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Dmitriy789 [7]
3 years ago
5

In which of the following cells are

Biology
2 answers:
Oksanka [162]3 years ago
7 0
B. Inside prokaryotic cells
love history [14]3 years ago
6 0
Prokaryotic Cells (B)
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Match each atom to the corresponding number of electrons it will steal or give away.
Stella [2.4K]

Answer:

1. Fluorine (7 electrons) => c. steals 1 electron

2. Calcium (2 electrons) => a. gives away 2 electrons

3. Oxygen (6 electrons) => d. steals 2 electrons

4. Lithium (1 electron) => e. gives away 1 electron

5. Xenon (8 electrons) => b. neither gives away nor steals any electron

Explanation:

Given the following valence electrons of the atoms listed above, each atom can be matched to its corresponding number of electrons it can steal or give away as they form bonds and attain a stable state:

1. Fluorine (7 electrons) => this will steal 1 electron from another atom to attain a stable state when it comes to make the number of electrons 8.

2. Calcium with 2 valence electrons, will give away this 2 electrons in its outer shell to be stable and form bond with another atom that will accept these 2 electrons.

3. Oxygen with 2 valence electrons, will steal 2 electrons to make the electrons in its outer shell 8, as it bonds with another atom to become stable.

4. Lithium will give away 1 electron to become stable when it combines.

5. Xenon with 8 electrons in its outer shell is in a stable state and kind of inert. It doesn't need to receive or steal any electron from or to any other atom in this state.

7 0
3 years ago
State two functions of a microscope​
sattari [20]

Answer:

what is microscope is a laboratory instrument used to examine objects that are too small to be seen by the naked eye.

FUNCTIONS : The microscope is one of the most important tools used in chemistry and biology. This instrument allows a scientist or doctor to magnify an object to look at it in detail. Many types of microscopes exist, allowing different levels of magnification and producing different types of images

3 0
2 years ago
Given the gene sequence ACGGCATTCGTACGT, which of the following choices would represent an insertion mutation?
skad [1K]

Answer:

D.ACGGCATATCGTACGT

Explanation:

D because ACGGCATATCGTACGT the A in between the 2 t's was added

5 0
3 years ago
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In the initial days of pregnancy, a woman often feels no symptoms at all. Women with ectopic pregnancies often
tatiyna

Answer:

See explanation.

Explanation:

The initial days and even weeks of pregnancy may happen without a woman being aware of the pregnancy. Even though the baby grows quickly, it starts out as just a fertilized egg. So it takes a while to be noticed. And there is plenty of room at first.

But with an ectopic pregnancy, the baby attaches, instead of in the uterus, outside of the uterus. In most cases, the baby attaches inside the fallopian tube. Outside of the uterus is not designed to provide support and space for the baby. As growth occurs, it can cause severe problems. This is dangerous and can cause bleeding, pain, and possibly shock of the woman's condition is not identified and treated.  

Hope this helps! Have an awesome day!! :-)

7 0
3 years ago
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100 POINTS AND BRAINLIEST Index fossils give us clues to_______________?
madreJ [45]

Answer:

Index Fossils can be used to identify a specific time period.

Explanation:

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3 years ago
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