Question

Известно, что лисица фенёк, живущая в Сахаре, в возрасте 1 месяца имеет массу 150 грамм и питается саранчой (2,5 грамм). Подсчитайте, какое количество особей саранчи и растений, съеденных саранчой (в кг), понадобилось лисице для достижения массы 1,5 кг в цепи питания: подушковидные кустарники – африканская саранча – фенёк? Как делать, распишите все пожалуйста

Answer 1

По правилу экологической пирамиды
1.5*10=15 кг саранчи
2,5 г = 0,0025 кг
15/0,0025 кг = 6000 особей саранчи
15*10 = 150 кг растений для саранчи

Answer 2

Calculation of the Amount of Grasshoppers and Plants Consumed by a Fennec Fox

To calculate the amount of grasshoppers and plants consumed by a fennec fox in the food chain of shrubby plants - African grasshopper - fennec fox, we need to consider the initial weight of the fennec fox and the weight it needs to reach.

According to the information provided, a fennec fox living in the Sahara Desert weighs 150 grams at the age of 1 month and consumes 2.5 grams of grasshoppers. We need to calculate the amount of grasshoppers and plants consumed by the fennec fox to reach a weight of 1.5 kilograms.

To calculate the amount of grasshoppers consumed, we can use the following formula:

Amount of grasshoppers consumed = (Final weight - Initial weight) / Weight gain per grasshopper

Let's calculate the amount of grasshoppers consumed step by step:

1. Convert the weight of the fennec fox from grams to kilograms: - Initial weight: 150 grams = 0.15 kilograms

2. Calculate the weight gain required for the fennec fox to reach 1.5 kilograms: - Final weight: 1.5 kilograms - Weight gain: Final weight - Initial weight = 1.5 kg - 0.15 kg = 1.35 kilograms

3. Calculate the number of grasshoppers consumed: - Weight gain per grasshopper: 2.5 grams - Amount of grasshoppers consumed = Weight gain / Weight gain per grasshopper = 1.35 kg / 0.0025 kg = 540 grasshoppers

Now, let's calculate the amount of plants consumed by the grasshoppers in the food chain:

According to the information provided, the fennec fox consumes African grasshoppers. However, the amount of plants consumed by the grasshoppers is not specified. Therefore, we cannot accurately calculate the amount of plants consumed by the grasshoppers.

In conclusion, based on the given information, a fennec fox would need to consume approximately 540 grasshoppers to reach a weight of 1.5 kilograms in the food chain of shrubby plants - African grasshopper - fennec fox. However, the amount of plants consumed by the grasshoppers cannot be determined without further information.

Please note that the calculations provided are based on the information given and may not reflect the exact values in nature.