Variables
This is the one thing the scientist purposely changes during an experiment.
What is the independent variable?
An organized way to plan and carry out an investigation.
What is the scientific method?
This describes an organism's genetic makeup, such as TT, Tt, or tt.
What is genotype?
The basic unit of all living things.
What is a cell?
Refers to a plant, animal, or organism whose DNA has been changed or altered.
What are GMO's?
The variable that is measured or counted
What is the dependent variable?
Touch, taste, sight, smell, hearing
What are the 5 senses?
A variant form of a gene.
What is an allele?
We humans have 23 pairs of this (46 total) in each of our cells.
What are chromosomes?
Only allows certain animals of the same species to breed.
What is selective breeding?
In an experiment testing whether fertilizer affects plant growth, the amount of fertilizer is this variable.
What is the independent variable?
An educated prediction that can be tested.
What is a hypothesis?
If a trait skips generations, it is most likely this type of trait.
What is a recessive trait?
Scientists have found that if you stretched out this molecule in one cell all the way out, it would be about 2 meters long.
What is DNA?
What are the three main benefits of Vitamin A?
What is vision, immune system, and development/skin?
Name all three major types of variables used in a controlled experiment.
What are the independent variable, dependent variable, and controlled variables
Correct hypothesis format
What is "If, Then, Because?"
The observable and measurable physical traits or characteristics of an individual
What is phenotype?
Spool-like proteins. DNA wraps around them to begin compacting.
Fill in the blank. Earth has 5 oceans. Together they hold _________% of the Earth’s water.
What is 97%?
A scientist measures how fast ice melts after changing the temperature. Which variable is the independent variable?
What is temperature?
Name all 6 steps of the scientific method
Make an observation,
Come up with a Question
Formulate a hypothesis
Test with an experiment
Analyze your results
Draw conclusions
The genotype tt is represented by this term.
What is homozygous recessive?
Refers to how many complete sets of chromosomes an organism's cells contain.
What is ploidy?
A system that transports large amounts of water in one direction that is determined by gravity is called what?
What is a river?