Flashcard 1.4.2: Ocean Ecology #2 (2024)

Front

What is the estimated population size of trees in a given area if 2 trees are found in 1 square meter, 4 trees in another, 3 in another, and 1 in the last, with a total area of 40 square meters?

Back

The estimated population size of trees is 100.

Front

If Level 4 of a food chain has 80 calories, how many calories does Level 3 have?

Back

Level 3 has 800 calories.

Front

What is the equation for photosynthesis?

Back

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Front

How do you calculate the total number of brine shrimp in an aquarium if you collect 5 from a 10 ml sample of a 4000 ml aquarium?

Back

If 5 brine shrimp are collected from a 10 ml sample, the total number of brine shrimp (N) in the aquarium is 2000.

Front

What level consumer is a Sea Lion in an ecological food chain?

Back

A Sea Lion is a 4th level consumer.

Front

What is the formula to estimate population size using sampling?

Back

N = (number of individuals in sample / area of sample) * total area.

Front

What is the significance of the 10% rule in ecology?

Back

The 10% rule states that only about 10% of the energy from one trophic level is transferred to the next level.

Front

Define primary producers in an ecosystem.

Back

Primary producers are organisms that produce their own food through photosynthesis or chemosynthesis, forming the base of the food chain.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the ecosystem.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass, while a food web is a complex network of interconnected food chains.