BIO 156 exam 1 (2025) comprehensive questions
and verified answers ( detailed & elaborated)
ACTUAL EXAM 2025 TEST!!
Define species: - ✔✔unique kind of organism
Explain order of taxa from most to least exclusive: - ✔✔Domain, Kingdom, Phylum, Class,
Order, Family, Genus, Species, Common name
Describe the two-part naming system currently used in taxonomy: - ✔✔It consists of genus
and species, ex: homo sapiens
Describe process of scientific method: - ✔✔critical thinking, science, hypothesis, prediction,
model, experiment
Difference between control and experimental group? - ✔✔Experimental: group of
individuals who are exposed to a variable
Control: group who is not being exposed to the variable
Define hypothesis: - ✔✔testable explanation of natural phenomenon
Define atom: - ✔✔building block of life
Define electron: - ✔✔negatively charged subatomic particle
Define proton: - ✔✔positively charged subatomic particle
, Define neutron: - ✔✔neutral charged
Define isotopes: - ✔✔forms of element that differ in number of neutrons their atoms carry
Define ions: - ✔✔atom that carries a charge because it has an unequal number of protons
and electrons
Where are protons and neutrons located? - ✔✔inside the nucleus
Where are electrons located? - ✔✔outside the nucles
Define chemical bond: - ✔✔attractive force that arises between two atoms when their
electrons interact
Ionic bond? - ✔✔chemical bond where a strong mutual attraction links ions of opposite
charge
Covalent bond? - ✔✔chemical bond where two atoms share a pair of electrons
Define hydrogen bond: - ✔✔attraction between covalently bonded hydrogen atom and
another atom taking part in a separate covalent bond
Explain hydrophilic molecules: - ✔✔dissolves easily in water
Explain hydrophobic molecules: - ✔✔resists dissolving in water
Which pH is considered neutral? - ✔✔7
and verified answers ( detailed & elaborated)
ACTUAL EXAM 2025 TEST!!
Define species: - ✔✔unique kind of organism
Explain order of taxa from most to least exclusive: - ✔✔Domain, Kingdom, Phylum, Class,
Order, Family, Genus, Species, Common name
Describe the two-part naming system currently used in taxonomy: - ✔✔It consists of genus
and species, ex: homo sapiens
Describe process of scientific method: - ✔✔critical thinking, science, hypothesis, prediction,
model, experiment
Difference between control and experimental group? - ✔✔Experimental: group of
individuals who are exposed to a variable
Control: group who is not being exposed to the variable
Define hypothesis: - ✔✔testable explanation of natural phenomenon
Define atom: - ✔✔building block of life
Define electron: - ✔✔negatively charged subatomic particle
Define proton: - ✔✔positively charged subatomic particle
, Define neutron: - ✔✔neutral charged
Define isotopes: - ✔✔forms of element that differ in number of neutrons their atoms carry
Define ions: - ✔✔atom that carries a charge because it has an unequal number of protons
and electrons
Where are protons and neutrons located? - ✔✔inside the nucleus
Where are electrons located? - ✔✔outside the nucles
Define chemical bond: - ✔✔attractive force that arises between two atoms when their
electrons interact
Ionic bond? - ✔✔chemical bond where a strong mutual attraction links ions of opposite
charge
Covalent bond? - ✔✔chemical bond where two atoms share a pair of electrons
Define hydrogen bond: - ✔✔attraction between covalently bonded hydrogen atom and
another atom taking part in a separate covalent bond
Explain hydrophilic molecules: - ✔✔dissolves easily in water
Explain hydrophobic molecules: - ✔✔resists dissolving in water
Which pH is considered neutral? - ✔✔7
