Which of the following is used as evidence in supporting the idea that life changes over time? a. the big bang theory b. the existence of vestigial structures c. the similarities in the body system such as the endocrine and nervous systems d. the time period in which an embryo develops

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

Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.

Which process takes place last in the human being which process takes place last in the development of a human being