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maxonik [38]
3 years ago
7

What is an inex fossil

Biology
1 answer:
rewona [7]3 years ago
6 0

Answer:

Explanation:

An index fossil is used for learning the age of geological periods.

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Cells contain parts known as organelles. These parts are specialized. What does this mean?
navik [9.2K]
"Specialized" organelles or parts means that these parts have been modified to carry out a specific function that is unique to them. Organelles are literally "little organs" and each of them in the cell has a specific and distinct function. For example the nucleus is an organelle. It is arguably the most important organelle in the cell. Its specific overall function is that it acts as the cell control center, directing the activities of all the other organelles .i.e. what they need do and when to do it. The nucleus also contains all of the cell's genetic material (DNA).
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Which level of the energy pyramid has the least amount of food
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trophic

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Which statement is characteristic of streams and rivers
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Streams or rivers form when water that does not find an underground aquifer, drains off the land by either seeping through the soil or spilling over the surface into the river or stream bed. 

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3 years ago
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What is the ph of a substance with a hydroxide{OH] of 10-6
Reptile [31]
POH = - log[OH^-]
pOH = - log[10^-6]
pOH = - (-6)
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knowing the ionization equation between pH and pOH in a solution at T = 25 degrees Celsius.

pH + pOH = 14
pH = 14 - pOH
pH = 14 - (6)
pH = 8.

I believe the pH of a substance with 10^-6 M of OH, would be 8.
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Which cellular structures are needed for cellular respiration? Why?
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