1.
Which of the following best describes an object that at one point in its existence possessed the 5 characteristics of life required for an individual, but no longer possesses these same 5 characteristics of life?
Correct Answer
F. Once Living
Explanation
An object that was once living refers to something that was once alive but no longer possesses the characteristics of life. This could be a plant that has died or an animal that has passed away. Once living objects were once classified as living organisms because they exhibited the five characteristics of life, which include growth, reproduction, response to stimuli, metabolism, and organization. However, they no longer possess these characteristics, making them non-living entities.
2.
A squirrel is running across a road when it is hit by a truck and killed. The driver of the truck pulls over to the side of the road to check on the squirrel but there is nothing he can do. Which of the following best indicates the correct states of life of the items listed?
Correct Answer
B. Truck: Never Living
Squirrel Before Crossing the Road: Living
Driver: Living
Squirrel After Crossing the Road: Once Living
Explanation
The correct answer indicates that the truck is never living because it is an inanimate object and does not possess the characteristics of living organisms. The squirrel is described as living before crossing the road because it is depicted as running across the road. The driver is also described as living because they pull over to check on the squirrel. The squirrel is described as once living after crossing the road because it is hit by the truck and killed.
3.
Examine the following list of objects. Identify the three categories, in order, into which they belong?
Correct Answer
D. Dried Flowers: Once Alive
Algae: Living
Bacteria: Alive
Explanation
The correct answer is Dried Flowers: Once Alive, Algae: Living, Bacteria: Alive. This is because dried flowers were once alive but are now dead, algae is a living organism, and bacteria is also a living organism.
4.
Which of the following is/are NOT characteristics of life? (Select ALL that are correct).
Correct Answer(s)
A. Movement
C. Acclimation
Explanation
Movement and acclimation are not characteristics of life. Movement refers to the ability of an organism to change its position or location, which is not a defining characteristic of life as there are many organisms that do not exhibit movement, such as plants. Acclimation refers to the ability of an organism to adjust to changes in its environment, which is also not a defining characteristic of life as there are organisms that cannot acclimate to their environment but are still considered alive. The other options, development, biological organization, and reproduction, are all characteristics that are commonly associated with life.
5.
Which of the following is an appropriate 'response to stimuli' for a dog on a hot day? (Select ALL that are correct).
Correct Answer(s)
A. Lowering its body temperature by panting (a dog's version of sweating)
B. Finding & Laying down in a shade
C. Locating & drinking water
Explanation
On a hot day, a dog can respond to stimuli by lowering its body temperature through panting, as this is their way of sweating. They can also find a shady spot and lay down to avoid direct sunlight and reduce their body heat. Additionally, they can locate and drink water to stay hydrated and cool themselves down. However, altering their DNA to have less fur is not a response to stimuli for a dog on a hot day.
6.
An organism increases in size, mass, and number of cells.This is an example of which characteristic of life?
Correct Answer
A. Growth
Explanation
An organism increasing in size, mass, and number of cells is an example of growth. Growth refers to an increase in physical size or mass of an organism over time. It involves the addition of new cells or the enlargement of existing cells. Development, on the other hand, refers to the process of maturation and differentiation of cells and tissues. Responding to stimuli refers to an organism's ability to react to changes in its environment. Reproduction is the ability to produce offspring. Homeostasis is the maintenance of a stable internal environment. Movement refers to the ability to change position or location.
7.
While walking down the street a car "Backfires" and you scream and run away. This is an example of which COL?
Correct Answer
E. Respond to Stimuli
Explanation
The scenario described in the question involves a stimulus (the car backfiring) and a response (screaming and running away). This aligns with the concept of "Respond to Stimuli," which refers to the ability of organisms to react to external stimuli in their environment. In this case, the individual's response of screaming and running away is a direct reaction to the stimulus of the car backfiring.
8.
Which of the following is the smallest structural unit of life that maintains all the properties of life?
Correct Answer
C. Cells
Explanation
Cells are the smallest structural unit of life that maintain all the properties of life. They are the basic building blocks of all living organisms and are responsible for carrying out all the necessary functions of life, such as growth, reproduction, and metabolism. Cells are capable of independent existence and can perform all the essential activities required for life, including obtaining and utilizing energy, responding to their environment, and maintaining homeostasis.
