Answer:
Let's find out if exhaled air contains carbon dioxide.
Take a glass and fill it up with some limewater. ... The limewater turns milky. This goes to show that the carbon dioxide present in the exhaled air turns the limewater chalky. The limewater turns from clear and colourless to chalky.
Explanation:
Answer:
They have homologous structures because they have a common ancestor.
They are also describe as a plant with naked seeds because during pollination ovule is not enclosed by the carpel except some kind of scales during development .....In contrast the angiosperm have evolved flower hence they are also called flowering plants