Biology I test #1 .txt
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1st step of scientific method
Question - something you're curious about
2nd step of scientific method
Research - investigating and studying to gain knowledge and find others' conclusions
3rd step of the scientific method
Hypothesis - Educated guess on the most likely or probable thing to happen when you attempt to do the experiment.
4th step of the scientific method
Experiment - to put your hypothesis to test by attempting your original question, to see what will happen.
5th step of the scientific method
(Data & observations)
Data - the statistics written down describing the results from your experiment.
Observations - to examine what happens within the experiment / your opinion based from data.
6th step of the scientific method
Conclusion - your decision based off of your testing, experimenting, and data.
7th step of the scientific method
Retest - re-experiment.
Stays the same
Define: dependent variable
Outcome / measured end
A guess based on observations
Something used for comparison, normal and not messed with; stock
3 groups get a super seeds while the → *1 group gets regular seeds* ←
Rules; the way it works.
Define: controlled experiment
Experiment that has a control.
Define: independent variable
The one (thing within the experiment) that you change on purpose (to test your hypothesis)
Synonym for "Average"
Make an opinion from observing / using senses
Define: qualitative data
Words and descriptions to explain the data. NO NUMBERS
An idea created from hypothesis' very large from many years ago.
Define: optimum (data)
Synonym for "BEST"
Define: quantitative data
measurements and numbers to explain data
Important; "a must"
A guess of what will happen. -prior knowledge
Difference between the lowest and highest in a set of data
Study of life
True or false. Scientists propose explanations that are testable
What quantitative and qualitative data can you gather about an ant farm? (two examples for each category)
Quantitative = how many ants / how long it takes for them to make a tunnel
Qualitative = describe the container / color of ants
Which sentence best states the importance of using control groups?
A) Control groups provide a method by which statistical variability can be reduced
B) Control groups eliminate the need for statistical tests and simplify calculations
C) Control groups allow a comparison between subjects receiving a treatment and those receiving no treatment
D) Control groups eliminate the need for large sample sizes, reducing the number of measurements needed.
C (allow a COMPARISON)
List the 8 characteristics of life
- 1. Has cells
- 2. growth and development
- 3. reproduce
- 4. evolve
- 5. respond to environment
- 6. homeostasis
- 7. obtain energy and use it
- 8. DNA.
True or false. All organisms respond to the environment in exactly the same ways
What is homeostasis? Provide an example of maintaining homeostasis in humans
Maintenance of body functions such as temperature
What are two types of reproduction and how are they different?
Sexual reproduction and asexual reproduction.
Sexual reproduction - 2 people/things have sex to make another.
Asexual reproduction - The organism splits into two making a duplicate.
What is the difference between an autotroph and heterotroph?
We are heterotrophs, we don't produce food with our body. Plants do which is autotroph.
List the (7) levels of biological organization in order from smallest to largest.
- Organ system
What is Responce to stimuli?
- It is when you respond to the environment.
- Example: Someone goes to hit you and you flinch / defend yourself
What does it mean to Use energy?
When you do anything at all you use energy stored in your body
What is Growth/development?
Slowly over time we change and develop inside and out
What is made of cells? What are cells?
Cells are the smallest life form, everyone is composed of cells
What is Reproduction? Name the two different kinds
- Sexual and asexual reproduction
- Sexual = two people bang
- Asexual = one thing splits in half and multiplies.
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