What age are girls usually physically mature

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.

Which of the following explains why a tree is often used as a model to represent the principle of common descent