Cells are the smallest unit of life. Cells in multicellular plants and animals are arranged into tissues, organs and organ systems. Cells. Tissues. Organs. Organ systems. And the organism itself.

Animal proteins are considered higher quality than plant proteins because they have the essential amino acids needed to build ...

such as that between plants and animals, allow us to highlight the most fundamental principles of stem cell biology. Stem cells function as the source of new cells to build tissues and organs and ...

In contrast, plants are autotrophic, producing their food through photosynthesis by converting sunlight, carbon dioxide, and water into energy. Animals rely on sensory organs and nervous systems ...

Cells are the smallest unit of life. Cells in multicellular plants and animals are arranged into tissues, organs and organ systems. Cells. Tissues. Organs. Organ systems. And the organism itself.