Portage Learning
PORTAGE Online Nursing & Health Sciences Education
Y O U R PAT H T O S U CC E S S B E G I N S H E R E
EST. 2016
BIOD 101 — General Biology I
M O D U L E 2 E X A M : O R G A N I S M S , TA XO N O M Y, P H Y LO G E N Y & E CO LO G Y
INSTITUTION Portage Learning COURSE CODE BIOD 101
PROGRAM Pre-Nursing / Health Sciences Pathway ACADEMIC YEAR
EXAM TITLE Module 2 — Organisms, Classification & TOTAL QUESTIONS 75+ Questions
Ecology
COURSE TITLE General Biology I FORMAT Multiple Choice / Definition
EXAMINATION INSTRUCTIONS
▸ Select the single best answer for each question.
▸ Questions cover characteristics of organisms, biological organization, Linnaean classification, domains/kingdoms, and
ecological cycles.
▸ Correct answers with detailed rationales are provided for comprehensive review.
▸ Pay close attention to distinctions between prokaryotic/eukaryotic domains and the three domains of life.
BIOD 101 MODULE 2 — ORGANISMS, TAXONOMY & BIOLOGICAL Questions 1 –
DIVERSITY 75+
1. An organism is defined as:
A. A group of cells working together.
B. An individual, living creature.
C. A collection of ecosystems.
D. A non-living component of the environment.
CORRECT ANSWER B — An individual, living creature
RATIONALE An organism is the fundamental unit of biological study — an individual living entity capable of carrying out
life processes independently. Organisms can be unicellular (bacteria) or multicellular (humans, plants).
2. Which of the following is NOT one of the most widely accepted characteristics of an organism?
A. Order.
B. Photosynthesis.
C. Regulation.
D. Reproduction.
CORRECT ANSWER B — Photosynthesis
RATIONALE The seven widely accepted characteristics of living organisms are: Order, Evolutionary Adaptation,
Regulation, Energy Processing, Growth and Development, Response to the Environment, and Reproduction.
Photosynthesis is a metabolic process found only in some organisms, not a universal characteristic.
, 3. The characteristic "Order" in living organisms refers to:
A. The ability to reproduce sexually.
B. Structures comprised of the basic unit of life — the cell.
C. The process of natural selection.
D. The regulation of body temperature.
CORRECT ANSWER B — Structures comprised of the basic unit of life — the cell
RATIONALE Order refers to the highly organized structure of living things. All organisms are composed of cells, which are
organized into a developmental hierarchy: cells → tissues → organs → organ systems. This structural
organization is a fundamental characteristic of life.
4. Evolutionary adaptation refers to:
A. An organism's ability to maintain homeostasis.
B. Smaller, genetic changes that allow for better survival of an organism (e.g., camouflage).
C. The process of cellular respiration.
D. The formation of new ecosystems.
CORRECT ANSWER B — Smaller, genetic changes that allow for better survival of an organism (e.g., camouflage)
RATIONALE Evolutionary adaptation refers to generational genetic changes that enhance survival and reproduction.
Examples include camouflage coloration in animals, antibiotic resistance in bacteria, and drought tolerance in
plants. These adaptations arise through natural selection over generations.
5. The characteristic "Regulation" in organisms includes:
A. Only reproduction.
B. Shivering to generate body heat and regulation of blood flow.
C. Only growth and development.
D. The formation of new species.
CORRECT ANSWER B — Shivering to generate body heat and regulation of blood flow
RATIONALE Regulation (homeostasis) is the maintenance of stable internal conditions. Examples include temperature
regulation through shivering or sweating, blood flow regulation, pH balance, and osmotic balance. Organisms
actively maintain optimal internal conditions despite environmental changes.
6. Energy processing in organisms is best described as:
A. The ability to reproduce.
B. The sum of all biochemical reactions, referred to as metabolism.
C. The response to environmental stimuli.
D. The process of cell division.
CORRECT ANSWER B — The sum of all biochemical reactions, referred to as metabolism
RATIONALE Energy processing involves the uptake and use of energy to sustain life. Metabolism encompasses all
biochemical reactions — catabolic (breaking down molecules for energy) and anabolic (building complex
molecules). All organisms require energy to maintain cellular functions.