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Human Biology Exam 1 - Chapters 1-3 well answered to pass
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Human Biology Exam 1 - Chapters 1-3 well answered to pass
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Human Biology Exam 1 - Chapters 1-3five basic characteristics of life - correct answer ✔✔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 - correct answer ✔✔organized unit that can survive and reproduce by itself, using energy, necessary
raw materials, and DNA instructions
homeostasis - correct answer ✔✔state of overall internal chemical and physical stability that is required
for survival of cells and the body as a whole
primates - correct answer ✔✔-mammals
-excellent vision, excellent dexterity
(ex. humans, apes, other closely related animals)
vertebrates - correct answer ✔✔animals with backbones
3 domains of life - correct answer ✔✔Bacteria, Archaea, Eukarya
what organisms are in Eukarya? - correct answer ✔✔protists, plants, fungi, animals
hierarchy of life (basic to most complex) - correct answer ✔✔atom, molecule, cell, tissue, organ, organ
system, organism, population, community, ecosystem, biosphere
biosphere - correct answer ✔✔all parts of the Earth's waters, crust, and atmosphere in which organisms
live
, 7-step scientific method - correct answer ✔✔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 - correct answer ✔✔in an experiment, the group to which one or more experimental
groups are compared
sampling error - correct answer ✔✔distortion of experimental results, often because the sample size is
too small
variable - correct answer ✔✔a factor that can change over time or under different circumstances
scientific theory - correct answer ✔✔explanation of a broad range of related natural events and
observations that is based on repeated, careful testing of hypotheses
emerging disease - correct answer ✔✔disease caused by pathogens that until recently did not infect
humans or were present only in limited areas (many are caused by viruses)
antibiotic - correct answer ✔✔"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. - correct answer ✔✔DNA
A _____ is the smallest unit that can live and reproduce by itself using energy, raw materials, and DNA
instructions. - correct answer ✔✔cell
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