monday/tuesday
match the term with the correct definition.
____ symbiosis a. an animal kills another animal
____ predation b. a diagram showing animals consuming others
____ food web c. the study of organisms and their environment
____ competition d. two animals fighting for the same resources
____ ecology e. two animals co-existing in the same environment

wednesday/thursday
energy pyramid image (producers, primary consumers, secondary consumers, tertiary consumers, energy transferred, energy \lost\)
1. which level holds the most energy?
2. which level(s) contains carnivores?
3. how much energy moves to the next trophic level?
4. if the snakes have 500j of energy, how much do the producers have?

Question

monday/tuesday
match the term with the correct definition.
____ symbiosis    a. an animal kills another animal
____ predation    b. a diagram showing animals consuming others
____ food web     c. the study of organisms and their environment
____ competition  d. two animals fighting for the same resources
____ ecology      e. two animals co-existing in the same environment

wednesday/thursday
energy pyramid image (producers, primary consumers, secondary consumers, tertiary consumers, energy transferred, energy \lost\)
1. which level holds the most energy?
2. which level(s) contains carnivores?
3. how much energy moves to the next trophic level?
4. if the snakes have 500j of energy, how much do the producers have?

Accepted Answer

### Monday/Tuesday (Matching)
# Brief Explanations:
- **Symbiosis**: Symbiosis refers to a close and long - term interaction between two different biological species. The option that describes two animals co - existing in the same environment (E) matches this term.
- **Predation**: Predation is a biological interaction where one organism (the predator) kills and eats another organism (the prey). So the option where an animal kills another animal (A) is the correct match.
- **Food Web**: A food web is a diagram that shows the complex feeding relationships between different organisms in an ecosystem, depicting which animals consume others. So option B is the right match.
- **Competition**: Competition in an ecological context occurs when two or more organisms fight for the same limited resources such as food, water, or space. Option D, which says two animals fighting for the same resources, is the correct match.
- **Ecology**: Ecology is the scientific study of the interactions between organisms and their physical environment. Option C, which states the study of organisms and their environment, is the correct match.
# Answer:
- Symbiosis: E
- Predation: A
- Food Web: B
- Competition: D
- Ecology: C

### Wednesday/Thursday (Energy Pyramid Questions)
#### 1. Which level holds the most energy?
# Brief Explanations:
In an energy pyramid, energy is transferred from one trophic level to the next, and at each transfer, a large amount of energy is lost (usually as heat). Producers (like plants) are at the base of the energy pyramid. They capture energy from the sun through photosynthesis, and this is the initial source of energy for the entire ecosystem. As we move up the trophic levels (to primary consumers, secondary consumers, tertiary consumers), the amount of available energy decreases. So the producers' level holds the most energy.
# Answer:
Producers

#### 2. Which level(s) contains carnivores?
# Brief Explanations:
Carnivores are organisms that eat other animals. Primary consumers are usually herbivores (they eat plants). Secondary consumers eat primary consumers (so they can be carnivores or omnivores that eat animals), and tertiary consumers eat secondary consumers (they are also carnivores or omnivores that eat animals). So the secondary consumers and tertiary consumers levels contain carnivores.
# Answer:
Secondary consumers, Tertiary consumers

#### 3. How much energy moves to the next trophic level?
# Brief Explanations:
According to the 10% rule in ecology, only about 10% of the energy available at one trophic level is transferred to the next trophic level. The remaining energy is lost as heat, used for metabolic processes, or in other ways.
# Answer:
About 10% of the energy

#### 4. If the snakes have 500J of energy, how much do the Producers have?
# Explanation:
## Step1: Determine the trophic level relationship
Snakes are secondary consumers. To find the energy of producers, we need to work backwards through the trophic levels. We know that only 10% of the energy is transferred from one level to the next. So, if we let $ E_{producers} $ be the energy of producers, $ E_{primary\ consumers} $ be the energy of primary consumers, and $ E_{secondary\ consumers} $ (snakes) be 500J. The energy transfer from primary consumers to secondary consumers is 10%, so $ E_{secondary\ consumers}=0.1\times E_{primary\ consumers} $. And the energy transfer from producers to primary consumers is also 10%, so $ E_{primary\ consumers}=0.1\times E_{producers} $.

## Step2: Work backwards to find producers' energy
First, from $ E_{secondary\ consumers}=0.1\times E_{primary\ consumers} $, we can find $ E_{primary\ consumers}=\frac{E_{secondary\ consumers}}{0.1} $. Substituting $ E_{secondary\ consumers} = 500J $, we get $ E_{primary\ consumers}=\frac{500}{0.1}=5000J $.

Then, from $ E_{primary\ consumers}=0.1\times E_{producers} $, we can find $ E_{producers}=\frac{E_{primary\ consumers}}{0.1} $. Substituting $ E_{primary\ consumers}=5000J $, we get $ E_{producers}=\frac{5000}{0.1} = 50000J $.
# Answer:
50000J

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QUESTION IMAGE

Question

Explanation:

Monday/Tuesday (Matching)

Answer:

Wednesday/Thursday (Energy Pyramid Questions)

1. Which level holds the most energy?