Nature of Science
Difference between independent and dependent variable?
Independent variable: factor that is being changed
Dependent variable: factor that is being observed/measured, the outcome
This type of organism makes its own food and forms the base of most food chains.
Producer/autotroph
The process that uses sunlight to convert carbon dioxide and water into glucose and oxygen.
Photosynthesis
Age of the Earth
4.6 billion years ago
Name the 4 types of macromolecules
Carbohydrates, lipids, proteins, nucleic acids
Explains the why
Theory
How much energy is being transferred between the trophic levels in an energy pyramid?
10%
What are the products of cellular respiration?
Carbon dioxide, water, and ATP
The main greenhouse gas that contributes to global warming.
Carbon dioxide
These biological molecules act as catalysts to speed up chemical reactions in living organisms.
A tentative scientific explanation that can be tested by further observation or by experimentation
Hypothesis
This type of relationship benefits one organism while the other is neither helped nor harmed.
This organelle is where photosynthesis occurs in plant cells.
Chloroplast
Name 3 human activities that contribute to global warming/climate change.
Burning fossil fuels, deforestation, pollution, agriculture/livestock farming
________ describes water molecules sticking together, while_________ describes water molecules sticking to other surfaces.
Difference between Quantitative vs. Qualitative observations?
Quantitative: measurable, numerical data
Qualitative: observations based off the 5 senses
The maximum number of individuals of a species that an environment can support.
Carrying capacity
This type of organism only performs cellular respiration.
Heterotrophs
Name 3 effects of climate change.
Ice caps melting, rise in sea levels, increase in global temperature, increased severity in storms, habitat loss
This type of macromolecule is made up of glycerol and fatty acids and is used for long-term energy storage.
Lipid
Steps of the scientific method?
Problem/Question, Hypothesis, Experiment, Data/Observations, Conclusion
Difference between food web and ecological pyramid?
Food web: made of multiple food chains, shows feeding relationships between organisms
Ecological pyramid: shows the flow of energy from producers to consumers
What is the relationship between photosynthesis and cellular respiration?
The reactants of photosynthesis are products of cellular respiration and vice versa
This term describes long-term shifts in temperatures and weather patterns, and is not limited to just temperature rise.
What elements are water made of, and what bonds form between them?
C,H,O; covalent bonds