In an animal, nerve cells have long, branched extensions. Muscle cells contain protein fibres and many mitochondria.

Which statement explains how differentiation benefits movement in the animal?

Muscle cells release energy for the nerve cells, so the nerve cells need no mitochondria of their own.

Each cell type can later change back into the other, so damaged nerve or muscle cells are replaced.

Nerve cells carry impulses and muscle cells contract, so each part of movement is done by a cell adapted to it.

Nerve cells contract using protein fibres and muscle cells carry impulses, so the work is shared between them.

In an animal, nerve cells have long, branched extensions. Muscle cells contain protein fibres and many mitochondria.

Which statement explains how differentiation benefits movement in the animal?

Muscle cells release energy for the nerve cells, so the nerve cells need no mitochondria of their own.

Each cell type can later change back into the other, so damaged nerve or muscle cells are replaced.

Nerve cells carry impulses and muscle cells contract, so each part of movement is done by a cell adapted to it.

Nerve cells contract using protein fibres and muscle cells carry impulses, so the work is shared between them.

2.1 Supplying the cell

2.1 Supplying the cell Questions