Multicelular

The video explains that different cells in organisms have specific functions, such as blood cells and neurons in animals, and leaf cells and root hairs in plants. It also highlights that not all multicellular organisms have the same number of cells. For instance, the human body contains trillions of cells, whereas some microorganisms, like tiny nematodes, have fewer than 1000 cells.

Which of the following is a type of cell found in animals?

• Root hairs

• Blood cells

• Chloroplasts

• Leaf cells

What is the primary function of neurons in animals?

• Transporting oxygen

• Absorbing nutrients

• Conducting nerve impulses

• Photosynthesis

Which type of cell is responsible for photosynthesis in plants?

• Root hairs

• Leaf cells

• Neurons

• Blood cells

Approximately how many cells does the human body contain?

• Thousands

• Hundreds

• Millions

• Trillions

What is the approximate number of cells in some microorganisms like nematodes?

• Less than 1000

• More than a million

• Billions

• Trillions