Biology Chapter 1 Quiz
Rank levels of biological organization from smallest at the top to the largest at the bottom
1. Atom 2. Molecule 3. Organelle 4. Cell 5. Tissue 6. Organ
The variable of an experiment is:
A changeable element of an experiment.
Organisms seem so well-suited to their enviroments because they have inherited characteristics called _____, that enable them to successfully survive and reproduce.
Adaptations
What describes a community?
All the populations of different species that live in an area.
What describes a placebo?
An inert substance given to the control group in an experiment
What is the difference between asexual and sexual reproduction?
Asexual Reproduction: Genetic information comes from one parent only. Sexual Reproduction: Genetic information comes from two parents, unites to form an offspring.
Particles that make up molecules are called:
Atoms
What term refers to all parts of the planet that can support life?
Biosphere
Select all the following that are characteristics of a scientific theory:
Can be used to make predictions Encompass multiple hypotheses Supported by a large body of evidence Falsifiable
A living thing, or organism, exhibits certain properties of life and is composed of one or more, ______ the basic unit of life.
Cells
What is the basic unit of life and consists of a membrane enclosing water, DNA, and other chemicals?
Cells
The group in an experiment that is untreated and provides a basis for comparison is called the:
Control
In a scientific study, collecting and interpreting the data allows investigators to:
Decide if evidence supports the hypothesis.
The cells genetic instructions are encoded in a molecule called ____ and these instructions are used to produce proteins and allow the cell to carry out specialized functions.
Deoxyribonucleic Acid (DNA)
The image shows the data from a study in which different concentrations of vaccines were given to individuals, and the incidence of illness was measured. The incidence of illness observed, any rotavirus illness or severe rotavirus, is the:
Dependent variable
What stage would come the earliest in the life of an organism following fertilization and formation of an embryo?
Development
An area of forest, including the organisms that occupy it and the nonliving components of its area, it is an example of an:
Ecosystem
New complex functions and characteristics that arise when the lower level components of an organism interact are called _____ properties.
Emergent
All organisms use _____ to fuel growth and to sustain homeostasis which is a process that maintains internal constancy.
Energy
What domain is characterized by having unicellular and multicellular organisms whose cells contain a nucleus?
Eukarya
Change in the genetic makeup of a population over multiple generations can be referred to as:
Evolution
Hypotheses are often tested with an investigation called an:
Experiment
Match each description to the correct type of scientific study: discovery science or experimentation, as defined in the text.
Experimentation: Test of a hypothesis under controlled conditions. Discovery: Careful observations of the natural world.
Truth or False: Any structure that contains DNA & Proteins is alive.
False
The human body maintaining its temperature with narrow limits around 37 C is an example of:
Homeostasis
An experiment collects data to support or reject a _____, which is a tentative explanation of observations.
Hypothesis
The low, medium, and high concentrations of vaccine in an experiment shown comprise the _____ variable.
Independent
Match the following types of variables to their correct definiton
Independent variable: The manipulated portion of the experiment. Dependent variable: The response that an investigator measures Standardized Variable: A parameter of the experiment that is held constant
It can be difficult to scientifically study events that occurred in the past, and that left little evidence because
It can be hard to accurately re-create conditions from the past.
_____ is characterized by cellular organization, energy requirements, homeostasis, reproduction, growth, development, and evolution.
Life
Select all of the following that can interfere with the scientific method or the conclusions of study:
Misinterpretations of observations or results Closed mind about observations Biases of scientists
What is a group of joined atoms, such as DNA?
Molecule
Science helps us answer questions about the _____ world.
Natural
What is a mechanism of evolution in which certain individuals from a population exhibit enhanced reproductive success based on inherited characteristics?
Natural Selection
After compiling results form experiments or studies, researchers may use statistical theory to determine whether or not the results:
Occurred purely by chance
What is a structure consisting of tissues organized to interact and carry out specific functions?
Organ
If a bone is an example of an organ, then all the bones in the body are part of an:
Organ System
Compartments within cells that carry out specific functions are called:
Organelles
Match each eukaryotic group or kingdom with its appropriate description:
Plantae: Multicellular; almost all are autotrophic organisms. Animalia: Heterotrophs; obtain food by ingestion. Fungi: Heterotrophs; obtian food by external digestion Protista: Unicellular and multicellular organisms; autotrophic and heterotrophic organisms
What term refers to members of the same species living in the same place at the same time?
Population
What component of the scientific method is often written as an as-if statement?
Prediction
What is the difference between primary producer, consumer, and decomposer?
Primary Producer: Autotroph that obtains energy and nutrients from nonliving sources Consumer: Heterotroph that obtains energy and nutrients by eating other organisms Decomposer: Heterotroph that obtains energy and nutrients from waste and dead organisms
The number of individuals examined in an experiment is called a:
Sample Size
What uses evidence and experiments to test ideas and answer questions?
Scientific Method
Natural _____ is a mechanism of evolution in which certain individuals from a population exhibit enhanced reproductive success based on inherited characteristics.
Selection
Because it generates new combinations of traits, what type of reproduction can be a very successful strategy in environments where conditions change frequently?
Sexual Reproduction
When examining evolutionary relationships, taxonomists strive to classify organisms according to:
Shared common ancestors
What is the basic unit of classification and is denoted by a unique two-part scientific name?
Species
If researchers use statistical tests and determine that there is a low probability that their experimental results occurred purely by chance, then their results are:
Statistically significant
What is the definition of metabolism?
The chemical reactions within cell
What is Taxonomy?
The science of naming and classifying organisms
A _______ is an explanation for a natural phenomenon that has been well tested and ties together many hypotheses.
Theory
In science, whereas a hypothesis is a tentative explanation of an observation, a ______is a broader, well-tested explanation for a natural phenomenon backed by many lines of evidence.
Theory
What term would a biologist use to describe evolution?
Theory
All living organisms are organized into one of ______ domains.
Three
_____ are groups of specialized cells that function together.
Tissues
True or False: Development of new technologies is an application of scientific knowledge.
True
Truth or False: The ultimate energy source in most ecosystems is the sun.
True