Characteristics of Life
What are the two types of reproduction?
Asexual and Sexual Reproduction.
What questions should be answered by the problem?
What is the problem? What are the constraints? What are the materials?
What is a controlled experiment?
An experiment in which the only thing being altered or adjusted is the independent variable.
Define the following: Asexual Reproduction and Sexual reproduction
Asexual: a type of reproduction that requires only one parent;offspring are exact copy's of parent
Sexual: a type of reproduction that requires two parents;offspring are more diverse
Define the following: hypothesis
Hypothesis: a question about a theory that you test through study and experimentation
What is homeostasis?
The maintenance of a stable internal environment.
What step in then the engineering design process is the same as one step in the scientific method?
The first step;the problem
How can a person differentiate between the dependent and independent variables?
The person can think of it as the dependent variable relies on the independent variable and results rely on testing.
Define the following: Multicellular and Unicellular
Multicellular: made up of two or more cells
Unicellular: made up of one cell
Define the following: conclusion, solution, and interpret
Conclusion: a judgement reached by reasoning
Solution: a means of solving a problem
Interpret: to provide the meaning of
How is an organism defined by the way they obtain food?
If an organism makes it's own food, it is defined as an autotroph. If an organism does not make it's own food, it is defined as a heterotroph, or a consumer.
How can a person use the steps of the engineering design process to solve a problem?
They can use it to build or design things that can help them in their everyday life.
What are Lipids known as?
Fats and oils
Define the following: Heterotroph and Autotroph
Heterotroph: an organism that cannot produce it's own food; a consumer
Autotroph: An organism that produces it's own food; a producer
Define the following: variable, independent variable, and dependent variable
Variable: any factor or condition that can be controlled or changed
Independent variable: the variable that is changed in an experiment
Dependent variable: what you measure during the experiment
What characteristics define a living thing?
All living things are able to reproduce, all living things are composed of cells,all living things have DNA,all living things have basic needs,all living things grow and develop over an expected life span, and all living things adjust to their surroundings.
What is the fourth step of the engineering design process?
The fourth step is to build.
How can a person use the steps of the scientific method to solve a problem?
They can use them in everyday problems as some do not have obvious answers and may require critical thinking. The scientific method is not just for scientists.
Define the following: criteria and constraints
Criteria: a standard on which something may be judged by
Constraints: limitations or restrictions
Define the following: Modification, homeostasis, and adaptation
Adaptation: a change or the process of a change when an organism becomes better suited to it's environment
Modification: a change that is made
Homeostasis: the maintenance of a stable internal environment
What are the three most important basic needs for an organism?
Water, oxygen, and Energy
What are the seven steps of the engineering design process?
1. Problem
2. Brainstorm
3. Design
4. Build
5. Test and evaluate
6. Communicate
7. Redesign
What chemicals does life use in order to survive?
Carbohydrates
Lipids
Nucleic acids
Protiens
Define the following: Design, data, and analyze
Design: a plan produced to show the look and the function of an object before it is built
Data: facts or statistics collected for analysis or reference
Analyze: discover or reveal through detailed examination.
Define the following: Constants, control, and model
Constants: parts of an experiment that stay the same throughout
Control: a baseline of an experiment used to compare other groups in the experiment
Model: a representation of an idea