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MissTica
3 years ago
15

The diagram shows a bacterium. Which labels best complete the diagram

Biology
1 answer:
Sliva [168]3 years ago
4 0

Answer:

X - Flagellum, Y - Bacterial DNA, Z - Cytoplasm

Explanation:

A bacterium is a living thing that are majorly known for causing diseases but are important for human life.

A bacterium is also consist of several organelles such as cell wall, cytoplasm, flagellum,  bacterial DNA, cytoplasm, ribosomes and others.

The diagram shows three main organelles that are X - Flagellum, Y - Bacterial DNA, Z - Cytoplasm. Flagella functions for the locomotion of the bacteria, bacterial DNA is a genetic material of the bacteria, and cytoplasm is a gel-like matrix composed of enzymes, water, nutrients and other waste material.

Hence, the correct answer is "X - Flagellum, Y - Bacterial DNA, Z - Cytoplasm".

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hoa [83]

Answer:

As far as i know, it's when the nerves at the top of your mouth (or the roof) sense the cold.

Explanation:

This is different to you sensing cold in your fingers or other parts of your body as it is closer to the roof of your mouth making your nerve feel much more. Since those nerves are exposed to that cold so much more than most other parts (and are closer to the brain, which i'm not sure if it affects anything) you feel a freeze which most people think they feel at their brain, hence the name 'Brain freeze'

Hope it helps!

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2 years ago
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Air moves from the alveoli to the blood after being inhaled into the lungs. The alveoli get oxygen to the blood and then the carbon dioxide moves from the blood to the alveoli, so it can be released when you exhale. :)

I hope I didn't make that sound confusing. xD
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3 years ago
In an important experiment, radioactively labeled bacteriophages were allowed to infect bacteria. In the first trial, the phages
Klio2033 [76]

Answer:

In an important experiment, radioactively labeled bacteriophages were allowed to infect bacteria. In the first trial, the phages contained radioactive DNA, and radioactivity was detected in the bacteria. Next, other phages containing radioactive protein were allowed to infect bacteria, and radioactivity was not detected in the bacteria. These experiments led to the conclusion that <u>genes of phage are made of DNA.</u>

Explanation:

Bacteriophages are the viruses which infect the bacteria. They bind to the surface of bacteria and inject the inner core and genetic material in the bacteria.

As in the first trial, the phages contained radioactive DNA, and radioactivity was detected in bacteria, it clearly shows that <u>genes of phage are made of DNA</u>. While, on the other hand,other phages containing radioactive protein were allowed to infect bacteria, and radioactivity was not detected in the bacteria clearly indicating that protiens are not entering the bacteria.

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Though cactus spines are modified leaves, they do not contain any of the cells or tissues characteristics of leaves when they mature. Cactus spines consist of just a core of fibers surrounded by sclereid-like epidermis cells. When the spines mature, all the cells in the spines are dead. The only living cells are found at the base of the cactus which enables the spine to continue growing.
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3 years ago
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Short sequences of DNA nucleotides are known as
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Answer:

C-Okazaki fragments

Explanation:

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