Arrange the trophic in ascending order starting from the base of the ecological pyramid of energy and increasing to the top.

• secondary consumers
• herbivores
• producers
• apex predators

What is gene expression control that occurs after the generation of rna

How do the sperm cells get from the stigma to the ovules? a. they slide down the petals to the bottom of the flower. b. they travel through pollen tubes. c. they travel along filaments. d. insects carry the sperm cells from the stigma to the ovules.

What does the number 18.9984 represent in the image?