30 Questions
What is the primary role of chlorophyll in photosynthesis?
Capture sunlight
Which process involves the transformation of carbon dioxide into sugars in photosynthesis?
Fixation of carbon dioxide
What is the main function of stomata in the process of photosynthesis?
Allow for the entry of carbon dioxide
What is the ultimate source of food created through photosynthesis?
Glucose
Which major event in photosynthesis involves the conversion of sunlight into chemical energy?
Fixation of carbon dioxide into sugars
How do plants utilize the excess glucose they produce in photosynthesis?
Store it in their leaves
Which of the following best describes the relationship between a food chain and a food web?
A food web is a more complex representation of energy transfer, with multiple interconnected food chains
What is the primary role of producers in an ecosystem?
To convert light energy into chemical energy through photosynthesis
Which of the following organisms would be considered a primary producer in a typical terrestrial ecosystem?
A phytoplankton in the ocean
What is the primary source of energy for the organisms in an ecosystem?
Chemical energy stored in organic compounds
Which of the following best describes the role of decomposers in an ecosystem?
Decomposers break down dead organic matter and recycle nutrients back into the ecosystem
Which of the following statements accurately describes the role of decomposers in an ecosystem?
Decomposers break down detritus and release nutrients back into the ecosystem.
Which of the following is a key characteristic of the feeding relationships represented in a food web?
Food webs illustrate the interdependence and interconnectedness of organisms within an ecosystem
In a food chain, what is the primary source of energy?
Producers
Which of the following organisms are likely to be decomposers in an aquatic ecosystem?
Bacteria, fungi, marine worms, and sea slugs
What is the primary difference between a food chain and a food web?
A food chain is a linear sequence, while a food web represents interconnected food chains.
Which statement accurately describes the transfer of energy in a food chain?
Energy is lost through processes like respiration as it moves through the food chain.
What is the primary difference between an aquatic and a terrestrial food chain?
The organisms involved in aquatic and terrestrial food chains are fundamentally different.
What is the definition of a trophic level within a food chain?
The level at which an organism resides in a food chain based on its relation to other organisms
Which category of organisms in a food chain can be described as 'umbrella' species?
Tertiary Consumers
In a terrestrial food chain, what role do primary consumers play?
Feed on producers or some parts of producing organisms
What distinguishes tertiary consumers from secondary consumers in a food chain?
Tertiary consumers are usually the top carnivores in a food chain
Which organisms initiate the food chain by transforming inorganic matter into organic matter?
Producers
According to the 'Ten Percent Law', approximately what percentage of energy is typically transferred from one trophic level to the next?
10%
What is the primary source of food for herbivores in a food chain?
Leaves, roots, seeds, or fruits
What is the primary reason for the decrease in energy availability at each successive trophic level?
A significant portion of energy is lost as heat during the life processes of organisms
Which of the following statements best explains the shape of an energy pyramid?
The shape represents the relative amount of energy available at each trophic level
Which of the following is NOT a reason for energy loss as it passes through trophic levels?
Predators are less efficient at capturing prey than prey are at capturing producers
In an oceanic energy pyramid, which trophic level would typically have the highest energy availability?
Phytoplankton
According to the information provided, which of the following statements is TRUE about energy transfer between trophic levels?
Energy is lost as it moves from a lower trophic level to a higher trophic level
Explore the interaction between organisms and their environment, focusing on feeding relationships in ecosystems. Learn about food chains, food webs, and ecological interactions such as symbiosis.
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