HESI A2 VERSION 2 BIOLOGY EXAM II 2026
SOLVED QUESTIONS ANSWERS GRADED A
PLUS SCIENTIFIC CONCEPTS HANDBOOK
◉ species.
Answer: most restrictive category
◉ hierarchic organizational system.
Answer: kingdom, phylum, class, order, family, genius, species
◉ steps to an experiment.
Answer: 1. observation
2. hypothesis
3. experiment
4. conclusion
◉ observation.
Answer: data is observed and recorded/ previous data is studied
◉ hypothesis.
Answer: a statement or explanation of certain events or happenings
,◉ experiment.
Answer: repeatable procedure of gathering data to support or refute
the hypothesis
◉ conclusion.
Answer: where the data and its significance are fully explained
◉ aqueous.
Answer: water based
◉ water molecule consists of.
Answer: two hydrogen atoms covalently bonded to one oxygen atom
◉ most significant aspect of water is.
Answer: the polarity of its bonds that allows for hydrogen bonding
between molecules
◉ specific heat.
Answer: the amount of heat necessary to raise the temperature of 1
gram of that molecule 1 degree celsius
, ◉ water has high specific heat due to.
Answer: the extent of hydrogen bonding between water molecules,
which allows waters to resist shifts in temperature (ability of oceans
or large bodies of water to stabilize climates)
◉ cohesion.
Answer: the ability of a molecule to stay bonded or attracted to
another molecule of the same substance (water running together on
a newly waxed car)
◉ adhesion.
Answer: the ability of water to bond to or attract other molecules or
substances (when water is sprayed onto the wall, some of it sticks to
the wall)
◉ when water freezes it forms.
Answer: lattice crystals; causing the molecules to spread apart,
resulting in the phenomenon of ice floating
◉ polarity of water allows it to act as an.
Answer: versatile solvent (used to dissolve a number of different
solvents)
◉ carbohydrates.
SOLVED QUESTIONS ANSWERS GRADED A
PLUS SCIENTIFIC CONCEPTS HANDBOOK
◉ species.
Answer: most restrictive category
◉ hierarchic organizational system.
Answer: kingdom, phylum, class, order, family, genius, species
◉ steps to an experiment.
Answer: 1. observation
2. hypothesis
3. experiment
4. conclusion
◉ observation.
Answer: data is observed and recorded/ previous data is studied
◉ hypothesis.
Answer: a statement or explanation of certain events or happenings
,◉ experiment.
Answer: repeatable procedure of gathering data to support or refute
the hypothesis
◉ conclusion.
Answer: where the data and its significance are fully explained
◉ aqueous.
Answer: water based
◉ water molecule consists of.
Answer: two hydrogen atoms covalently bonded to one oxygen atom
◉ most significant aspect of water is.
Answer: the polarity of its bonds that allows for hydrogen bonding
between molecules
◉ specific heat.
Answer: the amount of heat necessary to raise the temperature of 1
gram of that molecule 1 degree celsius
, ◉ water has high specific heat due to.
Answer: the extent of hydrogen bonding between water molecules,
which allows waters to resist shifts in temperature (ability of oceans
or large bodies of water to stabilize climates)
◉ cohesion.
Answer: the ability of a molecule to stay bonded or attracted to
another molecule of the same substance (water running together on
a newly waxed car)
◉ adhesion.
Answer: the ability of water to bond to or attract other molecules or
substances (when water is sprayed onto the wall, some of it sticks to
the wall)
◉ when water freezes it forms.
Answer: lattice crystals; causing the molecules to spread apart,
resulting in the phenomenon of ice floating
◉ polarity of water allows it to act as an.
Answer: versatile solvent (used to dissolve a number of different
solvents)
◉ carbohydrates.
