BIOLOGY HIGH SCHOOL

What is one of the main differences between the phosphorus and sulfur cycles? A) Plants absorb phosphorus mainly from the air and sulfur mainly from the soil. B) Animals get phosphorus by eating plants and sulfur from the air they breathe. C) Human activities contribute only to the amount of sulfur in the atmosphere but not to that of phosphorus. D) The atmosphere has no significant role in the phosphorus cycle, but is an essential part of the sulfur cycle.

Answers

Answer 1
Answer: The answer is D) The atmosphere has no significant role in the phosphorus cycle, but is an essential part of the sulfur cycle.

Phosphorus is not abundant in the atmosphere. It comes mostly from the land and ocean. Phosphorus cycle through the lithosphere, hydrosphere, and biosphere, but not the atmosphere. The reason for this is that phosphorus cannot be found in the gas state, unlike the sulfur. On the other hand, sulfur cycle partially occurs in the atmosphere.


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MIDDLE SCHOOL

What is DNA polymerase

Answers

DNA polymerase is an enzyme that synthesizes DNA molecules from deoxyribonucleotides, the building blocks of DNA. The enzymes are essential for DNA replication as usually work in pairs o create identical DNA strands from a single DNA molecule.
HIGH SCHOOL

It is thought that President Abraham Lincoln suffered from a genetic disorder known as Marfan syndrome. Which types of fibers are affected in this disorder?

Answers

Answer:

elastic fiber

Explanation:

The genetic disorder affects the elastic fibre that is made of elastic microfibril, which is an important part of the connective tissue. These fibres are responsible for strength, support and elasticity of vital parts of the body such as heart valves, tendons, blood vessels etc.  

This genetic disorder which is inherited is characterized by the loss of strength of the connective tissue when the formation of elastic fiber is affected. This abnormal chemical makeup causes the Marfan syndrome, which affects the eyes, skin, bones, nervous system and the heart.

HIGH SCHOOL

Identify the structure of the human heart which is a large vein (right and left branches) that carries oxygenated blood from the lungs to the left atrium of the heart. (check out the hint) A) aorta B) coronary vein C) pulmonary vein D) inferior vena cava

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The pulmonary vein is the structure of the human heart which is a large vein that carries oxygenated blood from the lungs to the left atrium of the heart.

Answer:c) pulmonary vein

Explanation:

MIDDLE SCHOOL

In the united states, where can early geological periods be studied?​

Answers

you can study prehistoric times in a museum

HIGH SCHOOL

A school-aged child with cystic fibrosis has been admitted with a respiratory infection. The child has been very disruptive and angry with staff and parents. What does the nurse suspect is the reason for the child’s uncooperative behavior?

Answers

As children become irritable when they are in pain, afraid, and in uncertain surroundings. The nurse may suspect the child is having chest pain from the infection and is irritable and afraid. The child might be having issues catching their breath as well.
HIGH SCHOOL

Which occurs during translation? A.mRNA is created by using a DNA template. B.mRNA codons are joined by tRNA anticodons to assemble amino acids to form a protein. C.Protein is formed when a polypeptide chain is broken apart and released from ribosome. D.One strand of DNA is copied into a strand of rRNA.

Answers

The answer is B.mRNA codons are joined by tRNA anticodons to assemble amino acids to form a protein. According to the central dogma of molecular biology, DNA sequence specifies RNA sequence which specifies protein sequence. DNA sequence is first copied into mRNA sequence during transcription. Later, during translation, mRNA codons are joined by tRNA anticodons to assemble amino acids to form a protein

The Answer is B

mRNA codons are joined by tRNA anticodons to assemble amino acids to form a protein.

MIDDLE SCHOOL

What did Rudolf Virchow contribute to the cell theory

Answers

Rudolf Virchow was a biologist that is known as "the father of modern pathology." He played an important role in postulating cell theory. He concluded that cell arises from pre-existing cells.

What is cell theory?

Cell theory was proposed by Robert Hooke, Rudolf Virchow, and others. It stated cells are the structural and functional unit of living beings that comes from other cells that existed previously. The parent cell contains the genetic material that passes on to the next cell.

The division of the cell and its genetic material during division results in new cells from pre-existing cells that have some resemblance and characteristics to the parent cells. The fundamentals proposed by Virchow led to the classification of disease at the cellular level.

Therefore, Virchow concluded about the origination of cells from pre-existing cells.

Learn more about cell theory, here:

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Answer:

He concluded that all cells come from preexisting cells.

Explanation:

got it right on edge test :)

HIGH SCHOOL

What is a advantage of using pluripotent cells instead of multi potent cells in medical treatment

Answers

Pluripotent cells can differentiate into almost any type of cell.

Biology? I’m only in 8th grade science

Answer:

Explanation:

Pluripotent cells can differentiate into almost any type of cell

MIDDLE SCHOOL

PLEASE HELP PLEASE!!!!!!! The inheritance pattern of a disorder is illustrated in the pedigree chart. What type of genetic disorder is this? A) codominant B) autosomal recessive C) sex-linked recessive D) incomplete dominance

Answers

Answer:

Sex-linked recessive

Explanation:

Since only males are affected, this indicates that the disorder is sex-linked and it is recessive.

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