<u>Answer</u>:
1. The purpose of the uninoculated control tubes used in the oxidation fermentation test is to serve as basis of the medium for the color comparison and that it is sterile.
2. It is necessary to use two controls in order to illustrate the no color change (green color) under both aerobic and anaerobic conditions.
3. The purpose of the experiment is to determine if the organisms utilize the carbohydrate and thus is fermentative. This will result in a color change from green to yellow.
Thus, the medium in one tube is sealed with a layer of paraffin to prevent diffusion of oxygen. This tube will show that the medium is unaffected by the lack of oxygen.
The second tube will allow the diffusion of oxygen. This tube will show that the medium does not change color naturally in the presence of oxygen. Thus, the color changes will be caused only by the fermentation process of the organisms.
Hello. You forgot to mention that this question is about the poem "Icarus's Flight". it is necessary that you always provide all the necessary information for your question to be answered as you deserve.
Answer:
The poem states that Icarus did the right thing because he used his skills to try to achieve his desire, instead of just wondering if "would it have worked?"
Explanation:
In short, we can say that the poem states that Icarus did the right thing, because he allowed himself to try. He had a desire, which he knew was risky, but he preferred to use his skills, rather than just theorizing about what might or might not happen. Icarus had a desire and he challenged himself and went after it, instead of just whining and questioning.
The poem shows, in the eighteenth line, that even in the face of possible failure, Icarus' experience would allow him to know himself better, knowing his weaknesses and strengths.
My best answer would be C I hoped I helped sry if you get it wrong
Answer:
Exoskeletons provide less mechanical leverage.
Explanation:
There are two types of skeleton in living beings: the endoskeleton (which vertebrates possess, is lined with epithelial tissue and has bones and cartilage) and the exoskeleton, a skeletal structure that is located outside the body of the living being. , is an external skeleton. They are common in invertebrate animals, which have no internal bone structure.
The exoskeleton is a tough but flexible outer layer, not formed by bones, unlike the vertebrate endoskeleton. Its function is mechanical, chemical and biological protection, avoid excessive water loss, muscle support and serves as a connecting point for legs, wings and other appendages. However, this type of skeleton provides less mechanical leverage.
On the other hand, the endoskeleton is the name given to the internal skeleton, which is inside the body. This body structure is mainly seen in vertebrate animals and has the function of supporting and moving the body, as well as protecting some internal organs. Unlike exoskeleton, the endoskeleton provides more mechanical leverage.
Answer:
protons..................
