If the manta ray gets 50 kcal of energy by eating the

Biology

2 answers:

ruslelena [56]3 years ago

5 0

Answer:

Clam get 5000 Kcal by eating the plankton

Explanation:

In any food chain the amount of energy transferred to the successive trophic level is ten percent of the energy available at the previous trophic level.

Here, manta ray gets 50 kcal of energy by eating the starfish

The amount of energy contained in star fish is equal to

$0.1 * X = 50 \\X = 500$ Kcal

Now Starfish gets its energy from clam.

Therefore total energy in clam is equal to

$0.1 * X = 500\\X = 5000$

Therefore, clam get 5000 Kcal by eating the plankton

IrinaK [193]3 years ago

3 0

Answer:

5,000

Explanation:

If the manta ray has 50 kcal then the starfish has 500, and clam has 5000.

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Black coffee has a pH around 5; hand soap has a pH of 10. How many times more acidic is coffee relative

Anon25 [30]

Answer:

$\boxed {\boxed {\sf 10^5 \ or \ 100,000 \ times \ more \ acidic}}$

Explanation:

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This scale is unique because it is logarithmic. So, every time the pH changes by 1 on the scale, the actual concentration of the solution increases or decreases by a tenfold.

So, a solution with a pH of 7 is ten times more acidic than a solution with a pH of 8. This can be translated to:

$10^ {difference \ in \ pH}$

The black coffee has a pH of 5 and the hand soap has a pH of 10. We want to find how many times more acidic coffee is, so we subtract 5 from 10 and get 5. The difference in pH is 5.

$10^5=100,000$