The answer is; B
Rocks have naturally occurring and spontaneously radioactive atoms in them, such as carbon-14. These element isotopes decay into other types of atoms over millions of years. Therefore, by measuring the amount of these radiometric substances, and knowing the half-life of the isotopes, it is possible to postulate the age of a rock to within certain ranges of error.
Cell wall and chloroplast are two examples of structures which are found in plant cells but not in animal cells.
Im pretty sure that its nondisjunction
Both the terms "living" and "biotic" describe an organism that holds life. However, an organisms stops "living" after it dies, but never stops being "biotic". This is because "biotic" means anything that has ever had life, whereas "living" only describes things currently alive.
The correct answer is:
<h3>a.
Entropy increases going from one trophic level to another.</h3><h3>Explanation:</h3>
Entropy progress going from one trophic level to another. Entropy is a division for the disorderliness of a system. As the trophic level move to the other, energy is lost so more chaos occurs which inflates the entropy.
