Scientific Method
Graphing
Food chains and Food webs
Abiotic and Biotic factors
population growth
100
what is the Independent variable?
An independent variable is a variable that is manipulated to determine the value of a dependent variable.
100
what is a bar graph?
Bar graph is the simplest way to represent a data.
Bars can be marked both vertically and horizontally but normally we use vertical bars. The height of bar represents the frequency of the corresponding observation
100
explain all of the different levels of organization
1. species
2. population
3. community
4. ecosystem
5. biome
6. biosphere
100
how does carbon cycle through the biosphere?
Carbon cycle is the transfer of CO2 molecules from one phase to another in a manner. All living things are made of carbon. Carbon is also a part of the ocean, air, and even rocks. Because the Earth is a dynamic place, carbon does not stay still.
100
what characteristics are used to describe a population?
characteristics include population size, population density, population spacing, and age structure. is the number of individuals in a population at a given time.
200
what is the dependant variable?
A dependent variable is what you measure in the experiment and what is affected during the experiment. ... It is called dependent because it "depends" on the independent variable. In a scientific experiment, you cannot have a dependent variable without an independent variable.
200
what is a line graph?
Line graphs are used to track changes over short and long periods of time. When smaller changes exist, line graphs are better to use than bar graphs. Line graphs can also be used to compare changes over the same period of time for more than one group.
200
how does energy flow through an ecosystem?
Energy flows through an ecosystem in only one direction. Energy is passed from organisms at one trophic level or energy level to organisms in the next trophic level.
200
what is the difference between climate and weather?
Weather is the day-to-day state of the atmosphere, and its short-term variation in minutes to weeks. People generally think of weather as the combination of temperature, humidity, precipitation, cloudiness, visibility, and wind. ... Climate is the weather of a place averaged over a period of time, often 30 years.
200
what is exponential and logistic growth, and how are they alike in comparison?
exponential growth is a specific way that a quantity may increase over time.
logistic growth is a population's per capita growth rate gets smaller and smaller as population size approaches a maximum imposed by limited resources in the environment, known as the carrying capacity 
300
what is the control group?
a group separated from the rest of the experiment such that the independent variable being tested cannot influence the results. This isolates the independent variable's effects on the experiment and can help rule out alternative explanations of the experimental results
300
What axis do the Independent and Dependent variables go on the graphing?
I= x (horizontal)
D= y (vertical)
300
how much energy is available to each tropic level?
100% for producers
10% for primary producers
1% secondary consumers
.1% tertiary consumers
300
what is the greenhouse effect?
the greenhouse effect keeps our earth inhabitable and it keeps it natural. The sunlight comes down to the earth and some of it comes down, but most of the sunlight bounces back. The rays add more layers of carbon dioxide.
300
what factors can determine the carrying capacity of an ecosystem?
The carrying capacity of an environment may vary for different species and may change over time due to a variety of factors including: food availability, water supply, environmental conditions and living space.
400
what are the first four steps of the scientific method
1. define the problem
2. background information
3. specify requirements
4. brainstorm, evaluate, and choose the solution
400
what is a pie chart?
this is used to show only the relative parts of a whole
400
compare and contrast the pyramids of energy, numbers, and biomass
energy pyramids shows how energy flows through, and everytime the pyramid moves up, it continues to lose energy. Biomass pyramids are any kind of living material, the largest biomass material will be at the bottom, same for all pyramids. And then pyramid of numbers shows the number of organisms at each trophic level. They all are different in some way but they also each have similar comparisons
400
what factors define a biome?
Biomes are very large ecological areas on the earth's surface, with fauna and flora (animals and plants) adapting to their environment. Biomes are often defined by abiotic factors such as temperature, climate, relief, geology, soils and vegetation.
400
list a couple various types of limiting factors
limiting factors include light, water, nutrients or minerals, oxygen, the ability of an ecosystem to recycle nutrients and/or waste, disease and/or parasites, temperature, space, and predation.
500
what are the last 4 steps of the scientific method
5. develop prototype solution
6. test solution
7. solution does not or does meet requirement
8. communicate results
500
find the IV, DV, and control group
Bart believes that mice exposed to microwaves will become extra strong. He decides to perform an experiment by placing 10 mice in a microwave for 10 seconds. He compared these 10 mice to another 10 mice that had not been exposed. His test consisted of a heavy block of wood that blocked the mouse food. He found that 8 out of 10 of the microwaved mice were able to push the block away. 7 out of 10 of the non microwaved mice were able to do the same.
IV= microwave
DV= strength or number of blocks
Control Group= mice that had not been exposed
explain why these are in this place
500
how do disturbances in an ecosystem impact a food web?
if the population decreases or a species goes extinct then it will effect the food web
500
what characteristics are shared by all living things?
characteristics are shared by living thing that are cells, they consume energy, DNA, respond to their environment, reproduction and death