Biology Unit 1: Chapter 1 Quiz

Which statement regarding the scientific method is false?

A control group is always exposed to the factor being tested.

A fox belongs to the kingdom ___.

Animalia

Which statement regarding applied science (= technology) is false?

Applied science is a basis for all ethical or moral decisions.

Which domains contain organisms that lack a membrane-bound nucleus?

Archaea and Bacteria

Which statement is false regarding science?

Correct scientific conclusions are permanent and never subject to change or refinement.

Which of the following is one of the domains of life?

Eukarya

Which of these is an example of inductive reasoning used to form a hypothesis?

Every fungus that has ever been studied absorbs its food; therefore, food absorption is characteristic of fungi.

Which statement regarding the scientific method is false?

Hypotheses are finally proven as absolutely true or false.

Which statement about living organisms is not correct?

Living organisms create energy.

Nutrient molecules are used to build cellular structures or for energy. This best represents which characteristic of life?

Living things acquire materials and energy from the environment.

The bones in a bird are hollow, reducing its weight for flight. This is an example of which characteristic of life?

Living things are adapted.

The body temperature in humans is maintained around 37°C. Which characteristic of life does this information represent?

Living things are homeostatic.

Organs are composed of tissues, which are composed of cells. This is an example of which characteristic of life?

Living things have levels of hierarchical organization.

Which of the following statements is based on scientific observation and reasoning?

Objects fall downward anywhere on the earth's surface, regardless of the observer.

Which statement regarding the scientific method is false?

Original hypotheses are formed after an experiment.

Some students consume large amounts of coffee and so-called energy drinks to help them stay alert when studying. You notice that many who engage in this practice seem to do poorly on exams. Suppose you want to investigate the relationship between caffeine consumption and exam performance. Which of the following statements would be an appropriate hypothesis? Group of answer choices

Students who consume large amounts of caffeine while studying will have lower exam scores than those who consume less caffeine.

Which statement concerning reproduction is false?

The offspring of multicellular organisms tend to be identical to the parent.

Which statement regarding the scientific method is false?

Theories formed in everyday life carry the same validity as a scientific theory.

Which of the following is a potential consequence if people stop using applied science in the agriculture industry?

There could be a significant decrease in the amount of food produced.

Which of the following might plausibly be said by a scientist?

There is always a possibility that a more advanced experiment might falsify any hypothesis.

In the late 1800s, Louis Pasteur was searching for a vaccine for anthrax in livestock. One French veterinarian had a local reputation for being able to cure anthrax by applying oils and wrapping the animal in cloth to induce a fever. Pasteur also knew that some animals got well on their own when left untreated. Pasteur tested the effectiveness of the local veterinarian's methods by injecting four cattle with anthrax bacteria. He then directed the veterinarian to perform his procedures on two cattle. The other two cattle were left alone. What is the rationale for Pasteur's experimental design? Correct!

Two cattle represent a test of the treatment; two serve as a control to determine the likelihood of survival without treatment.

You are conducting an experiment to determine which brand of fertilizer results in the greatest amount of fruit production by tomato plants. In this example, the response variable would be the

amount of fruit produced by the tomato plants.

The three major domains of life are

archaea, bacteria, and eukaryotes.

The layer where organisms can exist on the surface of the earth is the

biosphere.

The smallest unit that has all of the characteristics of life is the

cell.

Which sequence correctly lists the different levels of biological organization, from the smallest and simplest to the largest and most complex?

cells-tissues-organs-organ systems-organisms

All the organisms of various species living within a given area constitute a(n)

community.

Which of the following domains contains organisms that are adapted to life in harsh environments?

domain Archaea

A community of organisms along with their physical environment constitutes a(n)

ecosystem.

Science is based on ___.

evidence

You are conducting an experiment to determine what concentration of disinfectant is most effective in killing bacteria. In this example, the concentration of disinfectant would represent the

experimental variable.

All of the following will strengthen a scientific theory EXCEPT ___.

faith

Which of these classification categories contains the closest related group of organisms?

genus

About 12 to 24 hours after the last meal, a person's blood sugar level normally varies from 60 to 90 milligrams per 100 milliliters of blood, although it may rise to 130 mg per 100 ml after meals high in carbohydrates. That the blood sugar level is maintained within a fairly narrow range, despite uneven intake of sugar, is due to the body's ability to carry out ___.

homeostasis

When you are overheated, you perspire, and when you are too cold, you shiver to generate heat. Which property of life is best represented by this example?

homeostasis

A suggested and testable explanation for an event is called a ___.

hypothesis

Of the following, which is the testable answer to a question? (It is sometimes called an "educated guess.")

hypothesis

A possible explanation for a natural event, based on observations and past knowledge, is a

hypothesis.

The type of logical thinking that uses related observations to arrive at a general conclusion is called ___.

inductive reasoning

Which classification category includes the most species?

kingdom

Ever since the antibiotic drug penicillin was discovered in 1928, the incidence of resistant bacteria has steadily increased as a direct result of

natural selection.

Which answer choice lists the steps of the scientific method in the correct order?

observation, hypothesis, experiment, data collection, conclusion

Which level of biological organization is composed of several tissues?

organ

A physician specializes in surgery involving the following group of organs: mouth, esophagus, stomach, and intestines. Overall, what is the highest level of organization that this physician is specialized in?

organ system

A piece of petrified wood was once part of a living organism that has had its tissues replaced by minerals. Which property of life will still be present in the wood?

organization

An unmanned spacecraft has been sent to another planet to detect other life forms that might be quite different from those on Earth. If the probe could only send back one still picture, which property or properties of life would be observable in a picture?

organization

All the banded sunfish (Enneacanthus obesus) in a pond would comprise a(n)

population.

Which sequence of classification categories is in the proper order from least to most inclusive (i.e. from narrowest to broadest)?

species, genus, family, order, class, phylum, kingdom, domain