DNA Back 2. Reproduction is the process by which parents transmit DNA instructions for duplicating their traits to offspring. Development is the transformation, guided by DNA, of a fertilized egg into a multi-celled adult with cells, tissues and organs specialized for certain tasks. Development occurs in stages. Energy is the capacity to do work.
Receptors are molecules and structures that detect stimuli.
Organisms connect with one another by a one-way flow of energy through them and a cycling of materials among them. Their interconnectedness affects the structure, size and composition of populations, communities, ecosystems and the biosphere. Producers trap, convert and use or store energy from the sun. Protista - An eukaryotic kingdom. Mutations are the original source of variations in heritable traits.