If 4,000 units of energy are available in the producer level ,about how much would be available to the tertiary consumers?

allowed for the prediction of the properties of missing elements.

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.

i need