FREE BIOLOGY AND STUDY GAMES ABOUT BIOLGY

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FREE BIOLOGY AND STUDY GAMES ABOUT BIOLGY

CHAPTER 1 EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -19 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: inference

Answer:

a logical interpretation based on prior knowledge and experience

Question 2: independent variable

Answer:

factor in a controlled experiment that is deliberately changed; also called manipulated variable

Question 3: theory

Answer:

well-tested explanation that unifies a broad range of observations and hypotheses, and enables scientist to make accurate predictions about new situations

Question 4: homeostasis

Answer:

relatively constant internal physical and chemical conditions that organisms maintain

Question 5: metabolism

Answer:

the combination of chemical reactions through which an organism builds up or breaks down materials

Question 6: data

Answer:

evidence; information gathered from the observations

Question 7: DNA

Answer:

a self-replicating material present in nearly all living organisms as the main constituent of chromosomes

Question 8: biology

Answer:

scientific study of life

Question 9: hypothesis

Answer:

possible explanation for a set of observations or possible answer to a scientific question

Question 10: control group

Answer:

group in an experiment that is exposed to the same conditions as the experimental group except for one independent variable

Question 11: dependent variable

Answer:

variable that is observed and that changes in response to the independent variable; also called the responding variable

Question 12: biosphere

Answer:

part of earth in which life exists including land, water, and are or atmosphere

Question 13: sexual reproduction

Answer:

type of reproduction in which cells from two parents unite to form the first cell of a new organism

Question 14: observation

Answer:

process of noticing and describing events or processes in a careful, orderly way

Question 15: stimulus

Answer:

signal to which an organism responds

Question 16: asexual reproduction

Answer:

process of reproduction involving a single parent that results in offspring that are genetically identical to the parent

Question 17: bias

Answer:

particular preference or point of view that is personal, rather than scientific

Question 18: controlled experiment

Answer:

experiment in which only one variable is changed

Question 19: science

Answer:

organized way of gathering and analyzing evidence about the natural world