4 years ago

Many scientists are concerned about the excessive use of antibiotics because

1 answer:

5 0

Antibiotic resistance. As antibiotics are overused, the germs become resistant to it, and the ones that survive the antibiotic due to their resistance produce offspring that are also resistant, eventually making the antibiotic completely useless.

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The cell membrane regulates and controls what kind of ________ move in and out of the cell.

Fudgin [204]

Answer:

Molecules

Explanation:

I remember it from when I was in 8th grade and I had physics and science for my year in 8th so yeah that’s how I got that answer.

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3 years ago

Which of the following is NOT an example of a selection pressure?

Lena [83]

Answer:

B. Surgery

Explanation:

I am not entirely sure but based on the definition of selection pressure (which talks about how external agents affect the survival of an organism) surgery is does not meet the definition.

A tiger hunting a prey affects the survival of prey. Beginning of ice age is an environmental agent that can affect survival of organism that cant tolerate cold. Antibiotics are drugs that can kill bacteria thus lower their survival. Surgery can actually increase survival if some form of disease is being treated.

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3 years ago

What is osmosis? *

steposvetlana [31]

I’m pretty sure it’s B

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3 years ago

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Which of these molecules is not a product of the Electron Transport System?

bixtya [17]

The answer would be B) oxygen. In the electron transport chain, oxygen is a reactant. It reacts with 4 electrons and 4 hydrogens to form 2 water molecules. NAD plus is a product of NADH losing an electron. FAD is a product of FADH2 losing an electron.

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4 years ago

The _________________ are new substances that are created following a chemical reaction.

lora16 [44]

Answer:

products

Explanation:

reactants combine to produce products in a chemical reaction

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3 years ago

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