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3 years ago

How does an atom become a positive ion?

Biology

2 answers:

svet-max [94.6K]3 years ago

7 0

Answer:

A. It loses an electron

Explanation:

An atom becomes a positive ion when it loses an electron (then there are more protons than electrons in the atom) when it is trying to reach stability. This is called a Cation. The opposite of this is an Anion, when an atom gains an electron to reach stability and becomes a negative ion (because the number of electrons are higher than the number of protons).

gtnhenbr [62]3 years ago

5 0

Answer:

The answer is C

Explanation:

Mark the brainly

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Which of the following is a factor that, by itself, does not promote widespread changes in allele or genotype frequencies? a. Ne

defon

Answer:

A new mutation

Explanation:

A mutation refers to the random changes in the DNA of organisms. A mutation changes the allele and genotype frequencies by the introduction of a new allele in the gene pool.

However, mutations are not the major factor responsible for changes in the gene pool of a population as mutations are rare. The rate of mutations is very slow and does not allow it to serve as a major factor to change the allele and genotype frequencies.

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3 years ago

Do the information given and the map best describe adaptive evolution, convergent evolution, or coevolution? Explain your respon

miss Akunina [59]

Hi, the given question is incomplete, it is missing a diagram, the diagram is given in the attachment below,

Answer:

The correct answer is adaptive evolution.

Explanation:

Based on the given information, it is clear that it best illustrates the phenomenon of adaptive evolution. It is known that different species of finches exhibit an ancestor, which is common, however, all the species have shown adaptation based on the kind of food they are getting within their surroundings.

The evolutionary modifications that arise by getting adaptive to the specific environment are termed as adaptive evolution. These changes arise due to the phenomenon of natural selection, which further enhances the tendency of reproducing or survivorship after going through some of the challenges presented by the surroundings.

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3 years ago

___________that increase reproductive success will have a greater

Svetradugi [14.3K]

Reproductive success

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3 years ago

The plants in level 1 of a food pyramid obtain 30,000 units of energy from the Sun. How much energy is available for the organis

Stels [109]

Answer:

level 2 = 3,000 level 3=300

Explanation:

Only 10 percent will be transferred to the next level and 10 percent of 30,000 is 3,000. 10 percent of 3000 is 300

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3 years ago

How does drug resistance develop in bacteria?

GREYUIT [131]

Answer:

Bacteria develop resistance mechanisms by using instructions provided by their DNA. Often, resistance genes are found within plasmids, small pieces of DNA that carry genetic instructions from one germ to another. This means that some bacteria can share their DNA and make other germs become resistant.

Explanation:

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3 years ago