Alfred Wegener was the scientist who proposed the Continental Drift Theory in the early twentieth century. Simply put, his hypothesis proposed that the continents had once been joined, and over time had drifted apart.<span>
</span>
I think the veins absorb the photons because they're located at the top part of a leaf while the stomata that serves as the leaf's lungs are found at the under side.
Answer:
Probably because they just need air to being able to live and have air going in and out like carbon dioxide and getting rid of used air.
B. Is the correct answer I believe
In a crossed-extensor reflex, if the right arm was grabbed it would flex and the left arm would _EXTEND_. :)