The system that regulates water and eliminates nitrogenous wastes from the body is:

Which of the following statements is true about apocrine glands?

Describe the 3 examples of negative feedback discussed in the videos:

28: This is the __________ cavity:

45:

55: type of tissue

49:

46:

Describe the layers of the epidermis, from deepest to most superficial. Mention what types of cells are present in each of them, and their function.

47: