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
Margarita [4]
3 years ago
12

Why is negative O blood type the rarest blood type?

Health
1 answer:
Svet_ta [14]3 years ago
4 0
Oddly enough, type O blood in the U.S. is not by itself the rarest blood type. Actually O+ is one of the most common. But because O is the recessive of the A-B-O gene group, and also Rh- is recessive in it's gene, the combination makes it extremely rare. Roughly 85% if people have the Rh+ allele, and roughly 1/3 people are O, but those are only O+.
The rarest is actually AB-, because 3% or less are this type. O- people are around 5% of population.
However because O- blood is the "universal donor" (will not cause immune reactions with any other blood type when transfused in) for hospitals and blood banks, it is always in short supply.
You might be interested in
Which commonly abused drug is not psychoactive but still has serious long-term effects on the user’s brain? A: Rohypnol, B: Barb
xenn [34]

Answer:

Steroids

Explanation:

I got it correct on the test

7 0
3 years ago
If you delay a decision by changing the subject or pretending not to hear, which skill are you practicing?
Leno4ka [110]
A refusal is correct..

Please vote my answer brainliest. thanks!
8 0
3 years ago
use anorexia nervosa, bulimia nervosa, stress, addiction, and depressant in a paragraph or more? Please Help me!
galina1969 [7]

Eating disorders such as anorexia nervosa and bulimia nervosa have demonstrated the influence of psychological forces. Physiologically factors play a role in both anorexia and bulimia and they are challenging family settings and weight obsessed societal pressures. People with anorexia starve themselves but diet as well because they see and imagine themselves as a fat person. People who have bulimia binge and purge in secret. 

8 0
4 years ago
3 Discuss TWO ways in which some cultural views that exist may affect a relationship negatively.
olya-2409 [2.1K]

Answer:

Religious practice, s** expectations, gender roles. Those are HUGE encumbrances that can effect a relationship when two people come from different cultures. And are well worth discussing prior to starting a relationship with someone from a different culture .

Explanation:

6 0
2 years ago
Brian wants to study how toddlers tackle difficult situations by themselves in their parents' absence. While observing the child
Lelu [443]

Answer:

The correct answer is b) Experimenter bias.

Explanation:

The experimenter's bias is the research bias found in studies where the person in charge of the investigation unconsciously intervenes in the results or partially influences the participant.

In research, it is difficult for scientists not to be influenced by their emotions or prejudices, so the experimenter's bias is presented. This bias can be done at any stage of the study.

For example, it is difficult for Brian not to intervene and tie the shoelace to the child, although his study is to see how children addressed difficult situations, Brian for his intervention performed the experimenter's bias.

<em>I hope this information can help you.</em>

8 0
3 years ago
Other questions:
  • ecelia is working out at the gym and using the heart rate monitor feature on the treadmill. Her heart rate is at 187 beats per m
    9·1 answer
  • Is this ECG/EKG normal?
    8·1 answer
  • A client with chronic obstructive pulmonary disease presents with respiratory acidosis and hypoxemia. He tells the nurse that he
    6·1 answer
  • Life threatening infections which affect the fold of cartilage that covers the larynx are called
    8·1 answer
  • Doctors who want a lot of control over the cost of services, the environment in which they work, and the hours they work should
    12·2 answers
  • Sara has intense problems with leaving her house. She often refuses to do so, and in cases when she will go out, she simply must
    6·1 answer
  • What are two trustworthy sources to get information on foodborne illnesses?​
    5·1 answer
  • The term that means “a person who chooses
    6·1 answer
  • Based on the excerpt, which statement is true?
    12·1 answer
  • One major factor determining individual differences in bac after drinking alcohol is?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!