Secondary succession occurs after the initial succession has been disrupted and some plants and animals still exist. The disruption occurs afer an event like a forrest fire or hurricane destroys the forest.
Biological macromolecules are synthesized by dehydration
synthesis reactions and are broken down by hydrolysis
reactions.
<h3>What are Biological macromolecules?</h3>
These are formed from smaller compounds and are necessary
for proper life functions of cells. Examples of these
macromolecules include:
Dehydration synthesis involves the loss of water molecules in
the process while hydrolysis reaction involves the addition of
water molecules.
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Variation: When one of that species develops another trait or skill that the others do not have.
Adaptation: When a species changes in order to survive a certain place or survive a predator
Answer:
The correct answer would be a. Fragments of DNA that have desired genes are isolated to form recombination DNA for use in a host. Genetic engineering refers to the direct manipulation or modification of the desired gene in a cell in order to produce novel or improved organism.
Explanation:
The answer is 4Fe+3O2→2Fe2O3
