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NemiM [27]
3 years ago
8

HELP ASAP!! Which atom is present in everything that is alive or ever was alive? Provide facts.

Biology
1 answer:
gregori [183]3 years ago
8 0

Carbon is the atom, which is necessarily find in the living organism.

All the living organisms are made up of biomolecules. All the biomolecules are organic compounds. The substance cannot be consider as living, if it lacks nucleic acids. There are two types of nucleic acids DNA (deoxyribonucleic acid) and RNA (ribonucleic acid), both have a structure made up of carbon rings and chains.

Other than nucleic acids, proteins, enzymes, hormones etc are also made up of carbon. So, all the living cells, or dead remain of organism must have carbon atom.

Hence, the correct answer is option D. carbon.

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Answer:

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3 years ago
Which of the following most likely happpens when a thermal energy is removed from a chemical reaction?
zepelin [54]

Answer:

Fewer collisions occur between particles

6 0
3 years ago
C) Fill in the Punnett square below based on the parents' genotypes. (6 points)
krek1111 [17]

As parent's genotypes are missing here, alleles cannot be estimated in offspring, but it is possible to use the example above to estimate it.

<h3>What is a Punnett square?</h3>

A Punnett square is a diagram used in genetics to estimate genotypic and phenotypic frequencies in offspring from a given genetic cross.

In order to estimate offspring allele frequencies, we need to know parental genotypes by means of a Punnett square.

For example, if both parents are heterozygous for a gene whose alleles are called 'A' and 'a', the Punnett square in offspring is:

        A         a

A     AA      Aa

a     Aa       aa

In this case, 50% of offspring will be heterozygous (genotype 1/2 Aa), whereas 25% will be homo-zygous dominant (1/4 AA) and 25% will be homo-zygous recessive (1/4 aa).

In conclusion, as parent's genotypes are missing here, thereby alleles cannot be estimated in offspring, but you can use the example above to estimate it.

Learn more about the Punnett square here:

brainly.com/question/3522181

#SPJ1

7 0
2 years ago
Fundamental to the process of evolution is genetic variation on which selective forces can act in order for change to
pychu [463]

Answer:

C) adaptation

Explanation:

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4 0
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Parasympathetic stimulation
Angelina_Jolie [31]

Answer: b. causes the gastric glands to increase production of gastric juice.

Explanation:

The parasympathetic nerves are part of the autonomous nervous system. The parasympathetic predominates mainly during "passive responses" of the organism, such as satiety, rest and digestion. Its functions are: Promotes energy conservation, Reduces heart rate, Promotes glandular secretion, Protects the retina from excess light, Promotes emptying of cavities, Promotes rest and repair, Physiologically antagonizes sympathetic nervous system.

6 0
3 years ago
Read 2 more answers
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