the answer is 3. A biosphere is the part of the earth that includes all life forms as well as all nonliving things and their environment wherein they interact with each other.

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The answer is 1. In order for plants to survive, certain factors must be taken into consideration. Factors such as sunlight, air, water and temperature are some of the basic factors plants need to determine the distribution and type of plant.

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The answer is 2. As seen in the given data, the percent of white mice occurred almost at the same rate as the greatest number of days of snow covered.

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The answer is 2. We can see in the data given that the percentage of white mice were in their greatest number during the time with the number of days of snow cover.

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The answer is 1. Ecology is the branch of biology wherein you study organisms in an ecosystem and how they react with their surroundings or environment. This branch of biology also includes all living and non-living forms interacting with their environment.

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The answer is 1. There are two types of competition. Intraspecific competition occurs when the same species fight for tight resources while a scramble competition is when the same species fight for a tight resource while in contrast competition resources are either consumed or not. Only one species gets to consume everything and the other is left with nothing.

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The answer is 2. An ecosystem includes both living and nonliving organisms. They interconnect with each other by way of energy flow and nutrients. Through photosynthesis, plants receive energy, plants are then eaten by animals and animals are eaten by other animals moving the flow of energy throughout the entire ecosystem.

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The answer is 4. Limiting factors are things or circumstances which halt the progress either in size or abundance of a population or an individual. Examples of which include resources, predation, and disease.

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The answer is 2. Competition is something to do with how two or more organisms react to a certain organism. In this type of interaction, two or more organisms prefer the same type of food or habitat wherein they compete with one another to get their preferred meal or habitat.

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