Answer:
Raynaud’s disease (also called Raynaud’s phenomenon or Raynaud’s syndrome) occurs when the blood vessels in the hands and feet constrict in an overactive response to cool temperatures. People with Raynaud’s have extra sensitive blood vessels that become more narrow than normal, causing their hands and feet to feel temporarily cold and numb. It may happen during the winter time, or even in an air conditioned room. It can take 15 minutes for normal blood flow to return after warming.
There are two types of Raynaud’s: primary and secondary.
Primary Raynaud’s is the most common version (90% of those with symptoms) and isn’t linked to any underlying issues. Although people might experience discomfort while their fingers are numb and cold, it’s fairly harmless. Doctors haven’t identified any particular reason why this happens.
Secondary Raynaud’s signifies there is a link between these symptoms and another medical condition – usually an autoimmune disease like lupus or rheumatoid arthritis. It can also be caused by other secondary factors, such as taking certain medications, smoking, frostbite or jobs with repetitive motion or vibration.
Explanation:
Most of the time , price controls distort the working of the market and lead to oversupply or shortage. They can exacerbate problems rather than solve them
Based on kin selection Bob is most likely to help his brother Ralph.
Kin selection is a sub-theory of natural selection that states organisms tend to help those genetically related to them (relatives). In humans, this theory implies:
- The closest a person is in terms of genes, the most likely you are to help him/her.
- Helping relatives can sometimes decrease our chances to survive while increasing the survival chances of that person.
- We are less likely to help people that are not genetically related to us such as colleagues, friends, classmates, etc.
Based on this, Bob is most likely to help his brother rather than his step-sister, cousin, or best friend. This is because in terms of genetics Bob and his brother are very close.
Learn more in: brainly.com/question/8080709
Answer:
The statement that proves to be true is that the researcher will not interact with the participants.
Explanation:
The reason to support the statement is because the researcher should not be conducting any behavior as he/ she wishes to find genuine types of interaction that may lead to the main goal which is to show cooperation between peers. If there was anything planned or spoken between peers and researcher, then the latter would not be ethic when going through the observation method to gather the information that is intended to be used.
