Biology Chapter 1 Quiz

The role of a control in an experiment is to A) provide a basis of comparison to the experimental group. B) prove that a hypothesis is correct. C) ensure repeatability. D) counteract the negative effect of the experiment.

A) provide a basis of comparison to the experimental group.

Which of the following statements about ecosystems is false? A) Energy cycles from organisms through the atmosphere and back to the organisms. B) Carbon cycles from the atmosphere through organisms and back to the atmosphere. C) Energy of sunlight is converted to energy stored in sugar molecules. D) Most energy that enters the ecosystem leaves the system as heat.

A)

Organisms that are prokaryotes are in the domains... A) Bacteria and Archaea. B) Plantae and Animalia. C) Eukarya and Archaea. D) Fungi and Bacteria.

A) Bacteria and Archaea.

Which of the following statements about ecosystems is false? A) Bacteria and fungi recycle energy within an ecosystem. B) Plants and other photosynthetic organisms are producers in ecosystems. C) Chemical nutrients cycle within an ecosystem. D) In the process of energy conversions within an ecosystem, some energy is converted to heat.

A) Bacteria and fungi recycle energy within an ecosystem.

Consider the following statement: If all vertebrates have backbones A) a hypothesis. B) rationalization. C) deductive reasoning. D) inductive reasoning.

A) a hypothesis

Organisms belonging to the kingdom Plantae A) are photosynthetic. B) obtain food by decomposing the remains of dead organisms and absorbing the nutrients. C) are unicellular and lack a nucleus. D) are multicellular and lack a nucleus.

A) are photosynthetic.

Which of the following is a kingdom within the domain Eukarya? A) Viruses B) Fungi C) Archaea D) Bacteria

B) Fungi

Which of the following statements is not consistent with Darwin's theory of natural selection? A) Individuals in a population exhibit variations, some of which are passed from parents to offspring. B) Individual organisms experience genetic change during their life spans to better fit their environment. C) Factors in the environment result in some organisms having better reproductive success than others. D) Natural selection can lead to the appearance of new species.

B) Individual organisms experience genetic change during their life spans to better fit their environment.

During a discussion about ecosystems, a student says, Plants eat sunlight A) Plants don't eat sunlight; they eat sugars that they get from the soil. B) Plants don't eat sunlight; they use it to make sugars. C) Plants eat sunlight, but they also eat other organism such as decomposers. D) Plants eat sunlight, but animals also eat bacteria, which are not considered organisms.

B) Plants don't eat sunlight; they use it to make sugars.

All the organisms on your campus make up A) an ecosystem B) a community C) a population D) the biosphere

B) a community

The tree in your backyard is home to two cardinals, a colony of ants, a wasp's nest, two squirrels, and millions of bacteria. Together, all of these organisms represent A) a species. B) a community. C) a population. D) an ecosystem.

B) a community.

A hypothesis is A) the same as a theory. B) a proposed explanation for a set of observations. C) an explanatory idea that is broad in scope and supported by a large body of evidence. D) a widely accepted idea about a phenomenon.

B) a proposed explanation for a set of observations.

Your instructor asks you to look into your microscope to see a prokaryotic cell. You will be looking for a cell that A) has a nucleus. B) has a membrane. C) makes up most of the tissues of your body. D) is much larger than most cells in your body.

B) has a membrane.

An antibiotic kills 99.9% of a bacterial population. You would expect the next generation of bacteria A) to be just as susceptible to that antibiotic as was the previous generation. B) to be more resistant to that antibiotic. C) to die out due to the drastic decrease in population size. D) to be more contagious than the prior generation.

B) to be more resistant to that antibiotic.

Which of the following statements is not an example of evolution that has resulted from human activity? A) Many strains of bacteria are now resistant to some commonly used antibiotics. B) Like certain other crops, domesticated strawberries are larger than wild strawberries. C) Because of hunting, organisms such as bears and wolves are fewer in number. D) Some insect species are now resistant to pesticides.

C)

Which of the following statements about genetics is true? A) Genes are proteins that produce DNA. B) DNA is made up of six different kinds of nucleotides. C) Differences among organisms reflect different nucleotide sequences in their DNA. D) Each DNA molecule is a single strand of nucleotides.

C) Differences among organisms reflect different nucleotide sequences in their DNA.

You notice that over the past month, many students on campus have started wearing a new style of school sweatshirt. You think to yourself that perhaps the bookstore has recently started selling this new sweatshirt style. This is an example of A) an experimental question. B) a type of observation. C) a hypothesis. D) an experiment.

C) a hypothesis.

Members of the kingdom Animalia A) can obtain their food either by absorption or by photosynthesis. B) are composed of cells that lack a cell membrane. C) can obtain their food by eating other organisms. D) make their own food through photosynthesis.

C) can obtain their food by eating other organisms.

If you eat a hamburger, you are mainly eating ground-up beef muscle. What levels of organization are represented in this ground-up muscle? A) organism, population, and community B) organ, organ system, and organism C) organelle, cell, and tissue D) tissue, organ, and organ system

C) organelle, cell, and tissue

A scientist performs a controlled experiment. This means that A) the experiment is repeated many times to ensure that the results are accurate. B) the experiment proceeds at a slow pace to guarantee that the scientist can carefully observe all reactions and process all experimental data. C) two versions of the experiment are conducted, one differing from the other by only a single variable. D) one experiment is performed, but the scientist controls the variables.

