How did early land animals differ from those common today?

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Several billion years ago which gas was the least prevailant in the atmosphere

What is one reason why transpiration is important in plants? question 19 options: it produces food from the sugar in the plant cells. it enables the flow of water out of the plant. it produces carbon dioxide in the leaves of the plant.