Biology Chapter 1 Study Questions

A rose bush is classified in domain _____ and kingdom _____. A) Eukarya ... Fungi B) Eukarya ... Protista C) Eukarya ... Plantae D) Eukarya ... Animalia E) Bacteria ... Archaea

C)

The DNA of a eukaryotic cell is found within the ______. A) prokaryotic cell B) archaea C) nucleus D) insulin

C)

Which of the following best describes a theory? A) a well-known fact B) an experiment that is repeated over and over again C) a comprehensive explanation of natural phenomena D) supported by abundant evidence E) a tentative explanation of natural phenomena

C) Theories are supported by the accumulation of extensive and varied evidence.

A(n) _______ involves running a test multiple times while changing one variable, leaving the others the same.

controlled experiment

Fungi are classified into which Domain? A) Eukarya B) Archaea. C) Bacteria D) Eukarya and Archaea. E) Eukarya and Bacteria.

A)

In a scientific experiment, the control group ______. A) serves as a basis of comparison with the experimental group B) is required for the validity of discovery science C) is subjected to the factor whose effect is being tested D) allows for the simultaneous testing of multiple variables

A)

There is (are) _____ eukaryotic domain(s). A) one B) two C) three D) four E) five

A)

Prokaryotic cells are found in the domain(s) _____. A) Bacteria and Archaea B) Bacteria and Eukarya C) Bacteria and Protista D) Bacteria E) Protista and Archaea

A) Both of these domains are composed of prokaryotic cells.

A newly discovered multicellular organism obtains food by digesting dead organisms. Such an organism is most likely a member of the kingdom ______. A) Plantae B) Fungi C) Protista D) Animalia

B)

The branch of biology that explains both the diversity and the unity of life is ______. A) genetics B) evolution C) microbiology D) taxonomy

B)

Which of these is a type of prokaryotic cell? A) a plant cell B) a bacterial cell C) a worm cell D) a mushroom cell

B) Bacteria are prokaryotes.

A hypothesis is a(n) ______. A) theory B) observation C) guess D) tentative answer to a question

D)

Relative to prokaryotic cells, eukaryotic cells are usually ______. A) larger and equally complex B) smaller and more complex C) smaller and simpler D) larger and more complex

D)

Which of these is required for natural selection to occur? A) unequal reproductive success B) inheritance C) individual variation D) all of the above

D)

What name is given to a proposed explanation for a set of observations? A) experiment B) theory C) observation D) hypothesis

D) A hypothesis is a tentative answer to a question.

Which of these is a key feature of the scientific method? A) Science is moral. B) Once a hypothesis has been proved, it can never be changed. C) Experiments need not be repeatable. D) Scientific hypotheses must be testable.

D) If a hypothesis is not testable (not falsifiable), it is not scientific.

Which of the following is not a property of life? A) Populations of organisms rarely change over time. B) Organisms take in energy and use it to perform all of life's activities. C) Organisms reproduce their own kind. D) Living things exhibit complex but ordered organization.

A)

What is the fundamental unit of life? A) cell B) gene C) ecosystem D) biome

A) The simplest unit of life is the cell, and all organisms are composed of cells.

A(n) _______ is a proposed explanation for a set of observations. It leads to predictions that can be tested by additional observations or by experiments.

hypothesis

Scientists use a general process known as the _______ to ask and answer questions about nature.

scientific method

A(n) ________ is broader in scope than a hypothesis, is supported by a large body of evidence, and generates many new hypotheses.

theory

Which Domain(s) includes unicellular orgainsms? A) Eukarya. B) Eukarya, Archaea, and Bacteria. C) Archaea. D) Archaea and Bacteria only. E) Bacteria.

B) Single celled organisms may or may not have membrane bound nuclei and are found in all domains.

Based on diversity, life is divided into Bacteria, Archaea, and Eukarya. These groupings are called _____. A) protists B) domains C) eukaryotes D) kingdoms

B) These three domains represent all living organisms on Earth.

Which of these is an ecosystem? A) all of the fish in Lake Erie B) Lake Erie and everything living in it C) the producers found in Lake Erie D) lakes

B) This answer includes both the living and nonliving components of the particular area.