1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lina20 [59]
3 years ago
5

Mrs. gray, a 50-year-old mother of seven children, is complaining of dull, aching pains in her legs. she reports that the pain h

as been getting progressively worse since the birth of her last child. during her physical examination, numerous varicosities are seen in both legs. what pathologic changes have occurred in these veins?
Biology
1 answer:
BaLLatris [955]3 years ago
8 0
The answer is; Varicosities are recognized by the enlargement of the veins. Superficial veins are most likely involved because they have little support from surrounding tissues. The veins have become tortuous and dilated because of incompetent valves that allow the blood to pool, stretching the vein walls. The likely cause in this patient's case is her pregnancies, because the enlarged uterus exerts download pressure on groin vessels, restricting return blood flow to the heart.
You might be interested in
What are the two sensory functions of ears?​
Nat2105 [25]

Answer:

obviously listening and hearing

5 0
3 years ago
Describe the structures and functions of the digestive system
REY [17]
The function of the digestive system is digestion and absorption. Digestion is the breakdown of food into small molecules, which are then absorbed into the body. The digestive system is divided into two major parts: The digestive tract (alimentary canal) is a continuous tube with two openings: the mouth and the anus.
7 0
2 years ago
What does it mean to die of "natural causes" or to die of "old age"?
Shalnov [3]

Explanation:ya que el cuerpo se dessasta por  estar en funsionamieto pormucho tiempoc

7 0
3 years ago
Read 2 more answers
Imagine that a newly discovered, recessively inherited disease is expressed only in individuals with type O blood, although the
erastova [34]

Complete question:

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

A normal man with type A blood and a normal woman with type B blood have already had one child with the disease. The woman is now pregnant for a second time.

Assuming that both parents are heterozygous for the gene that causes the disease, what is the probability that the second child will also have the disease? Express your answer as a fraction using the slash symbol and no spaces (for example, 1/2).

Answer:

The probability that the second child will also have the disease is 1/16.

Explanation:

<u>Available data:</u>

  • Two genes independently inherited: one for blood type, the other for disease
  • Man with type A blood  x  Woman with type B blood
  • Both parents are heterozygous for the gene that causes the disease; Dd

If the man has A blood, and the woman has B blood, and they already have an affected child, this means that they must be heterozygous for blood type too.

Cross:  

Parentals)           AiDd         x      BiDd

Gametes)  AD  Ad  iD  id       BD  Bd  iD  id

Punnett square)      AD       Ad       iD       id

                     BD   ABDD  ABDd  BiDD BiDd

                     Bd   ABDd   ABdd   BiDd Bidd

                     iD    AiDD    AiDd    iiDD   iiDd

                     id    AiDd     Aidd     iiDd    iidd

F1) <u>Genotype</u>:

1/16 ABDD

2/16 ABDd

1/16 ABdd

1/16 AiDD

1/16 BiDD

2/16 AiDd

2/16 BiDd

1/16 Aidd

1/16 Bidd

1/16 iiDD

2/16 iiDd

1/16 iidd

<u>Phenotype:</u>

3/16 A/B normal

4/16 A normal

4/16 B normal

3/16 0 normal

1/16 0 affected by the disease.

3 0
3 years ago
• Give an example of how the atmosphere can change<br> the biosphere.
irga5000 [103]

By trapping heat, greenhouse gases contribute to our planet's warming. Because of its involvement in the Earth's carbon cycle and nitrogen cycle, the biosphere influences the amounts of some of the major greenhouse gases such as methane, carbon dioxide, and nitrous oxide.

3 0
3 years ago
Other questions:
  • Who is eligible for care within the veterans health administration?
    12·1 answer
  • The nurse is obtaining a health history from a patient and determines that the patient has had an unintentional weight loss alon
    8·1 answer
  • The use of _______ is expected to increase in the future.
    14·2 answers
  • How does DNA help with the transfer of genetic material from parents to offspring? A. Enzymes break down DNA, releasing amino ac
    15·2 answers
  • Two plants are crossed, resulting in offspring with a 3 dominant:1 recessive phenotypic ratio for a particular trait. This ratio
    9·1 answer
  • 10
    15·1 answer
  • Are cells an evolution​
    7·1 answer
  • If 1250 J of work is done on an object that weighs 50 N, how far can that<br> object be raised?
    6·1 answer
  • Show proof and work and ill give brainliest
    8·1 answer
  • What the difference between a sabot slug and rifled slug?.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!