Biology Chapter 1 The Science Of Life

Scanning electron microscope, Transmission electron microscope

Scanning Electron Microscope- Produces an enlarges, three-dimensional object Transmission Electron Microscope- Transmits a beam of electrons.

Conducted under controlled conditions

A. Experiment

Tests the other two phases

A. Experiment

Development

A. The process by which an organism becomes a mature adult.

Can be tested

B. Hypothesis

Often revised as new evidence is gathered

B. Hypothesis

Possible explanation for observations and data

B. Hypothesis

can never be proven true beyond all doubt

B. Hypothesis

Homeostasis

B. Maintenance of constant and stable internal conditions.

Often an "if-then" statement

C. Prediction

States what will likely occur through testing

C. Prediction

Biology

C. The study of living things.

Cell, Metabolism

Cell-Smallest unit that can preform all life processes Metabolism-Sum of all chemical processes that occur in an organism.

A hypothesis currently held to be true... a. Has been supported by experimentation. b. may be revised or discarded in the future. c. will never change. d. both (a) and (b).

D. Both (a) and (b)

Control Group

D. Receives no experimental treatment.

Reproduction

E. Organisms make more of their own kind.

Ecology

F. The study of interactions of living organisms with each other and their environment.

Experiment

G. Planned procedure to test a hypothesis.

Resolution

H. The power to show details clearly in an image.

What key vocabulary terms are contained in this passage?

Hypothesis, Prediction, Experiment.

Hypothesis, Prediction

Hypothesis- Idea or explanation that is based on observations and can be tested Prediction- Statement made in advance that express the results that will be obtained.

Give the meaning of these terms.

Hypothesis-Statement that both explains their observations and data and can be tested. Prediction-Statement made in advance that states results from a hypothesis. Experiment-Process of testing a hypothesis and its predictions.

Adaptation

I. Trait that improves an individual's ability to survive and reproduce.

Independent Variable, Dependent Variable

Independent Variable- Factor that is deliberately manipulated Dependent Variable- Factor that changes as a result.

Prediction

J. Statement that forecasts what would happen in a test situation if a hypothesis were correct.

Natural selection, evolution

Natural Selection- Processes individuals that are better adapted Evolution- Heritable change in the characteristics within a population.

Organ, Organelle

Organ- Collection of tissues that carry out a specialized function Organelle- One of the small bodies that are found in the cytoplasm.

Theory, Observation

Theory- Explanation for some phenomenon that's based on observation Observation- Process of obtaining information by using the senses.

Sequence the statements below to show the steps in the process used in scientific investigations. ___ a. Make a prediction. ___ b. Carry out an experiment. ___ c. Make observations and collect existing data. ___ d. Adjust or accept the hypothesis. ___ e. Form a hypothesis.

a. 3 b. 4 c. 1 d. 5 e. 2