Random
Break down the word biology.
Bio -
ology -
Mass is measured in _____________.
grams
Name the three subatomic particles, along with their charges.
proton +, neutron 0, electron -.
Qualitative
A _____ helps living things survive and reproduce in a given environment.
Adaptation.
What side of the pH scale does vinegar fall on.
Acidic
Finish the acronym of your graphing checklist: TALKS.
Title Axis Labels Key Scale
An element has six protons, six neutrons, and six electrons. What is the mass number and what is the atomic number?
Atomic: 6
Define dependent variable.
What you measure during an experiment. Does not change.
What is the main difference between an ecosystem and a community?
Community: living; ecosystem: includes nonliving parts
What is activation energy? What do enzymes do to this?
Energy required to start a reaction. Enzymes decrease the activation energy and improve the speed of the reaction.
IV: soaps
What is an isotope?
Atoms of the same element that differ in the number of neutrons they contain are known as isotopes
What is a hypothesis?
proposed explanation made on the basis of limited evidence as a starting point for further investigation.
Name the six characteristics of living things.
•maintain homeostasis
•grow and develop
•Reproduce
•Complex chemistry
•respond to their environment
•made up of units called cells
Proteins are made up of ____
Amino acids
5,000 mm = ________________ km
.005 km
When can radioactive isotopes be helpful?
•to determine the ages of rocks and fossils.
•to treat cancer.
•to kill bacteria that cause food to spoil.
•as labels or “tracers” to follow the movement of substances within an organism.
Why is the scientific method important?
It allows us to answer scientific questions and test our hypothesis through a set, structured process
Describe the term symbiosis.
•Symbiosis is a close relationship between organisms of different species in which at least one of the organisms benefits.
Find mean, median, and mode: 27, 10, 8, 27, 16, 17.
Mode: 27
Median: 16+17/2 = 16.5
Mean: 17.5
There is a 10 mL graduated cylinder on Dr. Glynn's desk. What is the most specific unit of measure you can make with this.
10 mL cylinder: .2 mL
Describe the Chernobyl incident, including as many scientific terms as you can.
Key points: radioactive isotopes, control rods not absorbing neutrons, radiation sickness, exclusion zone of 2600 sq km, government response, 20,000 years
Define sample size. Define repetition. Describe how you would manipulate these to achieve a successful experiment.
Sample: individuals or events that are studied
•THE MORE TIMES AN EXPERIMENT IS REPEATED, THE MORE LIKELY THE RESULTS ARE TO BE VALID
We talked about five levels of organization in the body. Please list them in order.
Cells, tissues, organ, organ system, organism.