Introduction to Biology Unit 1

Warm –up: What is Biology??? LIFE STUDY OF the study of life.

What makes something alive? Grow & Develop Respond to Stimuli Need energy Cells DNA Reproduce Change over time (evolve) Gas exchange Homeostasis (maintaining a stable interal environment)

Scientific Method OBSERVATIONS & ID THE PROBLEM RESEARCH HYPOTHESIS EXPERIMENT RECORD DATA ANALYZE DATA & CONCLUSION REPEAT EXPERIMENT TO VERIFY and REPORT RESULTS

Designing/Engineering a Lab INDEPENDENT VARIABLE DEPENDENT VARIABLE QUANTITATIVE DATA QUALITATIVE DATA CONTROL EXPERIMENTAL CONSTANTS STANDARDIZED

PRACTICE INDEPENDENT VARIABLE – TYPE OF FERTILIZER DEPENDENT VARIABLE – GROWTH OF PLANT CONTROL GROUP – PLANT WITHOUT FERTILIZER EXPERIMENTAL GROUP – PLANTS WITH FERTILIZERS CONSTANTS – SAME AMOUNT OF FERTILIZER, SAME TYPE OF PLANT, SAME AMOUNT OF WATER

ORGANIZING DATA X Y LEGEND / KEY TITLE SCALE EQUAL NO

GRAPH TITLE – The Effect of the I.V. on the D.V. Legend ------ - Group 50 40 30 20 10 Legend ------ - Group ------ - Class D.V. (units) 0 5 10 15 20 25 I.V. (units)

Breathing rate (per minute) Use the information recorded in Data Table 1 to construct a LINE graph on the grid provided below. You should label each axis, mark an appropriate scale on each axis, plot the data, connect the points, and give your graph a title. Data Table 1 Temperature (°C) Breathing rate (per minute)   Guppies Goldfish 10 15 8 25 13 18 30 20 38 23 60 40 57 43 27

Observations & Inferences

What is a theory??? HYPOTHESIS THEORY LAW OBSERVATION INFERENCE

Observations & Inferences

Graphing Warm-up: Given the information below make a line graph. Plants are able to make their own food through a process called photosynthesis. One of the products of photosynthesis is oxygen. When plants are under water they release the oxygen in the form of gas bubbles. The more bubbles a plant produces, the more productive it is. The following data table shows a comparison of the number of bubbles produced between two different kinds of plants found in Lake Gaston. Data Table: Productivity of two plants found in Lake Gaston at various depth. Depth in meters Number of Bubbles per Minute: Plant A Number of Bubbles per Minute: Plant B 2 29 21 10 45 40 16 32 50 25 20 34