It is fashionable in some quarters to wave aside the small and obscure, the bugs and weeds, forgetting that an obscure moth from latin america saved australia’s pastureland from overgrowth by cactus, that the rosy periwinkle provided the cure for hodgkin’s disease and childhood lymphocytic leukemia, that the bark of the pacific yew offers hope for victims of ovarian and breast cancer, that a chemical from the saliva of leeches dissolves blood clots during surgery, and so on down a roster already grown long and illustrious despite the limited research addressed to it.

which of the following claims is best supported by the evidence in this excerpt?
all species are worth protecting because even the small organisms contribute important functions in the environment.
every effort should be made to protect each bug and weed species regardless of its potential to cause destruction.
all of the species that are now extinct or are becoming extinct could have cured a disease.
only the species that can be used for medical purposes are worth protecting from extinction

All species are worth protecting because even the small organisms contribute important functions in the environment.

The passage is a list of different small organisms and it's contribution to the environment. Some help to keep other species in check while others are used for medicinal purposes. Based on this passage it is not clear if the species listed are extinct or becoming extinct. Nor is it clear if these species have the potential to cause distruction. This eliminates B and C. In the passage it includes many different species and mentions not only what they've been able to do but also what one might be able to do in the future. Therefore, option D is a poor choice because it says "only the species" not "all species" like option A.

        its hard for some people to get along and that’s the case for douglass and canot. most of the time when people do not agree with each other its because they have different presperctives, and that is the case here.

captain canot was never a slave so but he was a slaver and a slave ship captain and just like the slave master's he tought it was it was totally normal, he used captain conot is a cruel man who enjoys whipping slaves but never   got whipped he saw it has a destiny for the slave to be a slave and the slaver to be a slaver   but douglass has suffered whoppings cut   even for no reason sometimes. douglass believed that slavery was not natural to black people, they need to study and learn how to read and write. he knew they have rights.

it was really not the captain’s fault he was just brainwashed by the system and when your brainwashed by the system its hard not to be brainwashed. but the reason douglass wants this is because he has suffered he knows how it feels and will do anything to stop that.

what is the context here? we need to know what story you're talking about : )