EXAM AND PRE-ASSESSMENT EXAM
2025 | ACTUAL EXAM COMPLETE
300+ QUESTIONS WITH DETAILED
VERIFIED ANSWERS (100% CORRECT
ANSWERS)
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Non-living, may be within or made by a living organism. -
Answer
Abiotic
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Living. Matter is considered ______ if it was ever alive at some
point in time -
Answer
Biotic
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, Smallest level. The basic unit of matter. Consists of a dense
nucleus surrounded by electrons. -
Answer
Atom
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Second level. A chemical structure consisting of at least two
atoms held together by a chemical bond. -
Answer
Molecule
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Third level. Biologically important molecules that are
technically polymers. Example: DNA. -
Answer
Macromolecule
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Fourth level. The fundamental unit of life. Essentially a tiny
droplet of water and other molecules enclosed by a fluid "skin"
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, or membrane. The smallest and simplest entity that possesses
all the characteristics of life. -
Answer
Cell
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Fifth level. Compartments inside the cell that contain specific
groups of macromolecules and carry out specific cellular
functions. One of these organelles is the nucleus; it encloses the
DNA within the cell. -
Answer
Organelle
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Sixth level. Single-celled life form. Consists of just one cell and
include unicellular organisms such as bacteria and protists. -
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Microorganism
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3
, Seventh level. Formed when similar cells work together to
fulfill the same detailed function. -
Answer
Tissue
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Eighth level. Collections of tissues that work together to carry
out a common general function. Present not only in higher level
animals but also in plants. -
Answer
Organ
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Ninth level. Consists of functionally related organs. Mammals
have many. -
Answer
Organ System
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Tenth Level. Individual living entities that survive and
reproduce as a unit. For example, each tree in a forest. -
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