BIOLOGY HIGH SCHOOL

What is the main reason that people are hesitant to use nuclear energy?

Answers

Answer 1
Answer: The main reason why people are hesitant to use nuclear energy, is because it would produce so much radioactive waste which in turn can cause negative effects on the human body when exposed to them and would cause new types of diseases to appear.
Answer 2
Answer:

Answer:

a. it produces radioactive waste.

for edgenunity

Explanation:

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Some insects can walk on the surface of water. Which behavior of water is responsible for this phenomenon? A. Capillary action B. Solvent behavior C. Surface tension
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What do aerobic respiration and anaerobic respiration have in common?

a. Describe three conditions that create opportunities for normal microbiota to become an opportunistic pathogen. b. Explain three ways in which a bacterium could gain resistance to an antibiotic. c. You are a food manufacturer and you need to sterilize one of your products: powdered milk contained in a glass jar, what would be the best way to do this? d. Explain the mechanism of action of the aminoglycoside group of antibiotics? e. Explain two mechanisms which antibiotic resistant bacteria would be using to be resistant? f. Ten people a stuck in an elevator with a clumsy scientist who drops a vial containing 11 million cells of dangerous bacteria. When the vial breaks the sample aerosolizes. The ID50 of this organism is 5X105 cells and the LD50 is 1X106. How many of these people will potentially get sick and how many could die? Explain your answer

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B.
genetic variation causes antibiotic resistance

Antibiotics, in one way or another, come from bacteria and fungi themselves. These antibiotics are produced naturally by the bacteria and fungi to eliminate competition with other bacteria present. With such great discovery in this endeavor, many lives were saved. It was not long that bacteria found ways to be resistant to antibiotics. Bacteria that was found on frozen dead bodies are resistant to modern antibiotics. There are two currently known ways as to how bacteria builds resistance against antibiotics. One would be mutation. Due to continued exposed to the antibiotic, the bacteria would adapt to it and cause themselves to mutate to combat antibiotic. The second one would be the swapping of DNA or as what scientists call the horizontal gene transfer. This only applies though to some or few bacteria that already has this feature built-in to them.

A biological membrane is selectively permeable in that it can, to some extent,control which substances pass through it. Based ont he information provided in Book 5, describe the general structure of a biological membrane making particular reference to the significance of the hydrophobic and hydrophilic properties of the major biological molecule component of membranes.Explain how this membranes tructure results in the essential property of semi-permeability. Your answer should include a brief, simple explanation of the term diffusion in the context of cell membranes.Could anyone give me an idea how to answer this question?
Thank you!

Answers

Cell membranes are composed of what we call a "phospholipid bilayer" composed of phospholipids. Phospholipids have a hydrophillic (‘water loving’) head and a hydrophobic (‘water fearing’) tail. Water can get close to the hydrophillic head while it cannot pass through the hydrophobic tail, thus protecting the cell from foreign substances it does not need. Because of this dual property, the membrane can choose what substances may enter through it and this is what constitutes its semi-permeability.

One of the ways substances can enter through the membrane is through passive transport or diffusion, the movement of substances from higher concentration to lower concentration. This process does not require energy. Substances like oxygen and water easily diffuse through channel proteins when the concentration outside the cell is higher than the inside. 

You will have the following equipment available to you to monitor temperature and carbon dioxide and oxygen. This data will be useful to study the effect of temperature on cricket metabolic rate because

Answers

Answer:

Yes. Levels of Carbon dioxide must be equal in proportion to metabolic rate of the system.    is a product of cell respiration and should be monitored.

Explanation:

Levels of carbon dioxide must be equal in proportion to metabolic rate.

Carbon dioxide is a product of cell respiration and should be monitored to avoid surfocation and likes

As the  temperature of the system(or body) increases, oxygen level decreases leading to increase in carbon dioxide level which is very dangerous for any system or an organisms. This can leading to Astma and other respiration problems.

if the united states continues using petroleum in vast amounts, it will become even more dependent on foreign sources for this resource. why?

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Since we've been using petroleum in vast amounts organizations such as OPEC have appeared which restricts the U.S which ensued our country into suing; if this lawsuit passes then we will possibly be taking more petroleum than ever before due to it's demand such as it's needed for machinery and vehicles and etc. Most petroleum are from middle eastern countries, so our dependency will run rampant which will make us adhere to any of their policies pertaining to this fossil fuel in the near future.

The bacterium Bacillus anthracis, which causes anthrax, has been developed as a biological warfare agent. Which one of its following abilities could have led to this? Its ability to undergo reproduction in the absence of energy sources. Its ability to form endospores in harsh conditions. Its ability to grow rapidly in harsh conditions.

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Im not sure about it being developed in a lab but the answer to your question is B

Describe how the organisms in your cladogram are related through common ancestors.

Answers

A cladogram shows how species are related by descent from a common ancestor. A classification of organisms on the basis of such relationships is called a phylogenetic classification.

A phylogenetic classification involves organisms in a clade with their common ancestor.

How organisms are related in cladogram?

A cladogram consists of an organism being studied, lines, and nodes where those lines cross. The lines represent evolutionary time or a series of organisms that lead to the population.

A clade is a group of living organisms and the common ancestor they are derived from.

Therefore, the cladogram is related to common ancestors through their species.

Learn more about cladogram common ancestors here:

brainly.com/question/10712018

Answer:

Describe how the organisms in your cladogram are related through common ancestors. Organisms c and d share a common ancestor, a and d and b and c 5. Label : The purple lines represent a characteristic change, or adaptation . ... The “parsimony score” calculates how many changes occur in a given cladogram.

Explanation:
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How does radiometric dating help scientists pinpoint the age of a fossil? A. In radiometric dating, scientists mix the carbon in a fossil with carbon from similar fossils whose age they know. By comparing the carbon, they can tell the exact age of the fossil. B. Radiometric dating allows scientists to find fossils in only the lowest and oldest layers of sediment. C. In radiometric dating, scientists place samples of a fossil in certain liquids until the samples dissolve. The rate at which they dissolve indicates the age of the fossil.