Which of the following best defines the terms decomposer and detritivore

The pelican's beak is adapted for in .

How secretion and excretion both are different? explain in simple language.

What is genetic variation? -(a) each individual in a population has slightly different genes. -(b) some individuals in a population have more genes than others. -(c) each population of a species has slightly different genes. -(d)some populations of a species have more genes than others.