9.
As the sun movies across the sky, this sunflower will bend and twist so that it is always facing the sun. This can best be describes as which COL?
Correct Answer
E. Responding to Stimuli
Explanation
The given scenario describes the sunflower's ability to bend and twist in order to face the sun as it moves across the sky. This behavior is a response to the stimulus of sunlight, indicating that the sunflower is reacting to its environment. Therefore, the best way to describe this behavior is "Responding to Stimuli."
10.
Over time a single cell increases in size and mass. This can best be described as which COL?
Correct Answer
B. Growth
Explanation
The given statement describes the process of a single cell increasing in size and mass over time. This process is commonly referred to as growth.
11.
Why do the offspring (babies) in a species often resemble the parent organisms that are best suited to their enviroment?
Correct Answer
B. The organisms best suited to the environment are more likely to survive and reproduce
Explanation
Offspring often resemble parent organisms that are best suited to their environment because these organisms have traits that enable them to survive and reproduce successfully in that particular environment. Through the process of natural selection, individuals with advantageous traits are more likely to survive and pass on these traits to their offspring, increasing the overall fitness of the population. This leads to a higher proportion of offspring inheriting these beneficial characteristics, resulting in a resemblance between parent and offspring organisms.
12.
Which of the CHARACTERISTICS OF LIFE are required for an individual within a species? (Select ALL that are correct).
Correct Answer(s)
B. Develop and Grow
C. Respond to Stimuli
F. Obtain Convert and Use Energy
Explanation
The characteristics of life that are required for an individual within a species are to develop and grow, respond to stimuli, and obtain, convert, and use energy. These characteristics are essential for the survival and functioning of an individual organism. Development and growth allow an organism to mature and reach its full potential. Responding to stimuli enables an organism to interact with its environment and adapt to changes. Obtaining, converting, and using energy is necessary for the organism to carry out various biological processes and maintain its life functions.
13.
Which of the Characteristics of life are required for the species but are NOT necessary for the individual?
Correct Answer(s)
A. Adapt
D. Reproduce
Explanation
Adaptation is a characteristic of life that is required for the survival of a species as a whole, but it is not necessary for an individual organism. Adaptation refers to the ability of a species to adjust to changes in its environment over time, allowing it to better survive and reproduce. While individuals within a species may exhibit some level of adaptation, it is the collective adaptations of the species that ensure its long-term survival. Reproduction, on the other hand, is necessary for the continuation of a species but is not required for the survival of an individual organism.
14.
Which of the following is true? (Select the TWO responses that are correct).
Correct Answer(s)
C. Plants use both cellular respiration and pHotosynthesis
F. Animals use cellular respiration only
Explanation
Plants use both cellular respiration and photosynthesis because they need to generate energy through cellular respiration when there is no sunlight for photosynthesis. Animals use cellular respiration only because they are unable to perform photosynthesis and rely on consuming plants or other animals for energy.
15.
Which of the following chemical processes produces the energy needed for almost all living things?
Correct Answer
A. pHotosythesis
Explanation
Photosynthesis is the correct answer because it is the process by which plants and some other organisms convert sunlight, carbon dioxide, and water into glucose and oxygen. This glucose is then used as a source of energy for almost all living things through cellular respiration. Combustion, consuming plants, and digestion are all processes that can release energy, but they are not the primary processes responsible for producing the energy needed for almost all living things.
16.
Which of the following is the balanced chemical equation for CELLULAR RESPIRATION?
Correct Answer
E. 6 O2 + C6H12O6 --> 6 CO2 + 6 H2O +ATP
Explanation
The given equation represents the process of cellular respiration, where glucose (C6H12O6) and oxygen (O2) are converted into carbon dioxide (CO2), water (H2O), and ATP (adenosine triphosphate). This equation follows the law of conservation of mass, as the number of atoms of each element is balanced on both sides of the equation.
17.
Which of the following undergo cellular respiration?
Correct Answer(s)
A. Cats
B. Roses
C. Fish
D. Eagles
Explanation
All living organisms, including cats, roses, fish, and eagles, undergo cellular respiration. Cellular respiration is the process by which cells convert glucose and oxygen into carbon dioxide, water, and energy in the form of ATP. This energy is essential for the functioning and survival of all living organisms. Therefore, all the given options undergo cellular respiration.
18.
Which is the chemical equation for CELLULAR RESPIRATION?
Correct Answer
A. C6H12O6 + 6 O2 --> 6 CO2 + 6 H2O + ATP
Explanation
The given chemical equation for cellular respiration is C6H12O6 + 6 O2 --> 6 CO2 + 6 H2O + ATP. This equation represents the process of cellular respiration, where glucose (C6H12O6) and oxygen (O2) are converted into carbon dioxide (CO2), water (H2O), and ATP (energy). This equation is balanced, with 6 molecules of carbon dioxide, 6 molecules of water, and 6 molecules of oxygen produced for every molecule of glucose and oxygen consumed. The inclusion of ATP in the equation indicates that energy is released during cellular respiration.
19.
Which is the chemical equation for PHOTOSYNTHESIS?
Correct Answer
B. 6 CO2 + 6 H2O --> C6H12O6 + 6 O2
Explanation
The chemical equation for photosynthesis is 6 CO2 + 6 H2O --> C6H12O6 + 6 O2. This equation represents the process of photosynthesis, where carbon dioxide and water are converted into glucose (C6H12O6) and oxygen (O2) using light energy. This equation is balanced, with 6 molecules of carbon dioxide and water on the reactant side and 1 molecule of glucose and oxygen on the product side.
20.
What are the reactants (the things needed) for photosynthesis?
Correct Answer(s)
A. Oxygen
B. Water
C. Sunlight
Explanation
Photosynthesis is the process by which plants convert sunlight, water, and carbon dioxide into glucose and oxygen. Oxygen is released as a byproduct, while water and sunlight are necessary reactants for the process. Carbon dioxide is also required for photosynthesis, but it is not listed as an answer option. Glucose and ATP are products of photosynthesis, not reactants.
21.
Which of the following is true?(Check all the boxes that apply)
Correct Answer(s)
C. Plants use both pHotosynthesis and cellular respiration
E. Animals use cellular respiration only
Explanation
Plants use both photosynthesis and cellular respiration to obtain energy. Photosynthesis is the process by which plants convert sunlight, water, and carbon dioxide into glucose and oxygen. This glucose is then used in cellular respiration, where it is broken down to release energy for the plant's metabolic processes. Animals, on the other hand, do not have the ability to perform photosynthesis. They rely solely on cellular respiration to obtain energy by breaking down glucose or other organic molecules. Therefore, the correct answer is that plants use both photosynthesis and cellular respiration, while animals use cellular respiration only.
22.
Why do plants need to undergo photosynthesis?
Correct Answer
C. To create glucose
Explanation
Plants need to undergo photosynthesis to create glucose. During photosynthesis, plants use sunlight, water, and carbon dioxide to produce glucose, a type of sugar that serves as a source of energy for the plant. Glucose is essential for the plant's growth, development, and overall functioning. It is used as a building block for other important molecules, such as cellulose, which forms the plant's cell walls. Additionally, glucose can be stored as starch for later use, providing a reserve of energy for times when sunlight is not available.
23.
Living organisms require a fuel source that can be converted into ATP energy. What is that fuel?
Correct Answer
F. Glucose
Explanation
Living organisms require a fuel source that can be converted into ATP energy. Glucose is the primary fuel source for most living organisms. It is broken down through a process called cellular respiration to produce ATP, which is the energy currency of cells. Glucose is a carbohydrate that can be easily metabolized by cells to release energy. Other options like ATP, oxygen, sunlight, carbon dioxide, and water are important for various biological processes, but they are not the primary fuel source for ATP production.
24.
Which of the following is/are NOT a characteristic(s) of life? (Select ALL that are correct).
