English, 07.02.2022 14:00 deg12

Cosmo is a scientist. He is conducting an experiment to determine if microscopic yeast particles are living organisms. He divides a Petri dish into four sections and spreads a sample of yeast into each section. His Petri dish is pictured below.

Cosmo knows that yeast reacts chemically with sugar. So he adds different amounts of sugar to each section of his Petri dish. He is careful to keep each section separated from the others. In one of the sections, Cosmo does not add any sugar at all.

He waits one week and then carefully observes each sample of yeast under a microscope. He makes several observations. These observations are listed below.
Each sample of yeast remained separate from the other three samples.

The three samples that were given sugar showed evidence of a chemical reaction.

The sample that was given the greatest amount of sugar reacted with the sugar the most.

The yeast that received no sugar responded by forming and releasing spores.
Which observation provides the best evidence that Cosmo's yeast particles are living organisms?
A.
Observation #4
B.
Observation #1
C.
Observation #3
D.
Observation #2

Answers: 3

Show answers

Another question on English

English, 21.06.2019 23:30

Which sentence has a correctly placed participial phrase? a. we read about a pizza on the menu covered in pepperoni. b. covered in pepperoni, we read about a pizza on the menu. c. we, covered in pepperoni, read about a pizza on the menu. d. we read about a pizza covered in pepperoni on the menu.

Answers: 1

Answer

English, 21.06.2019 23:50

Read the excerpt from flannery o'connor's "the life you save may be your own although the old woman lived in this desolate spot with only her daughter and she had never seen mr. shiftlet before, she could tell, even from a distance, that he was a tramp and no one to be afraid of. his left coat sleeve was folded up to show there was only half an arm in it and his gaunt figure listed slightly. which phrase connects these characters to the southern gothic genre? half an arm she had never seen his left coat sleeve folded up

Answers: 2

Answer

English, 22.06.2019 03:00

Is directly communicated and requires little interpretation

Answers: 1

Answer

English, 22.06.2019 06:10

Sister carrie, chapter ii theodore dreiser how does the author prepare readers for the last full paragraph of this passage? a) the author introduces carrie by showing readers the similarities between carrie and her sister, who is married to a hardworking man. b) the author introduces carrie as the jealous sibling of minnie, who works hard to make carrie feel welcome without upsetting her own marital balance. c) the author introduces carrie as an observant and young woman who notices the routine of her sister and brother-in-law, with whom she is staying. d) the author introduces carrie as a rather selfish and naive young woman who accepts the hospitality of her sister and brother-in-law until she can find a job in the city.

Answers: 3

Answer

You know the right answer?

Cosmo is a scientist. He is conducting an experiment to determine if microscopic yeast particles are...

Questions