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Andrei [34K]
2 years ago
13

10. Which of these statements is correct about the circulatory system?

Biology
1 answer:
aalyn [17]2 years ago
5 0

Answer:

  • all are true
<h2>mark brainleast plz please </h2>
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Imagine that a brown horse and a white horse cross to produce an offspring whose coat is making up of some brown hairs and some
irina1246 [14]

Answer:

Codominance

Explanation:

So this would either be codominance or incomplete dominance. With incomplete dominance, you tend to get a whole other colour- for example crossing black and white chickens and getting a blue chicken. If you cross brown and white, and get a mix, it must be codominance because both traits are shown.

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3 years ago
Certain elements, such as carbon and nitrogen, are recycled in nature and are released through the _________ of living things.
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Answer:

Decomposition

Explanation:

According to the carbon cycle when organisms die they decompose and release carbon.

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3 years ago
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What is climate change?
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3 years ago
1. Describe the structure and function of each of the three types of RNA.
Ket [755]

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:

6 0
3 years ago
Pregnancy, which is characteristically associated with changes in hormone levels in the body is a process tightly regulated by:
Blababa [14]

Answer:

Pregnancy, which is characteristically associated with changes in hormone levels in the body is a process tightly regulated by the hormon Human Chorionic Gonadotropin

Explanation:

The so-called pregnancy hormone is the Human Chorionic Gonadotropin (HCG). It only occurs during the gestation period and is responsible for regulating the entire process. Segregated by the placenta, it can be found in urine and blood.

The presence of the hormone in the urine allows to confirm the pregnancy with the test.   As in pregnancy, the placenta begins to form, the cells that make it up begin to stimulate the production of HCG, which causes the hormone levels to increase very rapidly in the first trimester of pregnancy

4 0
2 years ago
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