1. Which is the most complete model of feeding relationships?
a.) food web
b.) food chain
c.) food pyramid
d.) all of the above
2. _____ eat consumers only, while _____ eat both consumers and producers.
a.) Producers; carnivores
b.) Carnivores; omnivores
c.) Herbivores; carnivores
d.) Omnivores; carnivores
3. Carbon _____ through the carbon cycle.
a.) increases in quantity
b.) decreases in quantity
c.) follows various paths
d.) all of the above
4. Bacteria nodules associated with certain plants change _____ from the air into a form that can be used by most organisms.
a.) carbon dioxide
b.) oxygen
c.) nitrogen
d.) water vapor
5. Which organisms in a food chain have the least available energy?
a.) those in the first link
b.) those in the middle links
c.) All have the same amount of available energy.
d.) those in the last link
I think the answers are:
2. b
3. c
I need to know 1, 4, and 5, and I need the answers for 2 and 3 to be verified...please, pinky promise?
so what are the answers?
To find the correct answers, let's analyze each question:
1. Which is the most complete model of feeding relationships?
To determine the most complete model of feeding relationships, we need to understand the differences between the given options: food web, food chain, and food pyramid.
- A food chain is a linear sequence that shows the transfer of energy from one organism to another. However, it is simplistic and does not capture the complexity of real ecosystems.
- A food pyramid, also known as an ecological pyramid, represents the relative energy flow between trophic levels within an ecosystem.
- A food web is a more comprehensive representation of feeding relationships and shows the interconnectedness between different food chains in an ecosystem. It includes multiple food chains and provides a more realistic understanding of the interactions between organisms.
Based on these definitions, the answer to question 1 is: a) food web.
2. _____ eat consumers only, while _____ eat both consumers and producers.
To identify which organisms eat only consumers and which eat both consumers and producers, let's analyze the options:
- Producers are organisms that can produce their own food through photosynthesis (e.g., plants).
- Carnivores are organisms that solely consume other consumers (e.g., lions).
- Omnivores are organisms that consume both consumers and producers (e.g., humans).
- Herbivores are organisms that solely consume producers (e.g., cows).
By analyzing these definitions, we can conclude that the answer to question 2 is: d) Omnivores; carnivores.
3. Carbon _____ through the carbon cycle.
To determine the behavior of carbon in the carbon cycle, let's analyze the given options:
- Carbon increases in quantity.
- Carbon decreases in quantity.
- Carbon follows various paths.
Carbon follows various paths through the carbon cycle, including processes like photosynthesis, respiration, decomposition, and combustion. It can be transferred between organisms, the atmosphere, the ocean, and the Earth's crust.
Thus, the answer to question 3 is: c) follows various paths.
4. Bacteria nodules associated with certain plants change _____ from the air into a form that can be used by most organisms.
To identify the process performed by bacteria nodules associated with certain plants, let's analyze the given options:
- Bacteria nodules associated with certain plants change carbon dioxide from the air into a form that can be used by most organisms.
- Bacteria nodules associated with certain plants change oxygen from the air into a form that can be used by most organisms.
- Bacteria nodules associated with certain plants change nitrogen from the air into a form that can be used by most organisms.
- Bacteria nodules associated with certain plants change water vapor from the air into a form that can be used by most organisms.
By considering the role of bacteria nodules in the nitrogen cycle, we can determine that the answer to question 4 is: c) nitrogen.
5. Which organisms in a food chain have the least available energy?
To understand which organisms in a food chain have the least available energy, let's analyze the given options:
- Organisms in the first link of a food chain are usually primary producers (e.g., plants) that convert solar energy into chemical energy through photosynthesis.
- Organisms in the middle links of a food chain are usually consumers (herbivores or omnivores) that obtain energy by consuming other organisms.
- Organisms in the last link of a food chain are usually top-level predators (carnivores) that obtain energy by consuming other consumers.
Based on the energy loss between trophic levels in the food chain, the answer to question 5 is: d) those in the last link.
To summarize, the correct answers are:
1. a) food web
2. d) Omnivores; carnivores
3. c) follows various paths
4. c) nitrogen
5. d) those in the last link.
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You'll find a lot (or all?) of your answers here.
http://quizlet.com/11535275/ecology-feeding-relationships-flash-cards/
Your answer for 2 is wrong; 3 is right.
a
b
d
c
d
c