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denis-greek [22]
3 years ago
9

Why are atoms of lithium, sodium, and potassium almost never found alone in nature

Biology
2 answers:
Nata [24]3 years ago
8 0
They only have one electron in their outer most shell which makes them very reactive.
yulyashka [42]3 years ago
8 0

Answer:

The elements are exist in nature in the combined and the free state. The metals and non metals may combine with the other elements in the nature.

Lithium, potassium and sodium are the highest reactive element. If they present in the free state, they can explode in the air catches fire easily. This is the main reason that they never found in the free state in the nature.

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The kind of sexual expression where the emphasis is placed on physical pleasure is called ___________________ and is more common
IRINA_888 [86]

Answer:

Body-centered sex

MEN

Explanation:

Sex is defined in various way and portrays different meaning. Some define Sex as always a means of closeness for procreation, or  a way of showing love and feeling good(pleasure). To some, it is a sense of duty in fulfilling other partner's wish.  

Body-centered sex is a kind of sexual expression where the emphasis is placed on physical pleasure. it focus and draw attention of having sex for pleasure rather than emotion. An old adage once say and i quote "women fall in love with people; men fall in love with genitals." Hence,  Body-centered sex  is common in MEN

5 0
3 years ago
How are luciferin and luciferase used today
alisha [4.7K]

Answer:

Luciferin is used, for example, in reporter gene assays to study gene regulation and function where expression of the luciferin-tagged reporter is a marker to indicate successful uptake of the gene of interest in recombinant DNA techniques. Luciferase is a heat-sensitive protein that is used in studies on protein denaturation, testing the protective capacities of heat shock proteins. Luciferase is an enzyme used for bioluminescence by various organisms in nature, most famously the firefly. The scientist produces a construct in which the regulatory region of a target gene is fused with the DNA coding sequence for luciferase

Explanation:

give the other person brainlest

3 0
2 years ago
Bacteria are important components of an ecosystem because they?
zalisa [80]
They are basically the next step up from atoms. They are smaller living organisms. (might not be helpful but it's a start)
7 0
3 years ago
A biologist who follows the _________ paradigm assumes that each part of a living organism is an adaptation and that the functio
attashe74 [19]

Answer:

Reductionism  

Explanation:

Reductionism is a philosophical theory used to explain different phenomena from simpler phenomena. This idea represents a useful methodology to understand complex processes, and it is widely used in molecular biology and genetics research fields

7 0
3 years ago
Select all of the answers that apply.
Paraphin [41]
The four laws or principles that are involved with the study of Stratigraphy are the following:
1. Principle of original horizontality
2. Law of superposition
3. Law of crosscutting relationships
4. Principle of Lateral Continuity
5. Principle of Faunal Succession 
6. The Law of inclusions
Therefore, the correct answers would be 1, 2 and 4. Hope this answer helps.
3 0
3 years ago
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