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