Characteristics of Life Quiz
Questions: 16 · 10 minutes
1. Which observation best demonstrates biological growth rather than a temporary change in size?
A seedling produces new cells and adds permanent stem tissue
A dry sponge expands after absorbing water
A balloon enlarges when air is added
A metal lid expands while being heated
2. Fire can spread, use fuel, and release energy. Why are these traits alone insufficient to classify fire as living?
Living things never release heat while using energy
Living things must be able to move from place to place
Life also involves cellular organization and inherited biological information
Anything that uses oxygen is automatically nonliving
3. Two corn plants produce offspring that resemble them in leaf shape because biological instructions were passed to the offspring. What carries most of this inherited information?
Stored nutrients
DNA
Environmental stimuli
Cellular waste products
4. A lizard moves from a cool shaded rock to a sunlit surface, and its body temperature rises. Which interpretation best connects this behavior to a characteristic of life?
It shows reproduction in response to temperature
It is a response that helps regulate internal conditions
It proves the lizard's genes changed during the day
It shows growth caused by absorbing sunlight
5. A fertilized egg progresses through an ordered sequence of cell divisions and changes in cell specialization. Which characteristic is most clearly shown?
Response to a stimulus
Population adaptation
Growth and development
Environmental homeostasis
6. Which statement best explains why reproduction is considered a characteristic of life?
Reproduction enables biological lineages to continue across generations
Reproduction keeps an organism's internal conditions constant
Every individual organism must reproduce in order to remain alive
Only organisms that reproduce sexually pass on hereditary information
7. How can a single-celled organism satisfy the characteristic of cellular organization?
It is considered living only while it is reproducing
It temporarily joins other cells to form permanent organs
It contains tissues that divide work among organ systems
Its one cell performs the functions necessary for that organism's life
8. Researchers place germinating seeds in a sealed measuring chamber and detect oxygen consumption and carbon dioxide production. Which conclusion is best supported?
The seeds are evolving new traits during the measurement
The seeds are carrying out energy-releasing metabolic processes
The seeds maintain identical internal and external gas concentrations
The seeds are reproducing because gas levels changed
9. After many generations of antibiotic exposure, a bacterial population contains a higher proportion of resistant bacteria. Which characteristic of life does this illustrate?
Every bacterium grows larger when antibiotics are present
Individual bacteria intentionally develop needed traits
Bacterial cells maintain an unchanging internal state
Populations evolve over generations
10. A caterpillar transforms into a butterfly according to an inherited sequence of biological changes. Which characteristic does this most directly represent?
Development through an organized life-cycle transition
Evolution within a single organism's lifetime
Maintenance of a fixed external environment
Reproduction without inherited information
11. A houseplant bends toward light coming through a window. Which characteristic of life does this most directly demonstrate?
Response to a stimulus
Reproduction
Hereditary variation
Cellular respiration
12. After a carbohydrate-rich meal, rising blood glucose triggers responses that help bring it back toward its usual range. This is an example of:
an inherited mutation accumulating over generations
reproduction through duplication of body cells
growth caused by nutrient storage
feedback that contributes to homeostasis
13. During a run, a person's body begins sweating as body temperature rises. What characteristic of life is most directly illustrated?
Growth through an increase in cell number
Evolution through natural selection
Homeostasis through temperature regulation
Reproduction through cell division
14. Yeast cells break down sugar and transfer some of its chemical energy into usable cellular forms. Which characteristic of life does this show?
A response to external pressure
Transmission of hereditary information
Energy processing through metabolism
Maintenance of a constant population size
15. What is the smallest structural unit that can independently carry out all basic processes of life?
An organelle
A cell
A tissue
A molecule
16. Both a crystal and a living organism can increase in size. What most clearly distinguishes biological growth from crystal growth?
Only crystals require matter from their surroundings
Only living organisms can become visibly larger
Living organisms grow only by attaching material to their outer surfaces
Living growth is directed by cellular processes such as cell division or enlargement