D
Some populations are related to others
Explanation:
In the megasporan- gium of each ovule, the megasporocyte divides by meiosis, producing four megaspores. One survives and forms a female gametophyte. Fertilization: In nucleus of developing endosperm-- Double fertilization occurs. One sperm fertilizes the egg, forming a zygote.
Answer:
variations says it all...
Catabolic reactions use energy to synthesize large molecules from small molecules.
<h3>What is a catabolic reaction?</h3>
The Catabolic reaction is the action of the set of metabolic pathways that breaks down molecules into smaller units that are either oxidized to release energy or used in other anabolic reactions. Catabolic reactions are a type of metabolic reaction that takes place within a cell. An example of a catabolic reaction is the process of food digestion, where different enzymes break down food particles, so they can be absorbed by the small intestine.
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