From this App you can learn :

Understand the basic principles of animals like metabolism, bioenergetics and homeostasis.
Analyze how an organism is characterized by having different levels of organization built around the cell.
List and describe the four major types of tissues found in animals.
Examine how specialization of cells in tissues enhances tissue function.
Define and distinguish cells, tissues, organs and organ systems.
List and analyze the major life processes carried out by each organ system in vertebrate animals.
Identify why a disease that damages connective tissue is likely to threaten most of the body’s organs.
Recognize how muscle and nervous tissue are interdependent.
Define homeostasis, and explain why it is an essential feature of all living organisms.
Define, thermoregulation and analyze how animals maintain an internal temperature within a tolerable range.

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This topic covers under Biology subject as a part of the Animal Form and Function topic
and this topic contains following sub topics
Basic Principles
Tissues and Organs
Homeostasis and Thermoregulation
Energy Sources and Allocation
Metabolism