Correct Answer(s)
A. Movement
D. pHotosythnthesis
Explanation
Movement and Photosynthesis are not characteristics of life. Movement is not a universal characteristic of all living organisms, as some organisms like plants and fungi are sessile and do not exhibit active movement. Photosynthesis, on the other hand, is a metabolic process performed by autotrophic organisms such as plants, algae, and some bacteria, but it is not a defining characteristic of all living things. Adaptation and Development, however, are characteristics of life. Adaptation refers to the ability of organisms to adjust to their environment over time, while Development refers to the growth and maturation of an organism from birth to adulthood.
25.
How does the image of these tadpoles demonstrate the COL of Development?
Correct Answer
D. New structures such as legs are forming
Explanation
The image of tadpoles forming new structures such as legs demonstrates the COL of Development because it shows the process of growth and differentiation. During development, organisms go through various stages where new structures and organs are formed. In this case, the formation of legs indicates that the tadpoles are undergoing metamorphosis and transitioning into their adult form. This process is a crucial aspect of development, as it allows organisms to adapt and survive in their environment.
26.
Which of the following COL best describes the sequence of events in the image?
Correct Answer
B. Responds to stimuli
Explanation
The correct answer is "Responds to stimuli" because the image shows a series of events that involve a reaction or response to external stimuli. The sequence starts with development, followed by the ability to respond to stimuli, then reproduction, growth, homeostasis, and finally adaptation. This suggests that the organism in the image goes through a process of developing, reacting to its environment, reproducing, growing, maintaining internal balance, and adapting to its surroundings.
27.
Which of the following organisms undergo cellular respiration? (Select ALL that are correct).
Correct Answer(s)
A. Shark
B. Daisies (flower)
C. Zebra
D. Worms
Explanation
All of the organisms listed, including sharks, daisies (flowers), zebras, and worms, undergo cellular respiration. Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water. This process occurs in all living organisms, including both plants and animals, to release energy for various cellular activities. Therefore, all the organisms mentioned in the question undergo cellular respiration.
28.
From the list below, select all that are characteristics common in ALL living things? (Select ALL that are correct).
Correct Answer(s)
B. Development
D. Biological Organization
E. Reproduction
G. Cells
H. Adapt
J. Respond to Stimuli
Explanation
Living things exhibit development, biological organization, reproduction, cells, adaptability, and the ability to respond to stimuli. These characteristics are common to all living organisms. Movement, acclimation, photosynthesis, and communication are not universal characteristics of all living things.
29.
From the list below, select ALL of the characteristics of life that you (as an INDIVIDUAL) are doing/satisfying right now. (Select ALL that are correct)
Correct Answer(s)
B. Grow and Develop
C. Respond to Stimuli
E. Biologically Organized
F. Made of Cells
G. Using Energy
Explanation
The individual is currently satisfying the characteristics of life such as growing and developing, responding to stimuli, being biologically organized, being made of cells, and using energy.
30.
ALL of the energy that you eventually obtain (through the food that you eat) ultimately comes from what types of organisms?
Correct Answer
B. Green plants
Explanation
Green plants are the primary producers in the food chain, meaning they are capable of converting sunlight into chemical energy through the process of photosynthesis. This energy is then transferred to other organisms when they consume these plants or consume other organisms that have consumed plants. Therefore, all of the energy that is obtained through the food we eat ultimately comes from green plants.
31.
Which of the following is NOT a Characteristic of Life?
Correct Answer
D. Movement
Explanation
Movement is not a characteristic of life because not all living organisms are capable of movement. While many organisms, such as animals, exhibit movement, there are also many organisms, such as plants, fungi, and certain bacteria, that do not have the ability to move. Therefore, movement cannot be considered a universal characteristic of life.
32.
Select the Characteristics of Life listed below that doesn't apply to you (as an INDIVIDUAL), but only to our SPECIES (human beings).
Correct Answer
A. Reproduce
Explanation
The characteristic of life that doesn't apply to an individual but only to our species (human beings) is "Reproduce." While humans as a species reproduce, not every individual within the species reproduces. Some individuals may choose not to have children or may be unable to reproduce due to various reasons. Therefore, this characteristic applies to the species as a whole rather than to each individual.