How many electrons are in this atom? А. 13 в. 20 с. 7 D. 6

What region of the brain is known as the "relay center" for ALL sensory information

9966 [12]

The answer is A, Thalamus.

4 0

3 years ago

7. Red-cockaded woodpeckers live in mature open pine forest with little understory. One aspect of managing this endangered speci

Anni [7]

<h2>The Red-Cockaded Woodpeckers</h2>

Explanation:

Red-cockaded woodpeckers are sharp, socially adroit, and adorable.
They assemble settles by unearthing pits in old pine trees in the Southeast, which was an incredible transformative system until individuals cleaved down 97 percent of their natural surroundings.
Snakes are a portion of their most risky home predators, so the winged animals peck the pine trees' bark to make sap overflow down the tree trunk. The smooth of sap stops winds and protects the nest cavities above.
Each pine tree in a backwoods into timber or turpentine, it sets aside a long effort for trees to become large enough to help respectable size home depressions.
The tree timberlands these flying creatures advanced in was intermittently gotten out by fire, which is currently typically stifled, prompting woods that are unreasonably thick ridiculous.

3 0

3 years ago

Which of these is true about the size of the Sun?

PolarNik [594]

Answer:

D

Explanation:

because 1.3 million earths could fit in the sun

7 0

2 years ago

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We would expect that a 15-nucleotide sequence that includes a stop codon at the end (as part of the 15-nucleotide sequence) will

slega [8]

Answer: Four amino acids.

Explanation:

RNA (ribonucleic acid) and DNA (deoxyribonucleic acid) are polymers made up of long chains of nucleotides. Thus, a nucleotide is the basic building block of nucleic acids and consists of a sugar molecule (ribose in RNA or deoxyribose in DNA) linked to a phosphate group and a nitrogenous base. The nitrogenous bases can be Adenine (A), Thymine (T), Cytosine (C), Guanine (G) or Uracil (U) replacing T in RNA. DNA is the molecule that stores the genetic information to synthesize polypeptides or proteins (set of amino acids). When proteins need to be created, DNA is transcribed into RNA and this RNA is translated in ribosomes to create polypeptides.

Complementarity is the ability to combine with their complement. A and T (or U) are complementary, while C and G are complementary to each other. Complementarity is the principle of replication and transcription, because it is a propery of both DNA and RNA sequences. Their the nucleotide bases at each position of the sequences are complementary, allowing cells to copy information.

Nucleotides in RNA are grouped into codons, which consist of groups of 3 nucleotides where each codon codes for an amino acid. Therefore, the sequence of bases in nucleic acids determines which protein will be synthesized. Protein synthesis begins with a start codon (AUG, which codes for the amino acid methionine) and ends with a stop codon (UGA, UAG and UAA). So, if there are 15 nucleotides, there are 15 bases. Since they are grouped in groups of 3, we will have a polypeptide of 4 amino acids.

3 nucleotides form a codon, so 12 nucleotides form 4 codons giving 4 amino acids. The last codon, is formed by the last 3 nucleotides and form the stop codon that stop protein synthesis.

7 0

3 years ago

How does an atom become a positive ion?

solong [7]

An atom that gains a negative electron, it becomes a negative ion. If it loses an electron it becomes a positive ion. Some atoms lose electrons and become positive ions. Others gain electrons and become negative ions.

6 0

4 years ago

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