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tester [92]
3 years ago
6

Respiratory mechanism is controlled by which nervous system​

Biology
1 answer:
JulijaS [17]3 years ago
7 0
The medulla I believe??? “:) hope this helps!
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The illustration shows biotic and abiotic factors in a pond ecosystem. Which are biotic factors of the pond ecosystem?
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All organisms that have life, both plants and animals.

Explanation:

You didn't provide an illustration, but I guess I can still help. Biotic factor means that it has life, abiotic means it's not alive (hence the a- at the beginning.) Some biotic factors of a pond ecosystem include: earthworms, fishes, frogs, plants and insects.

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12. If an ecologist is looking at how many individual organisms live within a certain population, he or she is studying the popu
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Family of orientation is the family that you create with a partner.<br> True<br> False
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Answer:

False

Explanation:

A family of orientation refers to the family into which a person is born. A family of procreation describes one that is formed through marriage. These distinctions have cultural significance related to issues of lineage.

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1. Describe the structure and function of each of the three types of RNA.
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Answer:

1.

mRNA - Messenger RNA: Encodes amino acid sequence of a polypeptide.

tRNA - Transfer RNA: Brings amino acids to ribosomes during translation.

rRNA - Ribosomal RNA: With ribosomal proteins, makes up the ribosomes, the organelles that translate the mRNA.

2.

Transcription is the process by which DNA is copied (transcribed) to mRNA, which carries the information needed for protein synthesis. Transcription takes place in two broad steps. First, pre-messenger RNA is formed, with the involvement of RNA polymerase enzymes.

3.

During translation, which is the second major step in gene expression, the mRNA is "read" according to the genetic code, which relates the DNA sequence to the amino acid sequence in proteins. Each group of three bases in mRNA constitutes a codon, and each codon specifies a particular amino acid (hence, it is a triplet code). The mRNA sequence is thus used as a template to assemble—in order—the chain of amino acids that form a protein.

Explanation:

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Imagine that a newly discovered, recessively inherited disease is expressed only in individuals with type O blood, although the
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