Concept15 - Concept 1.5 Biologists use various forms of...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Concept 1.5 Biologists use various forms of inquiry to explore life The word science is derived from a Latin verb meaning “to know.” At the heart of science is inquiry, people asking questions about nature and focusing on specific  questions that can be answered. The process of science blends two types of exploration: discovery science and hypothesis-based  science. Discovery science is mostly about discovering nature. Hypothesis-based science is mostly about explaining nature. Most scientific inquiry combines the two approaches. Discovery science describes natural structures and processes as accurately as possible through  careful observation and analysis of data. Discovery science built our understanding of cell structure and is expanding our databases  of genomes of diverse species. Observation is the use of the senses to gather information, which is recorded as data. Data can be qualitative or quantitative. Quantitative data are numerical measurements. Qualitative data may be in the form of recorded descriptions. Jane Goodall has spent decades recording her observations of chimpanzee behavior during  field research in Gambia. She has also collected volumes of quantitative data over that time. Discovery science can lead to important conclusions based on inductive reasoning. Through induction, we derive generalizations based on a large number of specific  observations. In science, inquiry frequently involves the proposing and testing of hypotheses. A hypothesis is a tentative answer to a well-framed question. It is usually an educated postulate, based on past experience and the available data of  discovery science. A scientific hypothesis makes predictions that can be tested by recording additional  observations or by designing experiments. A type of logic called deduction is built into hypothesis-based science. In deductive reasoning, reasoning flows from the general to the specific. From general premises, we extrapolate to a specific result that we should expect if the  premises are true. In hypothesis-based science, deduction usually takes the form of predictions about what we  should expect if a particular hypothesis is correct. We test the hypothesis by performing the experiment to see whether or not the results are as  predicted. Deductive logic takes the form of “If . . . then” logic.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/04/2012 for the course BSC BSC1005 taught by Professor Orlando,rebecca during the Fall '10 term at Broward College.

Page1 / 4

Concept15 - Concept 1.5 Biologists use various forms of...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online