test 1 (ch 1)

Nutrient molecules are used as building blocks or for energy. This best represents which characteristic of life? Select one: a. Living things acquire materials and energy from the environment. b. Living things are homeostatic. c. Living things are adapted. d. Living things grow and develop. e. Living things respond to stimuli.

a. Living things acquire materials and energy from the environment.

Corn belongs to the kingdom Select one: a. Plantae. b. Animalia. c. Fungi. d. Protista. e. Archaea.

a. Plantae.

Which of the following fields of study has played the greatest role in enabling scientists to extend the life span of individuals who are suffering from HIV / AIDS? Select one: a. Virology b. Entomology c. Biology d. Physics e. Technology

a. Virology

The layer where organisms can exist on the surface of the earth is the Select one: a. biosphere. b. ecosystem. c. population. d. homeostasis. e. community.

a. biosphere.

A piece of petrified wood was once part of a living organism, but its tissues have been replaced by minerals and it no longer exhibits most properties of life, except for Select one: a. organization. b. homeostasis. c. growth and reproduction. d. response to stimuli. e. metabolism.

a. organization.

Which of the following represents a potential threat to biodiversity? Select one: a. People construct artificial reefs to support marine life. b. Humans clear land for agriculture and housing. c. Energy flows through an ecosystem, with much lost as heat. d. Tropical rain forests and coral reefs are found where solar energy is the most abundant. e. In a food chain, one population feeds on another.

b. Humans clear land for agriculture and housing.

The body temperature in humans is maintained around 37°C. Which characteristic of life does this information represent? Select one: a. Living things acquire materials and energy from the environment. b. Living things are homeostatic. c. Living things are adapted. d. Living things grow and develop. e. Living things respond to stimuli.

b. Living things are homeostatic.

When comparing energy and chemicals in an ecosystem, Select one: a. both chemicals and energy cycle over and over again. b. chemicals cycle over and over again but energy flows through once. c. both chemicals and energy flow through once. d. energy cycles over and over again but chemicals flow through once. e. neither cycle nor flow but both are simply present.

b. chemicals cycle over and over again but energy flows through once.

Which of these classification categories contains the closest related organisms? Select one: a. domain b. genus c. family d. phylum e. kingdom

b. genus

Which answer choice lists the steps of the scientific method in the correct order? Select one: a. hypothesis, observation, experiment, conclusion, scientific theory b. conclusion, hypothesis, observation, experiment, scientific theory c. observation, hypothesis, experiment, conclusion, scientific theory d. observation, experiment, hypothesis, conclusion, scientific theory e. scientific theory, conclusion, hypothesis, experiment, observation

c. observation, hypothesis, experiment, conclusion, scientific theory

Which level of biological organization is composed of tissues? Select one: a. organism b. organ system c. organ d. cell e. molecules

c. organ

Which statement regarding the scientific method is false? Select one: a. Hypotheses are tentative explanations of observed phenomena. b. A hypothesis may become a theory, which may become a law. c. Deductive reasoning is often used in the design of an experiment. d. A control group is always exposed to the factor being tested. e. Conclusions are formed after an experiment is conducted.

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

What is the correct format for the binomial name of human beings? Select one: a. Homo Sapiens b. homo Sapiens c. homo sapiens d. Homo sapiens e. Sapiens homo

d. Homo sapiens

The bones in a bird are hollow, reducing its weight for flight. This is an example of which characteristic of life? Select one: a. Living things grow and develop. b. Living things acquire materials and energy from the environment. c. Living things reproduce. d. Living things are adapted. e. Living things are homeostatic.

d. Living things are adapted.

Which of the following statement is based on scientific observation and reasoning? Select one: a. Some chemical compounds react differently in different human cultures. b. If a tree falls in a forest but this is never witnessed by a human, there are no physical or biological consequences. c. Many physical and biological phenomena lack any cause-and-effect; outcomes from one situation may be one way today and another tomorrow. d. Objects fall downward anywhere on the earth's surface regardless of the observer. e. A scientist records only the data that are easiest to interpret.

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

The three major domains of life are Select one: a. plants, animals, and protists. b. bacteria, fungi, and eukaryotes. c. eukaryotes, prokaryotes, and animals. d. archaea, bacteria, and eukaryotes. e. eukaryotes, prokaryotes, and fungi.

d. archaea, bacteria, and eukaryotes.

When researchers test a new human cancer drug using mice, the mice constitute the Select one: a. hypothesis. b. data. c. experimental design. d. model. e. control.

d. model.

A physician specializes in surgery involving the following group of organs: mouth, esophagus, stomach and intestines. Overall, this physician is specialized at which level of organization? Select one: a. cell b. tissue c. organ d. organ system e. organism

d. organ system

Which classification category includes the most species? Select one: a. family b. genus c. class d. phylum e. kingdom

kingdom

Which statement regarding the scientific method is false? Select one: a. A theory that has been repeatedly supported is sometimes called a law. b. Consistent observations about a hypothesis may lead to a theory. c. Theories formed in everyday life carry the same validity as a scientific theory. d. Only one experimental variable is used in a controlled experiment. e. Published research should provide enough detail to allow anyone to repeat the experiment in the same manner.

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

The common name for "cat" in Spanish is "gato" and in Chinese is "mao." Which of the following statements pertaining to the use of scientific names instead of common names is false? Select one: a. Common names may include different sets of organisms. b. Scientific names can be known and recognized by all scientists throughout the world. c. To recognize an organism in the literature by its common name, a scientist would have to know multiple languages. d. The scientific name begins to tie the organism into related groups. e. The common name clearly identifies an organism as unique.

e. The common name clearly identifies an organism as unique.

Which statement concerning reproduction is false? Select one: a. Hereditary information is passed on to the next generation. b. Hereditary information is in the form of genes. c. The offspring of asexual organisms have the same genes as the single parent. d. The offspring of sexual organisms have roughly one half of the genes from each parent. e. The offspring of multicellular organisms tend to be identical to the parent.

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

Which of the following might plausibly be said by a scientist? Select one: a. Although no one else gets the same results as I do, since I get the results in my experiments, it is still science. b. Since all the accumulated body of data support it, a hypothesis is definitely "true." c. Test methods are unimportant since anyone can run another test; it is the results that make the substance of science. d. The test's results and conclusion finish the scientist's job; it is enough that a scientist alone now knows the results. e. There is always a possibility that a more advanced experiment might falsify any hypothesis.

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

As the human population size increases, Select one: a. ecosystems remain unaffected. b. fewer fossil fuels are burned and carbon dioxide levels remain constant. c. it becomes evident that preserving the biosphere has no benefit to humans. d. fewer ecosystems are destroyed, resulting in an abundance of biodiversity. e. biodiversity is adversely affected as humans have destructive effects on ecosystems.

e. biodiversity is adversely affected as humans have destructive effects on ecosystems.

Using technology in the field of agriculture has enabled farmers to feed a growing human population. Select one: True False

true