Scientific Investigation
The scientific method step where you gather background info before writing a testable question.
What is making observations / doing research?
This is the smallest unit of life
What is a cell?
Because water has unevenly distributed charges, it is described as this type of molecule.
What is polar?
According to cell theory, all cells come from this.
What are pre-existing cells?
This two-name naming system for organisms was developed by Linnaeus.
What is binomial nomenclature?
This type of statement is an educated guess, often written in “If…then…” form.
What is a hypothesis?
The ability of organisms to maintain a stable internal environment is called this.
What is homeostasis?
This property of water allows insects to walk across its surface.
What is surface tension?
Cells that do NOT have a nucleus belong to this group.
What are prokaryotes?
In food chains, arrows always point in the direction of this.
What is energy flow?
This variable is deliberately changed by the scientist during an experiment.
What is the independent variable?
A group of organisms of the same species living in the same area is known as this.
What is a population?
Water moving across a membrane from high to low concentration is known as this process.
What is osmosis?
This structure controls what enters and leaves the cell.
What is the cell membrane?
In binomial nomenclature, the scientific name is written as this first, then this second
What are genus, then species?
This variable is measured during an experiment
What is the dependent variable?
This level of organization includes all ecosystems on Earth.
What is the biosphere?
This type of transport requires energy and moves substances against the concentration gradient.
What is active transport?
These 3 structures are found in plant cells but not animal cells
What are cell wall, chloroplast, and large vacuole?
A relationship where one organism benefits and the other is harmed
What is parasitism?
The parts of an experiment intentionally kept the same are called these.
What are constants?
A group of cells working together for a similar function is called this.
What is a tissue?
This transport process uses carrier proteins but does NOT require energy.
What is facilitated diffusion?
The site of protein synthesis in both prokaryotes and eukaryotes
What are ribosomes?
Muscle cells contain many of these organelles because they need lots of usable energy
What are mitochondria?