BIO 253 (QUIZ 1) EXAM 2025/2026 –
COMPLETE EXAM QUESTIONS AND
VERIFIED ANSWERS
What're the levels of organization in order? (start to finish) - ANSWERAtom
Molecule
Macromolecule
Cell
Tissue
Organ
Organ System
Organism
What is a cell? - ANSWERIt is the structure of the basic function of the body
Add labels to diagram - ANSWERSuperior
Inferior
Medial
Lateral
Proximal
Distal
Posterior
Anterior
What're examples of the negative feedback loop? - ANSWERBody temperature, blood
pressure, hormones, and glucose
Negative Feedback Loop - ANSWERcauses a system to change in the opposite
direction from which it is moving in order for conditions to be toward normal range
What does the negative feedback loop do? - ANSWERPrevents sudden, severe
changes in the body
What're some examples of the positive feedback loop? - ANSWERBlood clotting, and
the uterine contractions of childbirth
What does the positive feedback loop do? - ANSWERIt is used to make changes but
produces unstable conditions.
COMPLETE EXAM QUESTIONS AND
VERIFIED ANSWERS
What're the levels of organization in order? (start to finish) - ANSWERAtom
Molecule
Macromolecule
Cell
Tissue
Organ
Organ System
Organism
What is a cell? - ANSWERIt is the structure of the basic function of the body
Add labels to diagram - ANSWERSuperior
Inferior
Medial
Lateral
Proximal
Distal
Posterior
Anterior
What're examples of the negative feedback loop? - ANSWERBody temperature, blood
pressure, hormones, and glucose
Negative Feedback Loop - ANSWERcauses a system to change in the opposite
direction from which it is moving in order for conditions to be toward normal range
What does the negative feedback loop do? - ANSWERPrevents sudden, severe
changes in the body
What're some examples of the positive feedback loop? - ANSWERBlood clotting, and
the uterine contractions of childbirth
What does the positive feedback loop do? - ANSWERIt is used to make changes but
produces unstable conditions.
