General Biology 1 Final Exam Review
Cumulative Question and answers
already passed 2025/2026
Homeostasis Example (Negative Feedback Loop) - correct answer ✔Body Temperature is maintained in
a Human Body by a signal being sent to a Neuron in the Hypothalamus (37 degrees Celsius) by a sensory
receptor. Then the neuron sends a error signal (hormones or electrical signals) which causes the body to
shiver (if temp decreases) and sweat (if the temperature increases).
Growth and Development - correct answer ✔Humans have a notochord that is developed inside the
embryo that helps with vertebrae development.
Sensitivity - correct answer ✔Dugesia (Platelyheminthes), have eyespots that are used for sensing their
environment. They use a pigment that is created by photosensitive cells that help tell from light or dark.
Order Complexity - correct answer ✔Porifera (two layers thick-simple diffusion), Cnidaria,
Plateyhelminthes, Nematodes, Mollusca, Annelida, Arthopoda, Echinodermata, Chordata( most
complex, has the most complex respiratory medium ( lungs).
Energy Utilization - correct answer ✔Digestion of food to create e that create energy in the form of
sugars and other macromolecules that is transported throughout the cells.
7 Challenges that Animals have to face - correct answer ✔1. Responding to Internal and External
Stimuli
2. Intercellular Communication
3. Gas Exchange
4. Excretion of Wastes and Excesses
5. Acquiring Matter and Energy
6. Reproduction
Cumulative Question and answers
already passed 2025/2026
Homeostasis Example (Negative Feedback Loop) - correct answer ✔Body Temperature is maintained in
a Human Body by a signal being sent to a Neuron in the Hypothalamus (37 degrees Celsius) by a sensory
receptor. Then the neuron sends a error signal (hormones or electrical signals) which causes the body to
shiver (if temp decreases) and sweat (if the temperature increases).
Growth and Development - correct answer ✔Humans have a notochord that is developed inside the
embryo that helps with vertebrae development.
Sensitivity - correct answer ✔Dugesia (Platelyheminthes), have eyespots that are used for sensing their
environment. They use a pigment that is created by photosensitive cells that help tell from light or dark.
Order Complexity - correct answer ✔Porifera (two layers thick-simple diffusion), Cnidaria,
Plateyhelminthes, Nematodes, Mollusca, Annelida, Arthopoda, Echinodermata, Chordata( most
complex, has the most complex respiratory medium ( lungs).
Energy Utilization - correct answer ✔Digestion of food to create e that create energy in the form of
sugars and other macromolecules that is transported throughout the cells.
7 Challenges that Animals have to face - correct answer ✔1. Responding to Internal and External
Stimuli
2. Intercellular Communication
3. Gas Exchange
4. Excretion of Wastes and Excesses
5. Acquiring Matter and Energy
6. Reproduction
