What is Double helix?
This organ system, containing the trachea and lungs, is responsible for taking in oxygen and expelling carbon dioxide.
What is the respiratory system?
Often referred to as the "powerhouse of the cell," this membrane-bound organelle is where eukaryotic cells generate ATP energy
What is mitochondria?
When designing an experiment, this is the name of the variable that the investigator intentionally changes or manipulates
What is the independent variable?
This term describes a pure chemical substance consisting of two or more different elements chemically bonded together
What is a compound?
These are different forms of the same gene
What are alleles?
This human system, containing the stomach and intestines, breaks down food into nutrients that the body can absorb for energy.
What is the digestive system?
Plants use this cellular process to capture solar energy and store it in chemical bonds as glucose.
What is photosynthesis?
This logarithmic scale is used in chemistry to measure how acidic or basic a water-based solution is
What is the pH scale?
Plants release water vapor into the atmosphere from their leaves through this biological evaporation process.
What is transpiration?
True or False: An organism's genotype refers to its observable traits
False
Bonus +300 Fix the False
This system uses organs like the thyroid and pancreas to release chemical messengers called hormones.
What is the endocrine system?
Organisms use this cellular process to break down glucose in the presence of oxygen, releasing energy and producing carbon dioxide as a waste product.
What is aerobic cellular respiration?
In scientific investigations, this term refers to a well-tested, broad explanation for a wide range of natural phenomena that is supported by extensive evidence
What is a scientific theory?
This type of high-energy, short-wavelength electromagnetic radiation is largely absorbed by the stratosphere, protecting life on Earth
What is Ultraviolet (UV) radiation?
Charles Darwin's theory of evolution relies on this mechanism, where organisms better adapted to their environment tend to survive and produce more offspring.
What is natural selection?
Composed of the brain, spinal cord, and nerves, this system controls all of the body's rapid electrical communication.
What is the nervous system?
These physical, non-living components of an ecosystem, such as temperature, water, soil, and sunlight, heavily influence living communities
What are abiotic factors?
To represent experimental data clearly, investigators use these labeled visual tools to plot relationships, such as changes over time
What are graphs (or charts/tables)?
This term describes a pure substance consisting of only one type of atom that cannot be broken down into simpler substances by chemical means
What is an element?
This term describes a physical or behavioral trait that is passed from parent to offspring through genetic information
What is a heritable trait?
This massive human activity involves clearing land to grow crops and raise animals for food.
What is agriculture (or farming)?
This model represents a linear sequence of who-eats-whom, demonstrating the flow of energy from producers to apex consumers
What is a food chain?
During laboratory work, these documents (conventionally researched by students) provide critical safety information about chemical toxicity, handling, and disposal.
What are Safety Data Sheets (SDS) / Material Safety Data Sheets (MSDS)?
This chemical property describes an atom's ability to attract shared electrons in a covalent bond, and it generally increases as you move from left to right across a period on the periodic table.
What is electronegativity?