What is a defining characteristic of life by which organisms give rise to offspring?

What is the next step in muscle contraction after the actin changes shape? (apex)

Below are the three main organs that make up the plant body. what is the main function of the structure that is identified as b in the picture above? it anchors the plant.it produces food.it absorbs nutrients.it supports the plan

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell