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Deffense [45]
3 years ago
5

Where are the nucleus and the electrons located in this atom? ​

Biology
2 answers:
pav-90 [236]3 years ago
7 0

Answer:

the nucleus is in the center of the atom while the electrons are around the nucleus

marshall27 [118]3 years ago
7 0
Electrons are found in shells or orbitals that surround the nucleus of an atom
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Organisms most likely to be found in extreme environments are ________.
ioda

Answer:

bacteria

Explanation:

In the most extreme environments on the planet, such as the surroundings of a volcano, we imagine an extremely hot and toxic place, a desolate place that is not conducive to life. In salt deserts the same image is repeated. However, this first impression may lead us to mistake, these environments have been shown to be rich in life, populated by organisms called extremophiles, which is a group composed of bacteria.

8 0
3 years ago
Read 2 more answers
Watson and Crick's model of DNA replication is called
alex41 [277]

Answer:

(B) semiconservative.  

Explanation:

According to the model proposed by Watson and Crick, the DNA molecule consists of two polynucleotide chains arranged on a helix around an imaginary axis, rotating to the right (a double helix). That is, the DNA molecule is in the shape of a spiral staircase, in which the "steps" are made up of nucleotide nitrogen bases and the "handrails" are covalently linked phosphate and sugar - so it is said that DNA is shaped like a helical ribbon. Also according to Watson and Crick DNA replication is semi-conservative, because each strand of DNA will give rise to another strand that will be complementary to its nucleotides.

8 0
4 years ago
During exhalation the air pressure on the outside of the lungs is (greater than / less than) the air pressure
zvonat [6]

Answer:

greater than

Explanation:

hope it helps

7 0
3 years ago
explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.
ki77a [65]

The genetic code defines how codons, sequences of nucleotide triplets, specify which amino acid will be added next during process of translation (protein synthesis).

The genetic code is universal among organisms. That means that the same codons code for the same amino acids in different organisms.

It is known which amino acids are coded by which codons. If we know sequences of amino acids, we then also know sequences of nucleotides in DNA/RNA. If we know DNA/RNA sequences we can then reveal relationships among different organism by compering similarities in those sequences.

3 0
3 years ago
Does commensalism involve abiotic factors or biotic factors ? ​
monitta

Answer:

Commensalism only occur among biotic factors

Explanation:

Abiotic factors are non-living factors that interacts with the biotic factor within an ecosystem. Commensalism is an association between two organisms in which one benefits and the other derives neither benefit nor harm.

From the above definition of commensalism, it is clear to note that it only involves two organisms rather than non-living organisms, hence; commensalism involves only biotic factors

4 0
3 years ago
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