HEALTH MIDDLE SCHOOL

The ABO system consists of A, B, AB, and O. What are these four categories used to organize?A.
nursing home quality

B.
blood types

C.
medical files

D.
career pathways

Answers

Answer 1
Answer:

Answer:Cevap B Şıkkı

KAN GURUPLARI ÇEŞİTLERE AYRILIR VE A AB B 0 GİBİ SEÇENEKLERE AYRILIR

İYİ DERSLER

BERİTAN*
Answer 2
Answer: B. The answer is B, BLOOD TYPES

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Why is homeostasis important?

Answers

homeostasis is very important because in the wrong body conditions certain processes (osmosis) and proteins (enzymes) will not function properly.
“What is homeostasis and why is it important? Give an example of a body condition that must be controlled and how.
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In order to remember the definition of homeostasis it is useful to memorise the mnemonic ‘MACIE’; the Maintenance of A Constant Internal Environment. Conditions in the body must be constantly controlled because cells depend on the body’s environment to live and function. The maintenance of the conditions by homeostasis is very important because in the wrong body conditions certain processes (osmosis) and proteins (enzymes) will not function properly.

Conditions that must be controlled include temperature, blood sugar level and water content and they are all controlled by different hormonal and nervous systems.

For example, the maintenance of body temperature is controlled by the brain. The body’s temperature must be kept at 37 degrees because this is the temperature at which enzymes optimally function.

Temperature receptors in the skin detect changes in the external environment and pass this information on to the brain’s processing centre, the hypothalamus. The hypothalamus itself also has receptors that detect changes in the blood temperature. If the external/internal temperature changes, the hypothalamus will automatically trigger changes in the body’s effectors (sweat glands and muscles) to keep our temperature constant.

If we are too hot; glands in the skin secrete sweat onto the surface to increase heat loss by evaporation.

If we are too cold; arrector pilli muscles in the skin contract and cause the hair on our arms to stand up straight, trapping a layer of warm air next to the skin to reduce heat loss. It is the contraction of these muscles that causes the appearance of goosebumps when we’re cold.”

Which of the following are types of hereditary disorders? A. single-gene and chromosomal B. complex and duplex C. single-gene and duplex D. all of the above

Answers

For this question, it is a little tricky because of the presented options as answers. Single-gene and chromosomal are both types of hereditary disorders and also are one of the most common ones. Complex can be referred to as multifactorial and duplex might be referring to two single-genes, which might be something rare since it isn't an actual type of hereditary disorder. The answer to this question would most likely be A. single-gene and chromosomal. Choosing all of the above would also mean choosing what isn't true, so A. would be the most likely correct one.

The chromosomal and single-gene disorders are hereditary in nature and therefore, can be transmitted from parents to offspring.

Further Explanation:

A change or mutation in a particular gene of DNA results in a specific inheritance pattern and is called single-gene disorder. Such disorders are rare in the population and can be tracked easily within a family. The probability of its occurrence in the future generation can also be predicted. This disorder is categorized into three types: recessive, dominant, and X-linked.

When the dominant allele of a gene is affected it suppresses the expression of the other healthy allele is it recessive or dominant. It usually occurs in the heterozygous state. As a result the mutant allele gets expressed and displays the symptoms of the disease. The mutated dominant allele is passed onto every generation and therefore, the disease is expressed in everyone in the family. For example, Huntington’s disease is a disorder in the brain in which a single gene on chromosome 4 is defective.

In recessive disorders, the recessive allele is defective and the disease occurs only in the homozygous state when both the defective alleles are present. In case of heterozygous state, the healthy allele can suppress the expression of the recessive mutant allele. In order to transfer the disease to the offspring, both the parents must contain the defective allele. For example, sickle cell anemia.

The presence of defective X chromosome results in X-linked diseases. It can be either a recessive or dominant disorder. These disorders are mostly seen in males as they contain only one copy of the X- chromosome. Examples are hemophilia and Rett syndrome.

A mutation or abnormality in a person’s chromosomes results in chromosomal disorders. Down syndrome represents a chromosomal disorder in which an extra copy of chromosome 21 is usually present in an embryo. The extra copy is transmitted genetically from either parent to the offspring and causes developmental changes in the embryo as a result of which the child becomes mentally and physically abnormal.

Learn more:

1. Learn more about difference in DNA and RNA brainly.com/question/334927

2. Learn more about similarity between aerobic and anaerobic respiration brainly.com/question/1544781

3. Learn more about site of protein synthesis brainly.com/question/1420458

Answer Details:

Grade: College Biology

Subject: Genetics

Chapter: Single gene and Chromosomal disorders

Keywords:

Chromosomal disorders, single-gene disorders, mutation, chromosomes, genes, allele, Huntington’s disorder, Down syndrome, Sickle cell anemia, recessive disorders, dominant disorders, X-linked disorders.  

What do moveable joints enable to the body to do?

Answers

Movable joints allow the body to make wide range of movements an example could
be the Stern I claviculae joint your welcome :)
move able joints let the body be able to move a lot and be very flexible

A 10% increase in cigarette prices has been found to result in a _____ decrease of smokers.A.
2%
B.
4%
C.
10%
D.
20%

Answers

The best answer would be B, 4%. The amount you increase a cigar by should have slightly less than half of the number of smoke-buyers as a result, 2% is too low and it will not decrease by the same percentage the price increased.

Answer:

B. 4%

Explanation:

Identify one way the nutritional needs of infants are different than adults.

Answers

Explanation: Babies triple their weight in their first year, so they need much more nutrients than an adult would need so they can grow.

Explanation:

infants are young and dont have teeth to chew foods therfore often eat liquid foods like milk and baby food. Adults eat proper food like meat, vegetables, carbohydrates and protein.

Abraham Maslow developed his hierarchy of needs by studying people in poor health.Please select the best answer from the choices provided.

T
F

Answers

Answer:

True

Explanation:

By observing people who were less fortunate, Maslow was able to find out that you must fulfill the lower levels of needs before moving on to the next one.

Answer:

T

Explanation:

i took the test 2020
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