Answer: when you put the pollen under a microscope you can see that the pollen isn’t just yellow and looks like dots but that that each one has a different shape and size
Explanation:
Answer:
The egg contains both food and mitochondria in addition to its vital DNA, thats why it is much larger. The sperm cell has to be much smaller than the egg cell, because it is the one that swims. If a sperm cell were as big as an egg, it would not be able to move very fast nor very far.
<span>Too little is known about pre-Archean time, from the origin of Earth to 3.8 billion years ago, to divide that period into units.</span>
Adenine pairs with thymine (or uracil), and guanine pairs with cytosine.
Answer:
Chemical energy stored in glucose
Explanation:
