Read the paragraphs from “Stick to Real Microscopes.”

The most powerful smartphone microscopes can magnify objects up to 350 times their actual size. That sounds impressive. But it pales in comparison to what a real microscope can do. A mid-level real microscope can magnify objects up to 2000 times their actual size. Let those numbers sink it. They say that a real microscope is five to six times more powerful than a smartphone microscope.

And what does that mean in the lab? Well, imagine looking at a sample of blood. With a real microscope, one would see individual red blood cells, their specific shapes, and their distinct movements. A smartphone microscope would give the observer a very different picture. Suddenly, the sample would look like just a hazy collection of tiny red blobs (Manea). Remember, scientists seek to gather precise and accurate information. But the information gathered with the smartphone microscope would be less precise and less accurate. It would be less useful. Again, when the two are compared, the smartphone microscope comes up short.

What is the author’s purpose in the paragraphs?

A) to demonstrate how powerful smartphone microscopes are
B) to provide evidence that smartphone microscopes are ineffective tools
C) to describe various uses for smartphone microscopes
D) to compare scientists’ opinions on real and smartphone microscopes

answer: look it out

explanation: which sentence in this excerpt from leo tolstoy’s the death of ivan ilyich shows the human tendency to contemplate one’s past life? wrong / "but if that is so," he said to himself, "and i am leaving this life with the consciousness that i have lost all that was given me and it is impossible to rectify it—what then? "correct / he lay on his back and began to pass his life in review in quite a newway.wrong / he was given a large dose of opium and became unconscious, but at noon his sufferings began again.wrong / when the priest came and heard his confession, ivan ilyich was softened and seemed to feel a relief from his doubts and consequently from his sufferings, and for a moment there came a ray of does the character of gerasim the protagonist to attain spiritual freedom in tolstoy’s the death of ivan ilyich?

a. wronggerasim ivan ilyich by caring for him in his last days, regardless of the challenge.b. gerasim treats ivan like his father and performs the duties of a son.c. correctivan ilyich realizes that he has lived an artificial life by comparing his life with gerasim’s.d. wrongivan ilyich feels inferior to gerasim because gerasim leads a healthy literature of nineteenth-century realism depicted everyday life in a realistic way. which statements show that leo tolstoy’s the death of ivan ilyichis a realist text? correct / the description of human struggles in the form of ivan ilyich’s sufferingwrong / the faithfulness of relationships that ivan ilyich experiences toward the end of his lifewrong / the romantic tension that occurs between ivan ilyich and his wifethe difference between superficial and authentic livingthe plot ending with a surprising turn of does the following line from leo tolstoy’s the death of ivan ilyich contribute to the plot at the end of the novella? a. it shows that ivan finally loses the battle of life, and it represents a tragic ending of the story.b. it shows that ivan continues to fight for his life and gives the plot an open ending.c. correctit shows that ivan has finally accepted the end of his life, and it brings finality to the plot.d. it shows that ivan evades death at the end because his illness has been two sentences in this excerpt from leo tolstoy's the death of ivan ilyich show ivan ilyich's struggle with his life and his inability to let go of his past? correct / for three whole days, during which time did not exist for him, he struggled in that black sack into which he was being thrust by an invisible, resistless force.

the reason some people sacrifice their own life for another person's life could be that they are in love with them and would do anything to keep them safe a protected even if that means risking their life in the process