habitats and biospheres have water in them.

	4.	A population is a group of one kind of animal; a community is all the animals in one habitat. The population, for example, of people in our house is 5. The community of this section of the town (our house and our neighbour) is 7 people, 6 cats, and 2 dogs.

	5.	Yes. Most animals need water to survive, and rain is a source of it. Also, if there is no water or rain in the area, plants and trees can not grow, so animals that eat leaves such as deer wouldn't be able to survive, and animals that live in the trees wouldn't have a home.

	6.	Rabbits eat dandelions, so there'd be less dandelions the more rabbits eat them. However, rabbits need to eat dandelions as food, so if they couldn't find anything else, it'd be important that there's enough dandelions that are still growing for the rabbits to eat.

SECTION 2: POPULATIONS
	
	1.	Three ways in which ecologists can estimate the size of a population are:
			1. The ecologists would split a habitat into different sections of equal size. They would set up a way to see how many of the species there are in one section (perhaps by labeling ones they find in the area), then multiply that by the total number of sections in the habitat.
			2. They'd set out some traps (harmless, just for holding the animals there temporarily) in the morning of a day, and leave them there all day and night. Next morning, they would come back and see how many they captured. For each one they captured, they would put a marker on such as a tag or small collar, and then they would set them free. Next morning, they would repeat the traps and see how many that came back had labels, and how many didn't. Based on this information, they can figure out how many animals were in the area.
			3. The ecologists would look at the things that the species required to survive, and then look at about how much of the things they needed to survive there is. Judging from this they can figure out their carrying capactiy and figure out about how many there probably is.

	2.	If the birth rate per year is greater than the death rate per year, the population's growth rate is positive and next year there will be more people than this year. If the death rate per year is greater than the birth rate, the population's growth rate is negative and next year there will be less people than this year.

	3.	The carrying capacity is the maximum number of animals in an ecosystem. If there is too many animals for the available food in their ecosystem to support, some will either starve or leave; either way, resulting in a smaller population / ecosystem.

	4.	If there's not enough food or water, the animals won't be able to live there, they'll either have to leave or starve. Also, many birds live and build their nests in trees, so if there isn't enough water for the trees to grow, they don't have a home and have to move.

SECTION 3: INTERACTIONS WITHIN COMMUNITIES
	
	1.	Because, while producers can survive on just the sun's rays of light and can produce their own energy (hence the name producers), consumers can't produce their own energy and need to eat other organisms, such as producers.

	2.	A herbivore that lives on land is hungry, but there are a few predators that live in the area. It relies on a flying creature to warn it if there is any of said predators roaming the area, looking for food.

	3.	The habitat is where the species		The niche is how the animal survives
		lives.									and acts in it's own habitat.

	4.	Because the parasites will weaken their hosts and then the hosts recover... resulting in MORE FOOD for the parasites.

	5.	Dragons rely on people to mine gems. Then they steal the gems and the process repeats. With angry people.