HESI A2 BIOLOGY EXAM Latest 2025/2026 COMPLETE FREQUENTLY MOST TESTED QUESTIONS WITH COMPLETE SOLUTION /GET IT 100% ACCURATE!(Graded A+)

HESI A2 BIOLOGY
Questions and Answers
Updated Latest (Verified Answers)




1. kingdom

Answer largest and most inclusive category
g g g g g




2. species

Answer most restrictive category
g g g




3. hierarchic organizational system
g g




Answer kingdom, phylum, class, order, family, ge- nius, species
g g g g g g g g




4. steps to an experiment
g g g




Answer 1. observation
g g




2. hypothesis

3. experiment

4. conclusion

5. observation

Answer data is observed and recorded/ previous data is studied
g g g g g g g g g




6. hypothesis
1g/g2
2

, Answer a statement or explanation of certain events or happenings
g g g g g g g g g




7. experiment

Answer repeatable procedure of gathering data to support or refute the hypothesis
g g g g g g g g g g g




8. conclusion

Answer where the data and its significance are fully explained
g g g g g g g g g




9. aqueous

Answer water based g g




10. water molecule consists of
g g g




Answer two hydrogen atoms covalently bonded to one oxygen atom
g g g g g g g g g




11. most significant aspect of water is
g g g g g




Answer the polarity of its bonds that allows for hydrogen bonding between molecules
g g g g g g g g g g g g




12. specific heat g




Answer the amount of heat necessary to raise the temperature of 1 gram of that molecule 1 d
g g g g g g g g g g g g g g g g g




egree celsius
g




13. water has high specific heat due to
g g g g g g




Answer the extent of hydrogen bonding between water molecules, which allows waters to re
g g g g g g g g g g g g g




sist shifts in temperature (ability of oceans or large bodies of water to stabilize climates)
g g g g g g g g g g g g g g




14. cohesion

2g/g2
2

, Answer the ability of a molecule to stay bonded or attracted to another molecule of the s
g g g g g g g g g g g g g g g g




ame substance (water running together on a newly waxed car)
g g g g g g g g g




15. adhesion

Answer the ability of water to bond to or attract other molecules or substances (when water is
g g g g g g g g g g g g g g g g g




sprayed onto the wall, some of it sticks to the wall)
g g g g g g g g g g




16. when water freezes it formsg g g g




Answer lattice crystals; causing the molecules to spread apart, resulting in the phenomenon
g g g g g g g g g g g g




g of ice floating
g g




17. polarity of water allows it to act as an
g g g g g g g g




Answer versatile solvent (used to dissolve a number of different solvents)
g g g g g g g g g g




18. carbohydrates

Answer longs chains, or polymers of sugar
g g g g g g




-used for storage, structure, and energy
g g g g g




-the backbone of important molecules such as DNA and RNA
g g g g g g g g g




19. lipids

Answer known as fats, but specifically they are fatty acids, phospholipids, and steroids
g g g g g g g g g g g g




20. fatty acids g




Answer Vary greatly but simply are grouped into two categories
g g g g g g g g g




3g/g2
2