How many units of information does each gene contain? A. 1 B. 10 C. 100 D. 1000

Answers

Answer 1

Answer:

1000 units of information

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Predator-prey relationships DECREASECompetition DECREASE
Toxins BOTH
New habitat BOTH
Disasters DECREASE
Increased food source INCREASE

Answers

This is correct to me

Answer:

thx

Explanation:

What is one way scientists get information about the evolutionary history of species?

Answers

by studying a particular species .

What chemicals are in cigarettes

Answers

Cigarette smoke contains over 4,000 chemicals, including 43 known cancer-causing (carcinogenic) compounds and 400 other toxins. These cigarette ingredients include nicotine, tar, and carbon monoxide, as well as formaldehyde, ammonia, hydrogen cyanide, arsenic, and DDT. Nicotine is highly addictiv

there are many but I will give you the top ten dangerous chemicals.

1. Benzene

Benzene is a compound(you can say chemical) that most likely to cause leukemia (blood cancer). Benzene is commonly used in gasoline and pesticides. Smoking a cigarette would expose half of the benzene in that 1 cigarette.

2. Formaldehyde

This is a disinfectant that kills all microbes and is used to preserve dead bodies. Amongst a lot of other problems, it causes eye irritation and coughing problems. But there's more about this, Formaldehyde can affect not just the smoker himself, but people near around the smoker.

3. Tar

Yes, the same thing that is on every single road. Tar is the residue produced by the burning tobacco. The chemicals produced cause cancer and the residue id the result of the yellow teeth due to smoking

4. Arsenic

One of the most dangerous compounds, arsenic can cause cancer as well as damage the heart and its blood vessels. Over time, it accumulates in a smoker's body. It even worsens the effect of other chemicals by interfering with our body's ability to repair our DNA and giving us a longer, healthier life.

5. Cadmium

Did you know you also smoke that compound that is used to make batteries? This toxic metal not only causes cancer but also damages kidney as well as the linings of the arteries!

6. Chromium

Blame chromium for letting carcinogens stick to the DNA and damage it completely. Chromium is also used for making dye, paints, and metallic alloys, and hence inhaling this also causes cancer. Now you know why smoking can kill you.

7. Hydrogen Cyanide

This compound increases the risk of cancer by damaging cilia. Cilia is a (tiny hair-like substance that lines the airways and helps clear toxins away. If cilia gets destroyed, the lungs become more vulnerable and more toxins easily enter the air passage.

8. Carbon Monoxide

Who knows not about the harmful effects of Carbon Monoxide? A colorless, odorless gas, CO makes up to 3-5 percent of tobacco smoke. It sticks to the red blood cells instead of oxygen, as a result of which, the amount of oxygen transferred gets lowered, thus harming our respiratory system.

9. Nitrogen Oxide
This gas is a major air pollutant and causes inflammation of the lungs. The problem is when a particular person is not smoking, the internal nitrogen oxide production shuts down. That's the reason why regular smokers mostly suffer from heavy breathing.
10. Ammonia

Remember that strong ammonia smells in the Chemistry lab that almost made you faint? Yes, that's the chemical found in cigarettes too. This is the chemical that is responsible for enhancing the most addictive nature of nicotine, which is also commonly used as a toilet cleaner.
Still, think smoking is cool? Look up at people's mistake smoking a pack. My Grandad was rushed to the hospital because he was a smoker. Cigarettes can ruin your life and your family.

Hope this helps...

The tundra is cold year-round. it has short cool summers and long, severe winters. The tundra has a permanently frozen sublayer of soil called permafrost. Like the desert, the tundra receives little precipitation, about 4 to 10 inches per year, and what does fall is usually in the form of snow or ice. It has long days during the growing season, sometimes with 24 hours of daylight, and long nights during the winter. Which adaptations would you expect to see in plants growing in the tundra? A) they are having a neutral impact on the environment by acting as decomposers. B) they are having a positive impact on the environment by acting as decomposers. C) they are having a negative impact on the environment by acting as decomposers. D) they are having a predatory impact on the environment by acting as decomposers.

Answers

B) they are having a positive impact on the environment by acting as decomposers.

B) they are having a positive impact on the environment by acting as decomposers. Here ya go :3

Can bacteria undergo mitosis? Why or why not?

Answers

Answer:No

Explanation:

They do not have a nuclear membrane surrounding their cellular DNA

Answer:

Prokaryotes, such as bacteria, do not have a nuclear membrane surrounding their cellular DNA, so cell division is happens differently than in eukaryotes. Even though the cell does not undergo mitosis, the end result is the same.

Coach Wood's class is trying determine what factor is most important in the growth of earthworms. Each day, they take theMETRIC length of four different worms in four different soil samples. Today, it is Moore's turn to measure the earthworms. For the
worm above, Moore records a length of 6.0 cm. Explain whether Moore's recording is accurate and why.

A)The earthworm length is shorter than 6.0 cm because the worm is curved.

B)The earthworm length is shorter than 6.0 cm because Moore used the
incorrect units.

C)The earthworm length is longer than 6.0 cm because the worm needs to
be straightened.

D)The earthworm measurement is accurate because Moore subtracted the
beginning and ending points from the ruler.

Answers

Answer:

C)The earthworm length is longer than 6.0 cm because the worm needs to

be straightened.

Explanation:

The choice is true because the image clearly illustrates that the earthworm is screwed into a part of its body. To make a proper measurement the earthworm must be fully stretched and measured from the head to the extreme tip of the "tail"

D) the earthworm measurement is accurate because moore subtracted the beginning and ending points from the ruler

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