Human Biology Exam 1 - Chapters 1-3
questions with correct answers.
five basic characteristics of life ANS - 1. take in energy and materials
2. sense and respond to changes in the environment
3. consist of one or more cells
4. maintain homeostasis
5. reproduce and gros
cell ANS - organized unit that can survive and reproduce by itself, using energy, necessary raw
materials, and DNA instructions
homeostasis ANS - state of overall internal chemical and physical stability that is required for survival of
cells and the body as a whole
primates ANS - -mammals
-excellent vision, excellent dexterity
(ex. humans, apes, other closely related animals)
vertebrates ANS - animals with backbones
3 domains of life ANS - Bacteria, Archaea, Eukarya
what organisms are in Eukarya? ANS - protists, plants, fungi, animals
hierarchy of life (basic to most complex) ANS - atom, molecule, cell, tissue, organ, organ system,
organism, population, community, ecosystem, biosphere
biosphere ANS - all parts of the Earth's waters, crust, and atmosphere in which organisms live
, 7-step scientific method ANS - 1. observation
2. question
3. develop a hypothesis (proposed explanation for an observation)
4. make a prediction
5. test the prediction
6. repeat the tests or develop new ones
7. analyze and report test results and conclusions
control group ANS - in an experiment, the group to which one or more experimental groups are
compared
sampling error ANS - distortion of experimental results, often because the sample size is too small
variable ANS - a factor that can change over time or under different circumstances
scientific theory ANS - explanation of a broad range of related natural events and observations that is
based on repeated, careful testing of hypotheses
emerging disease ANS - disease caused by pathogens that until recently did not infect humans or were
present only in limited areas (many are caused by viruses)
antibiotic ANS - "against a living thing" destroys living organisms such as bacteria and other
microorganisms, preventing them from growing
Instructions in _____ govern how organisms are built and function. ANS - DNA
A _____ is the smallest unit that can live and reproduce by itself using energy, raw materials, and DNA
instructions. ANS - cell
questions with correct answers.
five basic characteristics of life ANS - 1. take in energy and materials
2. sense and respond to changes in the environment
3. consist of one or more cells
4. maintain homeostasis
5. reproduce and gros
cell ANS - organized unit that can survive and reproduce by itself, using energy, necessary raw
materials, and DNA instructions
homeostasis ANS - state of overall internal chemical and physical stability that is required for survival of
cells and the body as a whole
primates ANS - -mammals
-excellent vision, excellent dexterity
(ex. humans, apes, other closely related animals)
vertebrates ANS - animals with backbones
3 domains of life ANS - Bacteria, Archaea, Eukarya
what organisms are in Eukarya? ANS - protists, plants, fungi, animals
hierarchy of life (basic to most complex) ANS - atom, molecule, cell, tissue, organ, organ system,
organism, population, community, ecosystem, biosphere
biosphere ANS - all parts of the Earth's waters, crust, and atmosphere in which organisms live
, 7-step scientific method ANS - 1. observation
2. question
3. develop a hypothesis (proposed explanation for an observation)
4. make a prediction
5. test the prediction
6. repeat the tests or develop new ones
7. analyze and report test results and conclusions
control group ANS - in an experiment, the group to which one or more experimental groups are
compared
sampling error ANS - distortion of experimental results, often because the sample size is too small
variable ANS - a factor that can change over time or under different circumstances
scientific theory ANS - explanation of a broad range of related natural events and observations that is
based on repeated, careful testing of hypotheses
emerging disease ANS - disease caused by pathogens that until recently did not infect humans or were
present only in limited areas (many are caused by viruses)
antibiotic ANS - "against a living thing" destroys living organisms such as bacteria and other
microorganisms, preventing them from growing
Instructions in _____ govern how organisms are built and function. ANS - DNA
A _____ is the smallest unit that can live and reproduce by itself using energy, raw materials, and DNA
instructions. ANS - cell
