TEST BANK FOR BIOLOGY 2E BY OPENSTAX BY MARY ANN, JUNG CHOI, MATTHEW DOUGLAS LATEST UPDATE

TEST BANK FOR BIOLOGY 2E BY OPENSTAX BY MARY ANN, JUNG
CHOI, MATTHEW DOUGLAS LATEST UPDATE



Wickyaplus stuvia

,Chapter 1: The Scienceof Life x x x x x




1. Which characteristic is common to all living organisms?
x x x x x x x



A. Ability to move voluntarily x x x



B. Presence of a nucleus x x x



C. Ability to reproduce x x



D. Presence of chloroplasts x x




Answer: C. Ability to reproduce x x x x



Rationale: All living organisms share fundamental characteristics, including repr
x x x x x x x x



oduction, metabolism, growth, and response to stimuli. While not all organisms ha
x x x x x x x x x x x x



ve a nucleus (prokaryotes lack one) or chloroplasts, reproduction is universal.
x x x x x x x x x x x




2. Which level of biological organization is correctly arranged from simplest to
x x x x x x x x x x



most complex?
x x



A. Organ → Cell → Tissue → Organ System
x x x x x x x



B. Cell → Tissue → Organ → Organ System
x x x x x x x



C. Tissue → Cell → Organ → Organ System
x x x x x x x



D. Organism → Organ System → Organ → Tissue x x x x x x x




Answer: B. Cell → Tissue → Organ → Organ System
x x x x x x x x x



Rationale: Biological organization progresses from simple to complex: cells form
x x x x x x x x x



tissues, tissues form organs, organs work in organ systems, and organ systems fu
x x x x x x x x x x x x x



nction in organisms.
x x x




3. Homeostasis is best described as: x x x x



A. The ability to produce energy
x x x x



B. Maintaining a stable internal environment x x x x



C. The process of evolution
x x x



D. The creation of new species
x x x x




Answer: B. Maintaining a stable internal environment
x x x x x x



Rationale: Homeostasis is the regulation of internal conditions such as temperatu
x x x x x x x x x x



re, pH, and fluid balance, despite changes in the external environment.
x x x x x x x x x x x

,4. The primary molecule for storing genetic information is:
x x A x x x x



A. Carbohydrates
B. Lipids
C. DNA
D. Proteins
Answer: C. DNA x x



Rationale: DNA (deoxyribonucleic acid) contains hereditary information that gui
x x x x x x x x



des growth, development, and reproduction in all living organisms.
x x x x x x x x x




5. Evolution explains: x



A. How individual organisms adapt during their lifetime
x x x x x x



B. How populations change over generations
x x x x



C. The immediate response of an organism to stimuli
x x x x x x x



D. The process of cellular respiration
x x x x




Answer: B. How populations change over generations
x x x x x x



Rationale: Evolution is the process bywhich populations of organisms change genetic
x x x x x x x x x x



ally over time due to natural selection, mutation, and other mechanisms.
x x x x x x x x x x x




6. Which of the following is a prokaryotic organism?
x x x x x x x



A. Amoeba
B. Bacterium
C. Algae
D. Yeast
Answer: B. Bacterium x x



Rationale: Prokaryotic cells lack a nucleus and membrane-
x x x x x x x



bound organelles, which is characteristic of bacteria. Amoebas, algae, and yeast ar e
x x x x x x x x x x x x



eukaryotic.
x




7. Which of the following best illustrates an emergent property?
x x x x x x x x



A. Chlorophyll in plants absorbing sunlight x x x x



B. Water molecules forming liquid
x x x

, C. Heart pumping blood as part of the circulatory system
x x x x x x x x



D. DNA replication x




Answer: C. Heart pumping blood as part of the circulatory system
x x x x x x x x x x



Rationale: Emergent properties arise when individual components interact to form a
x x x x x x x x x x



system with new functions. The heart alone cannot pump blood until organized i
x x x x x x x x x x x x x



nto a system.
x x x




8. Which scientific method step involves forming a testable statement?
x x x x x x x x



A. Observation
B. Hypothesis
C. Experiment
D. Conclusion
Answer: B. Hypothesis x x



Rationale: A hypothesis is a testable statement predicting a relationship between varia bles,
x x x x x x A x x x x x



based on prior observations.
x x x x




9. Which of these is an example of adaptation?
x x x x x x x



A. A plant wilting due to lack of water
x x x x x x x



B. Polar bears having thick fur in Arctic regions
x x x x x x x



C. A human learning to swim
x x x x



D. Bacteria dying from antibiotics x x x




Answer: B. Polar bears having thick fur in Arctic regions
x x x x x x x x x



Rationale: Adaptations are inherited traits that increase survival and reproduction in
x x x x x x x x x x



specific environments.
x x




10. The process bywhich organisms maintain internal conditions despite external
x x x x x x x x



changes is called:
x x x



A. Photosynthesis
B. Homeostasis
C. Metabolism
D. Evolution