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Chapters 1-4 Human Biology Exam(Chapters 1-4 of Human Biology: Concepts and Current Issues by Michael D. Johnson)fully solved rated A+ $17.99   Add to cart

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Chapters 1-4 Human Biology Exam(Chapters 1-4 of Human Biology: Concepts and Current Issues by Michael D. Johnson)fully solved rated A+

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  • Human biology
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  • Human Biology

Chapters 1-4 Human Biology Exam(Chapters 1-4 of Human Biology: Concepts and Current Issues by Michael D. Johnson)fully solved rated A+

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  • September 19, 2024
  • 14
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Human biology
  • Human biology
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Chapters 1-4 Human Biology
Exam(Chapters 1-4 of Human Biology:
Concepts and Current Issues by Michael
D. Johnson)

Characteristics of Life - correct answer ✔✔Different than nonliving things;

Require energy (ATP);

Composed of cells;

Homeostasis;

Respond to external environment;

Grow;

Reproduce;

Population evolves



Hypothesis - correct answer ✔✔A message expressing an opinion based on incomplete evidence



Scientific Method - correct answer ✔✔The process of science;

1)Observe and Generalize

2) Formulate Hypothesis

3)Make Testable prediction

4)experiment or observe

5)Modify and report



Homeostasis - correct answer ✔✔The maintenance of a constant internal environment within a narrow
range of chemical & physical conditions



Atoms - correct answer ✔✔Smallest functional unit of an element;

, Retains properties of element



Protons - correct answer ✔✔+ charged particles



Neutrons - correct answer ✔✔Neutrally charged particles



Electrons - correct answer ✔✔Smaller (-) charged particles that orbit the nucleus;

No precise location electron cloud



Elements - correct answer ✔✔Pure form of matter;

Can't be broken down



Atomic Number - correct answer ✔✔The number of protons in the nucleus of an atom



Covalent Bond - correct answer ✔✔Sharing of electrons

Strongest bond

Polar - Different charge on different parts of the molecule

Non Polar - Same charge on both ends



Ionic Bond - correct answer ✔✔a compound in which oppositely charged ions attract each other (atoms
gain or lose electrons to form ions) NaCl

Na gives electron to Cl --> Na(+)Cl(-)



Hydrogen - correct answer ✔✔H⁺



Atomic Mass - correct answer ✔✔Total mass of the protons and neutrons in an atom, measured in
atomic mass units



Dehydration Synthesis - correct answer ✔✔Process in which smaller molecules are joined together by
covalent bonds;

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