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2 years ago

Science has shown that smoking causes cancer. Which is an example of how society responded to this information?

Biology

2 answers:

Mama L [17]2 years ago

6 0

D or C i dont know but i think D

Yuliya22 [10]2 years ago

6 0

The correct answer is (c) Warning labels are required on the packs of cigarettes.

There are more than 7000 chemicals found in cigarettes. Out of which 250 are known to be toxic in nature. One of the primary ingredients of cigarette tobacco is nicotine, which is highly addictive. Due to this even if the smoker want to quit, they crave for it. Smoking can increase the risk of cancer as it has carcinogenic properties. It can also cause emphysema and heart disease. There are warnings on the packs of cigarette that is injurious to health so that the people consuming it can get information about the ill effects. The picture on the pack was made to make people aware that smoking can cause cancer.

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A molecule that blocks the activity of carbonic anhydrase would immediately. . .

harina [27]

Answer:

b. cause an increase in blood pH.

Explanation:

Carbonic anhydrases are zinc-containing enzymes that catalyze the reversible reaction of conversion between CO2 and bicarbonates (carbon dioxide hydration and bicarbonate dehydration). The conversion of bicarbonate to CO2 facilitates its entry into the cell. On the other hand, the conversion of CO2 to bicarbonate helps keep the CO2 inside the cell.

This enzyme is important in all living organisms for maintenance of acid-base balance (regulates pH ). For example, carbonic anhydrases lowers pH in the stomach by producing an acid.

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3 years ago

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Why do hens scream in the morning ?

aev [14]

<h2>♨ANSWER♥</h2>

Chickens are vocal creatures, and if you're a chicken keeper, you might notice that your flock is particularly noisy in the morning. Chickens can make noise in the morning for a few reasons, including; they want to get out of the coop for food and water, they've laid an egg, or because they're vocalizing to each other.

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4 0

1 year ago

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Diatoms are planktonic unicellular eukaryotes commonly found in oceans and lakes. They contain chloroplasts that have four membr

Zepler [3.9K]

Diatoms contain chloroplasts that have four membranes. These four membranes are evidence of secondary endosymbiosis (Option c).

<h3>What is secondary endosymbiosis?</h3>

Secondary endosymbiosis is a hypothesis used to explain why diatom chloroplasts have four membranes.

According to this hypothesis, diatoms received different genes from distinct photosynthetic and non-photosynthetic ancestors.

The acquisition of genes of different ancestors led to diatoms having chloroplasts with four membranes.

Learn more about the endosymbiosis hypothesis here:

brainly.com/question/2957447

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2 years ago

How do the chromosomes in most cells of an organism, such as the leaf cells of a plant, compare to the chromosomes in its reprod

Lunna [17]

Answer:

Reproductive cells have half the amount of chromosomes than body cells

Explanation:

I think that you are talking about body cells when you say "most cells in an organism." If that is the case, then the reproductive cells, sperm and egg cells, have half the amount of chromosome than body cells.

For example: Human body cells have 46 chromosomes. Human reproductive cells has 23 chromosomes.

In sexual reproduction, each parent gives 1/2 of a full set of chromosomes to create the full set needed for an organism.

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2 years ago

In sickle cell anemia which of these changes?

Kobotan [32]

Answer:

the shape of white blood cells

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3 years ago

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