BIOLOGY HIGH SCHOOL

The human body contains about 5 liters of blood. The liquid portion of the blood is called ____________________________________________and makes up about 55% of the blood volume. The rest of the blood is made up of the formed elements. These consist of the _____________________________________________ (another word for red blood cells) and the ________________________________________________(another word for white blood cells) and cell fragments called ____________________________________________ which are responsible for clotting. All the blood cells are developed in the bone marrow thru a process called ____________________________________________________________.

Answers

Answer 1
Answer:

Answer:

The correct answer will be option-

1. Liquid portion of blood- blood plasma.

2. RBC- erythrocytes.

3. WBC- leukocytes.

4. Cell fragments- platelets.

5. Process- hematopoiesis.

Explanation:

The blood is the connective tissue present in the body which connects the two or more systems of the body.The centrifugation of blood showed that the blood is composed of liquid and solid particles as the liquid portion is suspended in the supernatant while the solid particles are present in the pellets.

The liquid portion of the blood is known as blood plasma while the solid portion is composed of three types pf cell: the red blood cell (erythrocytes), white blood cells (leukocytes) and the platelets. All these cells perform different functions like RBC helps in the transport of oxygen, WBC provides immunity to the cell and platelets helps in clotting of the blood.

These blood cells are formed in adults in bone marrow through hematopoiesis from the stem cells presents in the marrow.

Thus, the options are correct.
Answer 2
Answer:

Final answer:

The liquid portion of blood is plasma, making up about 55% of it's volume. The remaining consists of erythrocytes (red blood cells), leukocytes (white blood cells), and platelets which clot blood. These elements are developed in the bone marrow through a process called hematopoiesis.

Explanation:

The liquid portion of the blood is called plasma and makes up about 55% of the blood volume. The rest of the blood is made up of what's known as the formed elements. These consist of the erythrocytes (another word for red blood cells) and the leukocytes (another word for white blood cells) and cell fragments called platelets which are responsible for clotting. All the blood cells are developed in the bone marrow through a process called hematopoiesis.

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What is the greatest issue facing society that results from the development of new applications of cell technology?

Answers

The correct answer is C) how to reduce the cost of technology to make it widely available.

The greatest issue facing society, that results from the development of new applications of cell technology is how to reduce the cost of technology to make it widely available.

Stem cell technology combines the research and results of geneticists, cell biologists, and medical doctors to find new medicinal applications for distinct diseases. Scientists defined stem cells as progenitor cells that can renew themselves and multilineal differentiation. But the greatest issue facing society, that results from the development of new applications of cell technology is how to reduce the cost of technology to make it widely available. Today, that technology is very expensive and not all people can afford it.

The other options of the question were A) how technology can be used to serve the needs of most people, B) how to balance an individual's rights with meeting the needs of society, and D) how to develop as many diseases cure as possible with technology.

The greatest issue facing society that results from the development of new applications of cell technology is that it can make the arteries narrower especially for patients with heart diseases. Although cell technology has been revealed as an ideal cure for heart related diseases.

Cells such as verve and muscle cells contain more mitochondria than cells. Why?

Answers

A. Nerve and muscle cells use more energy because keep in mind the mitochondria is the powerhouse of the cell and provides it with enegy

how many copies of each chromosome are contained in each of the daughter cells resulting from meiosis?

Answers

Each daughter cell has 23 of the 46 chromosomes. Sister chromatids make up each chromosome. Daughter cells enter meiosis II, the final step. Two haploid cells result from meiosis I.

What is meiosis?

Meiosis is a specialized kind of cell division that occurs in the germ cells of animals that reproduce sexually. This form of cell division is responsible for the production of gametes, such as sperm and egg cells. This process requires two rounds of cell division, and at the end of it, there are four cells that each have a single copy of each chromosome.

There are 46 chromosomes total, and each daughter cell has 23 of them. Each chromosome is composed of two sister chromatids. In the second and last stage of meiosis, daughter cells participate. Meiosis I always results in the formation of two haploid cells.

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Answer:

Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes. Each chromosome consists of 2 sister chromatids. The daughter cells now move in to the third and final phase of meiosis: meiosis II. At the end of meiosis I there are two haploid cells.

Explanation:

Hope this helps.

how might a scientist a determine  whether trait sex-linked by observing the offspring of several genetic crosses

Answers

They use Punnett squares to determine the sex traits or possibilities of having a boy or girl. They also determine the sex linked trait or the genes.

portion of this DNA, known as a ________, is responsible for the inheritance of a trait, like eye color or blood type in humans. A) chromosome B) codon C) gene D) nucleotide

Answers

The answer is C) gene. Chromosome is a thread-like structure in the nucleus that consists of DNA and proteins. The basic units of DNA are nucleotides. A sequence of three nucleotides is known as codon. A gene is a sequence of nucleotides, i.e. portion of DNA responsible for the inheritance of different traits, such as eye color or blood type. Thus, the correct choice is C).

The answer is C: Gene

Doctors do not administer vaccinations to people who are too sick. Which best explains why? A. The weakened or dead form of the pathogen may not have any effect on sick people. B. The weakened or dead form of the pathogen may have a fatal effect when it is combined with medication that the sick people are taking. C. The digestive systems of sick people may be negatively affected by the weakened or dead pathogen. D. The white blood cells of sick people may not be able to efficiently handle the weakened or dead form of the pathogen.

Answers

The Correct answer is option D

When a person is sick then it means that its immune system is already weak and the white blood cells of sick people do not work efficiently.

In this case if the body is administered with vaccination then there are chances that the person might die or become adversely sick.

Vaccination is given to evoke immune response by the help of White blood cells and if it is already not working efficiently then the vaccine can make the make person more ill.
D. If you give someone a vaccine while they are sick the body might not be able to handle both "infections"
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