Biology 1408 Test 1 - Chapter 1

Rank the following levels of biological organization from smallest at the top to largest at the bottom. cell atom molecule organelle tissue organ

1 atom 2 molecule 3 organelle 4 cell 5 tissue 6 organ

What is deoxyribonucleic acid (DNA)?

A molecule that encodes genetic instruction

Example of Organism

Bacterial Cell

Example of Atom

Carbon

What is the term for all the populations of different species that occupy the same location at the same time?

Community

Example of Molecule

DNA

What biological level includes the living and nonliving compartments of a particular area?

Ecosystem

What process favors survival of specific individuals within a population based on inherited characteristics?

Natural selection

What is a structure consisting of tissues organized to interact and carry out specific functions?

Organ

What term refers to members of the same species living in the same place at the same time?

Population

Independent Variable

The manipulated portion of the experiment

Describe a cell:

The smallest unit that can be called life

True of false: Natural selection is a mechanism of evolution.

True

True or false: The ultimate energy source in most ecosystems is the sun.

True

Standardized variable

a parameter of the experiment that is held constant

In reproduction, what is transmitted to the offspring that will determine what the offspring are like? a) DNA b) energy c) lipids d) membranes

a) DNA

In multicellular organisms, an offspring undergoes a process called ________, in which multiple rounds of cell division produce a mature individual. a) growth and development b) homeostasis c) the biological hierarchy d) evolution by natural selection

a) growth and development

Which of the following is an example of a prediction resulting from the hypothesis, "The room is dark because the light bulb is burned out"? a)If I put in a new light bulb, the room will not be dark. b) Rooms are always dark when light switches are turned off. c) The room is dark because I have lost my visiion. If there is a power outage, then the room will be dark.

a)If I put in a new light bulb, the room will not be dark.

What type of reproduction passes the genetic information from only one parent to the offspring?

asexual reproduction

Select all of the following that are Domain names in the taxonomic hierarchy of life. a) Animalia b) Archaea c) Bacteria d) Plantae e) Eukarya

b) Archaea c) Bacteria e) Eukarya

Select all of the following that are organisms: a) fungus b) DNA c) plant d) bacterial cell

b) DNA

A(n) ________ is an inherited characteristic or behavior which enables an individual to survive better than without the inherited characteristic. a) heterotroph b) adaption c) domain d) organelle

b) adaption

Select all of the following that are ways to collect data in a scientific inquiry. a) form theories b) observation c) make conclustions d) experimentation

b) observation d) experimentation

Select all of the statements that are true about asexual reproduction a) Offspring are virtually identical to each other b)Two parents are required c) Genetic information comes from only one parent d) Genes from parents are mixed at each generation

b)Two parents are required d) Genes from parents are mixed at each generation

What are the small chemical units that can combine to form molecules? a) organelle b) Ecosystem c) atom d) tissue

c) atom

In a new environment, what types of organisms will survive under the force of natural selection? a) organisms that reproduce the fastest b) organisms without can reproduce asexually c) organisms with the highest reproductive success d) organisms that are the biggest

c) organisms with the highest reproductive success

A new combination of traits inherited from two parents is passed to offspring as a result of: a) all types of reproduction b) asexual reproduction c) sexual reproduction

c) sexual reproduction

Evolution has been operating on organisms since a) plants and other multicellular organisms arose b) vertebrates arose. c) the first cells formed. d) the 1800s

c. the first cells formed

A living that exhibits all five properties of life and is composed of one or more ______, the basic unit of life.

cells

What is evolution?

changes in genetic makeup of a population over multiple generations

What type of reproduction produces genetic diversity that can be advantageous in changing environments? a) metabolic b) bacterial c) asexual d) sexual

d) sexual

Different components of biological organization can interact to produce more complex functions called _________ properties:

emergent

The change in genes of a population over multiple generations can also be referred to as:

evolution

In the scientific method, a(n) ________ is an investigation carried out under controlled conditions to test a hypothesis.

experiment

Example of Organ System

heart and blood vessels

Using a process called ______ living organisms maintain a state of internal consistency or equilibrium such as a constant range of temperatures, nutrients, or water.

homeostasis

A tentative and testable explanation for an observation is called a(n) _________ and is an essential early step of a scientific study.

hypothesis

Biologist begin a study by asking questions and

making observations

The chemical reactions that occur within cells and allow organisms to build molecules and use energy for their activities are collectively called

metabolism

Atoms can bond together to form

molecules

Multiple organs are linked together into

organ systems

Compartments within cells that carry out specific functions are called

organelles

Example of Ecosystem

organisms, water, air, and nutrients in a desert area

Organisms that make their own food by obtaining energy and nutrients from non living sources are called

producers

A new combination of traits inherited from two parents is passed to offspring as a result of

sexual reproduction

Example of Community

the plants, animals, and microorganisms that inhabit a particular field

Dependent Variable

the response that an investigator measures

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

Organs are made up of

tissues

In an experiment, the response that an investigator measures and the treatment that an investigator manipulates are examples of

variables