An energy-rich organic compound needed by organisms is
(1)water
(2)salt
(3)oxygen
(4)glucose

Answer;

-Glucose

An energy-rich organic compound needed by organisms is glucose

Explanation;

-Glucose is a simple sugar or carbohydrate that is used by the cell during cellular respiration to generate energy in the form ATP, which is the usable form of energy by the cells.

-Carbohydrates or sugars are energy-rich organic compounds made of carbon, hydrogen and oxygen. Plant cells store excess energy in molecules of starch, while animals store excess energy in molecules of glycogen.

answer; i believe the correct answer is ( proteins );

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.