Question

Використовуючи правило екологічної піраміди, визначте якою стала маса молодого вовка вагою 40кг за тиждень полювання, якщо протягом цьоготижня він з'їв 150 полівок(маса одної полівки приблизно 10г). Масова часткаводи – 70%.​

Answer 1

Ответ:

визначаємо 70 процентів від 10 грам. і потім множимо на 150. та додаємо до 40 кг , але не забуваємо грами перевести в кг

Answer 2

Calculation of the Young Wolf's Mass

To determine the young wolf's mass after a week of hunting using the ecological pyramid rule, we need to consider the energy transfer between trophic levels. The ecological pyramid is a representation of the flow of energy through different levels of a food chain or food web.

The ecological pyramid consists of three levels: producers, primary consumers, and secondary consumers. In this case, the young wolf is a secondary consumer, as it consumes the primary consumers (polivkas).

To calculate the young wolf's mass, we need to consider the energy transfer efficiency between trophic levels. On average, only about 10% of the energy is transferred from one trophic level to the next. This means that the young wolf will obtain only 10% of the energy stored in the polivkas it consumes.

Let's calculate the mass of the young wolf after a week of hunting:

1. Calculate the total energy obtained from consuming the polivkas: - The young wolf consumed 150 polivkas. - The mass of one polivka is approximately 10g. - Therefore, the total mass of the polivkas consumed is 150 * 10g = 1500g.

2. Calculate the energy obtained from the polivkas: - Since the young wolf is a secondary consumer, it will obtain only 10% of the energy stored in the polivkas. - Therefore, the energy obtained from the polivkas is 10% of 1500g = 150g.

3. Convert the energy obtained to mass: - The mass of the young wolf is 40kg. - The mass fraction of water is 70%. - Therefore, the mass of the young wolf without water is 40kg * (1 - 0.70) = 12kg.

4. Calculate the mass of the young wolf after a week of hunting: - The energy obtained from the polivkas is 150g. - The energy content of the young wolf is proportional to its mass. - Therefore, the mass of the young wolf after a week of hunting is (150g / 12kg) * 40kg = 500g.

Therefore, the mass of the young wolf after a week of hunting is approximately 500 grams.