I don’t know the first two but the last one the thousands of subunits are called nucleotides
The Cambrian Period marks an important point in the history of life on Earth; it is the time when most of the major groups of animals first appear in the fossil record. This event is sometimes called the "Cambrian Explosion," because of the relatively short time over which this diversity of forms appears
Answer:
The Stomata
Explanation:
It transpires water & creates a vacuum to draw more water up the stem
Answer:
Spongy or cancellous tissue – the porous, honeycombed material found inside most bones, which allows the bone to be strong yet lightweight.
