Answer:
A. Mostly unstaurated fatty acids
Explanation:
Fats can be both mostly saturated and unsaturated, though oils typically fall under the description of mostly unsaturated.
B. Roundworms<span>.
The Protostome organisms are subclustered into three main groups,
moreover nematoda or roundworms belongs to the Ecdysozoa group.</span>
<span>Roundworms are organisms that are diverse and almost in clustered to many other ecosystems and environment.
These
Protostome includes mollusks, annelids, and arthropods
</span>
I think that is -7 cause 33+7=40 so 33-40 would be -7
I would say that B) single events or several causes working together to produce extinction in a short period is referred to as mass extinction, but I am not 100% sure.
