What is the name of the lymphatic tissue located in the small intestine and appendix?A) tonsils

B) nodes

C) polyps

D) adenoids

E) peyer patches

Answers

Answer 1

Answer: The answer will be : C polyps

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True or False? "Wendell Stanley discovered that the tobacco mosaic virus was not an organism, but was chemical in nature."

Answers

Its true
hope i could help you.

How does valence electron pooling explain why metals can be hammered into a sheet?

Answers

When forming bonds in metal, metal releases its valence electron to produce positive ions.

What is a valence electron?

Free radicals are electrons that exist in metallic bonds. It is simpler to alter the metal's shape because the electrons may easily flow between the atoms.

Whenever they establish bonds, metal atoms quickly surrender their valence electrons to produce positive ions.

Therefore free electrons found in metal alter the shape, due to the flow between the atoms.

Learn more about electrons, here:

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Electrons in metallic bonds are what are known as free radicals. They move freely among the atoms and create a "sea" of electrons, making it easier to change the shape of the metal.

Ralph is looking at a blood vessel under a microscope as part of his study about the cardiovascular system. He notices that the vessel contains blood and has valves. What is the blood vessel that he is observing?a. capillary
b. vein
c. lymph
d. artery

Answers

The right answer is vein (it contains blood and has valves).

The infra-cardiac veins of small and medium caliber possess this system of fight against gravity. The valves consist of a dense connective tissue, surmounted by endothelial cells, corresponding to a fold of the intima. They allow blood circulation in the sense organ / heart but prevent venous reflux.

Answer: b. vein

Vein is a blood vessel that exhibit thin muscular walls and it brings the deoxygenated blood from all the cells, tissues and organs back to the heart. In the veins the valves are present which prevent the backward flow of blood. Lumen of the vein is wide.

According to the above information vein is the correct option.

In a recent experiment, anti-bacterial hand sanitizer was compared to hand soap. Students washed their hands using the sanitizer or soap and warm water for two minutes; then they dried their hands with a paper towel. The standard of comparison was rubbing hands vigorously for 2 minutes in warm water, without any soap or sanitizer, and then drying with a paper towel. The sanitizer advertisement claimed to kill bacteria more effectively than any soap. After washing, hands were swabbed and then the swab applied to a culture plate and incubated. Finally, the bacterial cultures were counted. Students using the antibacterial santizer had the lowest bacterial culture count. What is the control in the experiment? A) washing with soap B) rubbing vigorously C) the time: two minutes D) rubbing hands in warm water

Answers

Answer:

The correct answer is - option D. rubbing hands in warm water.

Explanation:

The control group or the control is the variable or that is used in an experiment to check if the results are actually due to the experiment or to compare the result or effect of the experiment.

In this experiment, the independent variables are soap and the sanitizer and the dependent variable is the count of bacterial culture. To check the result or to compare the result that results are due to the experiment the control group is rubbing the hand vigorously in warm water.

2. Heat is released when fossil when fuels are burned. This is an example ofA. Kinetic energy to chemical energy
B. Chemical energy to thermal energy
C. Nuclear energy to thermal energy
D. Potential energy to chemical energy