Human Biology Concepts
and Current Issues
(Chapter 1)
(2026-2027)
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, living things -have different molecular structure than nonliving things
-require energy and raw materials: metabolism
-are composed of cells
-maintain homeostasis
-respond to their external environment
-grow and reproduce
-population of living things evolve (evolution)
bacteria, archaea, eukarya According to their characteristics, living things are grouped. What are the three
domains?
Protista, animalia, fungi, plantae What four kingdoms make up the domain Eukarya?
membrane bound The domain Bacteria and domain Archaea lack a ____________
_________________ nucleus. (two words)
unicellular or multicellular number of cells can be classified as _______ or ________.
metabolism the sum of the chemical reactions occurring in the body cells.
protista Of the domain Eukarya, which kingdom is unicellular and simple mulitcellular,
eukaryotic (protozoa, algae, slime mods)?
plantae Of the domain Eukarya, which kingdom is multicellular, eukaryotic, and
photpsynthetic?
animalia Of the domain Eukarya, which kingdom is multicellular, eukaryotic, and
heterotrophic?
fungi Of the domain Eukarya, which kingdom is eukaryotic and decomposers? (mold,
yeasts, mushrooms)
Eukarya Humans are of what domain?
Animalia Humans are of what Kingdom?
Chordata Humans are of what Phylum?
Mammalia Humans are of what class?
Primates Humans are of what order?