Question

If the little bird gets 50 units of energy from the caterpillar, how much energy did the caterpillar get from the leaf? Assume a 10% energy transfer at each level.

(1 point)
Responses

50 units of energy
50 units of energy

500 units of energy
500 units of energy
Question 2
If the little bird got 50 units of energy, how much is available for the big bird?(1 point)
Responses

50
50

5
5

Answer 1

To solve the first question, we need to consider the energy transfer efficiency. If the little bird receives 50 units of energy from the caterpillar, and there's a 10% energy transfer at each level, we can calculate the energy from the leaf to the caterpillar.

If the caterpillar transfers 10% of its energy to the bird, we can set up the equation like this:

Let \( x \) be the energy the caterpillar got from the leaf.
The caterpillar passes 10% of \( x \) to the little bird:

\[
0.10x = 50
\]

To find \( x \), we rearrange the equation:

\[
x = \frac{50}{0.10} = 500 \text{ units of energy}
\]

So the answer to the first question is **500 units of energy**.

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For the second question, if the little bird got 50 units of energy from the caterpillar, and again considering the 10% transfer ratio, the energy available for the big bird would be:

The little bird transfers 10% of the 50 units to the big bird:

\[
0.10 \times 50 = 5 \text{ units of energy}
\]

So the answer to the second question is **5**.