Janay

Topics: Scientific method, Theory, Experiment Pages: 6 (858 words) Published: April 1, 2009
BIO 111 '' Introduction to Biological Sciences
Assignment 1 '' ANSWER KEY
Chapter 1: A View of Life?

Multiple Choice (15 Questions = 5 points each)

1) The binomial name Notorcytes typhlops refers to the taxonomic levels:

A) class and order
B) genus and species
C) kingdom and phylum
D) order and phylum

2) Select the smallest, least inclusive taxonomic level among the following choices:

A) class
B) genus
C) order
D) family

3) Select the largest, most inclusive taxonomic level among the following choices:

A) class
B) order
C) domain
D) phylum

4) Each is a general characteristic of life EXCEPT:

A) the ability to respond
B) reproduction and development
C) organization
D) classification

5) The lowest level of organization to have the characteristics of life is the _________ level.

A) atomic
B) cellular
C) molecular
D) population

6) The term metabolism refers best to:

A) chemical and energy transformations
B) maintenance of internal conditions
C) the ability to respond to stimuli
D) the lack of reproduction

7) Plants are unique among living things in that they are:

A) multicellular and absorb food
B) unicellular and ingest food
C) mulitcellular and photosynthesize
D) all of these are correct

8) Ferns belong to the kingdom:

A) Animalia
B) Fungi
C) Plantae
D) Protista

9) Changes in _____________ account for the species to evolve.

A) physical factors
B) ecosystems
C) genes
D) sunlight

10) Through evolution, populations can:

A) adapt to the environment
B) change their level of organization
C) fail to reproduce
D) eliminate cell structure

11) Which of these associations is incorrect?

A) data '' factual information
B) hypothesis '' final conclusion
C) both are correct
D) none of them are correct

12) The ______________ variable deals with the observable effects of an experiment.

A) control
B) responding
C) experimental
D) independent

13) Valid scientific results should be repeatable by other scientific investigators.

A) true
B) false

14) The statement with the greatest acceptance and predictive value from scientists is the:

A) hypothesis
B) induction
C) observation
D) scientific theory

15) After years of observing, a homemaker concluded, “Ugly rugs never wear out.” This person has made a statement that is:

A) a hypothesis
B) conjecture
C) a scientific law
D) theory

Short Answer (5 Questions = 5 points each)

16) Provide an example of a scientific law.

A scientific law is a relationship between quantities, usually described by an equation in the physical sciences; is more important and describes a wider range on phenomena than a scientific principle. An example of a scientific law would be the law of conservation of energy. This law states that energy is never created or destroyed.

17) Are all theories always completely accepted or completely rejected? Explain.

A theory is a broad, detailed explanation that guides the development of hypotheses and interpretations of experiments in a field of study. A theory can be either accepted or rejected. If the theory is proved correct by many scientists over a period of time, it can become a scientific law. A theory can be rejected if the outcome of the experiment does not meet the hypotheses.

18) Suppose you want to know if objects with different masses fall to the ground at different rates. State a hypothesis about falling objects.

If the object has a higher mass, then it will fall to the ground faster than the lighter mass object.

19) Explain how you can test the hypothesis in Question 18. What will be the manipulated variable in your experiment? What will be the responding variable?...
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