C) two versions of the experiment are conducted, one differing from the other by only a single variable.

In an ecosystem, energy A) cycles along with chemical nutrients. B) typically flows from consumers to producers to decomposers. C) typically flows from producers through a series of consumers. D) comes ultimately from bacteria.

C) typically flows from producers through a series of consumers.

Kingdom Fungi includes species A) such as mushrooms and plants. B) that obtain food by ingestion. C) that use photosynthesis to obtain food. D) that obtain food by decomposing dead organisms and absorbing the nutrients.

D)

Watching salt crystals form as ocean water evaporates, a student says, Look-more and more crystals are appearing. The ocean water is alive! Which of the following statements is an accurate evaluation of the student's remark? A) The student is correct: Crystals are ordered structures and they are reproducing, so the ocean water is alive. B) The student is correct because crystals are formed by processing energy from the sun to create new structures, so ocean water is alive. C) The student is incorrect because the solution is processing energy from the sun rather than gaining energy from other organisms, so the ocean water is not alive. D) The student is incorrect because all of the crystals reproduce the same kind of crystals with no variation to provide adaptation, so the ocean water is not alive.

D)

Which of the following statements about the domain Bacteria is true? A) Archaea belong to this domain. B) All bacteria have a membrane-bound nucleus. C) All bacteria are multicellular organisms. D) All bacteria lack a nucleus.

D)

Which of the following statements provides the best evidence that there is a common genetic code that demonstrates the unity of life? A) Bees, birds, and bats all have wings and fly. B) Bacteria, mushrooms, and cats all have DNA. C) Many insects can pollinate only a particular species of plant due to many generations of evolutionary adaptation. D) Through genetic engineering, a gene from a firefly can be inserted into a bacterium to make it glow.

D)

What is the difference between a tissue and an organ system? A) The tissue level of organization is more inclusive than the organ system level. B) Tissues are not composed of cells; organ systems are composed of cells. C) A tissue cannot exist unless it is a component of an organ system, whereas an organ system can exist independently of tissues. D) An organ system includes tissues.

D) An organ system includes tissues.

Which of the following statements about evolution is true? A) Individuals evolve within the span of their own lifetimes. B) Organisms evolve structures in response to needs. C) Evolution is deliberate and purposeful. D) Evolution can result in adaptations.

D) Evolution can result in adaptations.

Which of the following statements regarding a common cellular activity is false? A) Cells respond to the environment. B) Cells develop and maintain complex organization. C) Cells regulate their internal environment. D) New cells are derived from cellular components like organelles.

D) New cells are derived from cellular components like organelles.

Which of the following statements about the properties of life is false? A) Organisms have the ability to take in energy and use it. B) Organisms have the ability to respond to stimuli from the environment. C) Organisms have the ability to reproduce. D) Organisms have an unchanging, constant internal environment

D) Organisms have an unchanging, constant internal environment

The teeth of grain-eating animals (such as horses) are usually broad and ridged. This makes the teeth suitable for grinding and chewing. Meat-eating animals (such as lions) have pointed teeth that are good for puncturing and ripping flesh. This illustrates A) a result of natural selection only. B) the connection between form and function only. C) a food web. D) a result of natural selection as well as the connection between form and function.

D) a result of natural selection as well as the connection between form and function.

A theory is A) an idea that has been proven. B) a concept in the early stages that still needs to be tested. C) a description of a belief that invokes the supernatural. D) an explanation of an idea that is broad in scope and supported by a large body of evidence.

D) an explanation of an idea that is broad in scope and supported by a large body of evidence.

Which of these sequences is not a correct pathway of energy through an ecosystem? A) insects → birds → bacteria B) plants → insects → birds C) plants → birds → bacteria D) bacteria → plants → birds

D) bacteria → plants → birds

Basic science discoveries often lead to the development of technology, and the development of technology often leads to new scientific discoveries. Which of the following is not an accurate pairing of a technology and a discovery? A) measurement of atmospheric CO2 and understanding of climate change B) sequencing of genomes and understanding evolutionary relationships among organisms C) genetic engineering and creation of new drugs D) invention of the microscope and creation of evolutionary trees

D) invention of the microscope and creation of evolutionary trees

Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hierarchy from least inclusive to most inclusive? A) ecosystem, population, organ system, cell, community, molecule, organ, organism, organelle, tissue B) cell, molecule, organ system, organ, organelle, population, tissue, organism, ecosystem, community C) molecule, cell, organism, organ system, tissue, population, organ, organelle, community, ecosystem D) molecule, organelle, cell, tissue, organ, organ system, organism, population, community, ecosystem

D) molecule, organelle, cell, tissue, organ, organ system, organism, population, community, ecosystem

To be scientifically valid, a hypothesis must be A) part of a theory. B) controlled. C) reasonable. D) testable and falsifiable.

D) testable and falsifiable.