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2 years ago

Circle the correct word: Electrons contribute to an atom's (mass or volume).

Biology

2 answers:

vlabodo [156]2 years ago

6 0

Answer: Volume

Explanation: Only protons and neutrons contribute to the atom's mass, because electrons have a mass of only $\frac{1}{1836}$ that of the proton, so it's not even counted.

However, electrons take up 99.9% of the atom, in what is called the Electron Cloud.

yarga [219]2 years ago

4 0

Answer: volume

Explanation: Therefore, they do not contribute much to an element’s overall atomic mass. When considering atomic mass, it is customary to ignore the mass of any electrons and calculate the atom’s mass. So, it's volume.

Please mark as brainliest! :)

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The surgical removal of male reproductive organs is known as _______________.

Effectus [21]

Answer: The surgical removal of male reproductive organs is known as Orchidectomy.

Explanation: By the process of Orchidectomy male reproductive organs ( one or both the testes ) removed surgically. Orchidectomy is also known as Castration.

Orchidectomy is very helpful in case of testicular cancer. Because in that case it serve as treatment of cancer.

Orchidectomy is of three types -:

1 : Simple -: In this type of orchidectomy male gonads and spermatic cord is removed by incision. For the treatment genetic infection.

2 : Subcapsular -: In this type of orchidectomy not the entire gland only glandular tissues are removed. It is a Prostrate cancer treatment.

3: Inguinal :- In this type one or both the testes or entire spermatic cord is removed in incision in lower abdomen.

5 0

3 years ago

TRUE OR FALSE: Phospholipids that are a part of the nuclear envelope (membrane around the nucleus) can easily move from one part

Katena32 [7]

Answer:

False, because phospholipids are a type of lipids and the nuclear envelope contains nucleic acids.

Explanation:

Hope this helps.

4 0

2 years ago

Why do populations in the deep sea tend to have longer lifespans than those in higher layers

Marianna [84]

Answer:

The deep sea environment is more stable and is less impacted by detrimental events and phenomena such as changes in temperature changes and intense storms.

Explanation:

In 2018, researchers analyzed over 200 species inhabiting in both deep sea and near the sea surface across the world and found that deep sea organisms are more likely to have longer lifespans.

According to their results, the environmental conditions that characterize the deep sea is more stable, enabling deep-dwelling organisms to have longer lifespans. Moreover, deep sea organisms are more protected from events and phenomena that affect shallow-water species, such as changes in temperature and intense storms.

3 0

3 years ago

Charges in an electric field will move electrons to:

malfutka [58]

The charge will move towards the same direction

7 0

2 years ago

Read 2 more answers

In discriminating between a viable and non-viable early intrauterine pregnancy, which one of the following criteria can be used

Alecsey [184]

Answer:

The correct answer in discriminating between a viable and non-viable early intrauterine pregnancy is B: "Mean gestational sac diameter of > 25 mm and no embryo".

Explanation:

There are different criteria used to discriminate between a viable and a non-viable early intrauterine pregnancy. The most often used to diagnose pregnancy failure are:

- Crown-rump length criterion: This is the absence of cardiac activity by the time the embryo has reached crown-rump length. A crown-rump length of 7 mm or more with no cardiac activity has been suggested by the latest studies to diagnose a non-viable pregnancy. There is a substantial likelihood that a crown-rump length < 7 mm can result in a false-positive diagnosis of pregnancy failure.

- Mean sac diameter criterion: This is the absence of embryo by the time the gestational sac has grown to a certain size. The gestational sac increases as the pregnancy progress. It has been suggested by the latest studies to use a mean sac diameter of 25 mm or more, and no visible embryo to diagnose failed pregnancy. A mean sac diameter of 16 to 24 mm and no embryo is suspicious for failed pregnancy, but shouldn’t be used to diagnose it.

- Time-based criteria: This is the absence of an embryo by a certain point in time. If an initial sonogram shows that there is a gestational sac and a yolk sac, but about 11 days later there isn’t any embryo with cardiac activity, then a failed pregnancy can be established. The timing event in early pregnancy is precise and reproducible to perform a correct diagnosis.

There are also suspicious findings that may help to identify a non-viable pregnancy. These are not certain and have not been extensively studied yet, so they cannot be used to reliably diagnose a pregnancy failure. A few of these findings are an empty amnion, a small gestational sac size, and the yolk sac size.

- Yolk sac: An enlarged yolk sac sized over 7 mm is suspicious for a failed pregnancy.

4 0

3 years ago

Circle the correct word: Electrons contribute to an atom's (mass or volume).​

Circle the correct word: Electrons contribute to an atom's (mass or volume).