<span>The best opening sentence for such a business/informal letter is B. Your order of February 10 arrived in our office today. This is the only sentence that doesn't sound too formal and use a bunch of fancy words in order to make it seem more formal, which is the reason why it is the least formal, in this case and thus the correct answer.</span>
The answer is B, understand the plot.
Answer:
By keeping a thin skeleton, the sand dollar can camouflage itself in the sand.
Explanation:
Sand dollar are very small and peculiar sea urchins. They have very few predators like some fish and starfish, but they manage to get rid of predation with their own bodies, which is very useful for such a small creature. This is because sand dollars have small spines on their bodies, which in addition to allowing them to move forward on the ocean floor with great speed, allows them to hide in the sand, preventing their predators from finding them.
Answer:
I can't see the text
Explanation:
BUT you can always
right click
go to inspect elements
and hover over the text answers
if one is highlighted green, it's correct
