Cells are the fundamental units of structure and function found in all organisms. embryonic cells during the first six to eight weeks of gestation are especially vulnerable to birth defect causing agents, such as alcohol and drugs,

Amarine ecologist has constructed the conceptual model shown in the diagram. what predictions can be made from using this model? where the tertiary consumers get their energy how often primary producers are able to reproduce when bacteria and fungi initiate the process of decomposition whether other secondary consumers are present