Biology Unit 1
Observation and research that might be true
A proposed explanation is based on
Response
A reaction to a stimulus
Devepolment
All of the structural changes that take place during the life of an organism
Enviroment
All the biotic and abiotic factors in the place an organism lives, includes air, water, weather, temperature, and other organisms
Adaptations
Any inherited structure, behavior or internal process that enable an organism to respond to the environment and live to produce offspring.
Stimulus
Anything in an organism's external or internal environment that causes the organism to react
Organism
Anything with all characteristics of life
Controls
Are the part of experiment that is the standard against which results are compared
Eukaryotic
Cell with a nucleus and membrane bound
Prokaryotic
Cell with no nucleus or membrane bound organelles
Haploid
Cells with 1 set of chromosomes (n)
Diploid
Cells with 2 sets of chromosomes (2n) -1 from mom and 1 from dad
Gametes
Haploid sex cells Ex. Egg and sperm
Key
Identify the different sets
Theory
If a hypothesis is proven and tested many times by various scientists it becomes a generally accepted scientific principle
Growth
Increase in the amount of living material and the formation of new structures
The experimental group
Is the test group that receives the experimental treatment
An experiment
Is the test of a hypothesis
Biotic
Living
Homeostasis
Maintaining a stable internal environment.
Abiotic
Nonliving
Using 1 or more of the 5 senses
Noting or perceiving objects or events by
Quantitative data
Numerical data (Number) (quantity)
Experiments should have
Only 1 experimental group
Consumers
Organisms that can't make their own food and must eat other organisms
Heterotrophic
Organisms that can't make their own food and must eat other organisms
Autotrophic
Organisms that use the sun or chemicals to make their own food
Producers
Organisms that use the sun or chemicals to make their own food
Phloem
Plant vascular tissue that carries food from leaves to rest of plant
Xylem
Plant vascular tissue that carries water from roots to rest of plant
Sexual reproduction
Requires two parents that each contributes
Asexual reproduction
Simple division, organism splits in half
Evolution
The gradual change in a species through adaptations over time
Independent Variable
The one that you control in the experiment is always graphed on the X-axis
Dependent Variable
The one you measure in the experiment is always graphed on the Y-axis, this variable depends on the value of the independent variable
Biology
The study of life
Cellular Respiration
Using food to make energy Glucose+Oxygen-------->Carbon Dioxide+Water+Energy Aerobic (36) > Anaerobic (2)
Photosynthesis
Using light to make food Carbon Dioxide+Water-------> Glucose+Oxygen
Qualitative data
Written data
