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Practice questions for this set
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A bond formed by the sharing of electrons between atoms.
Choose an answer
What are the basic characteristics of What is the significance of water's high
1 2
life? heat capacity?
3 What is a covalent bond? 4 What are the three domains of life?
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Terms in this set (171)
What are the basic characteristics of Organization, Metabolism, Homeostasis, Response to
life? Stimuli, Reproduction & Development, Evolution.
What is the smallest unit of life? Cell.
What is natural selection? The process by which nature selects individuals that
survive based on advantageous traits.
, What is an adaptation? A modification in structure, function, or behavior that
makes an organism better suited to its environment.
What are the three domains of life? Archaea, Bacteria, Eukarya.
What distinguishes prokaryotic cells Prokaryotic cells lack a nucleus, while eukaryotic
from eukaryotic cells? cells have a nucleus.
What is the difference between Observational science involves watching and
observational and experimental recording data without interference, while
science? experimental science manipulates variables in a
controlled environment.
What is a hypothesis? A tentative, testable explanation for a phenomenon.
What is the null hypothesis? The hypothesis that states the experimental variable
has no effect.
What is the difference between a A scientific law describes what happens, while a
scientific theory and a scientific law? scientific theory explains why it happens.
What is peer review? The process where experts in the field review data
and methods before publication to ensure credibility.
What is an ionic bond? A bond formed by the transfer of electrons between
atoms, creating ions that attract each other.
What is a covalent bond? A bond formed by the sharing of electrons between
atoms.
What is the significance of water's high It helps organisms maintain internal temperature by
heat capacity? resisting temperature changes.
What is a buffer? A chemical that prevents drastic changes in pH to
maintain homeostasis.
What is the general formula for The ratio of Carbon:Hydrogen:Oxygen is 1:2:1,
carbohydrates? represented as (CH2O)n.