TED-Ed: Making sense of how life fits together - Bobbi Seleski

The video explains biological organization as a pyramid, starting from the smallest unit, the cell, to the largest, the biosphere. It covers the hierarchy of life, including cells, tissues, organs, organ systems, organisms, populations, communities, ecosystems, and the biosphere. Each level is described in terms of its function and role in maintaining life, emphasizing the interconnectedness of all levels to achieve homeostasis and sustain life on Earth.

What is the most basic component of life that cannot be seen by the human eye?

• Tissue

• Organ

• Cell

• Organism

Which of the following is NOT a type of tissue found in the human body?

• Muscle

• Connective

• Nervous

• Digestive

What is the primary function of an organ system?

• To create new cells

• To perform a single job

• To form tissues

• To maintain homeostasis

What term describes a group of the same species living together in the same environment?

• Community

• Population

• Ecosystem

• Biosphere

What do we call the sum of all ecosystems on Earth?

• Organism

• Population

• Community

• Biosphere