Answer:
Proxima Centauri
Explanation:
Of the three stars in the system, the dimmest - called Proxima Centauri - is actually the nearest star to the Sun. The two bright stars, called Alpha Centauri A and B form a close binary system; they are separated by only 23 times the Earth - Sun distance.
Go to the Prenatal Testing page for more details. If one parent has sickle cell trait (HbAS) and the other has sickle cell anaemia (HbSS) there is a one in two(50%) chance that any given child will get sickle cell trait and a one in two chance that any given child will get sickle cell anaemia.
Answer:
Competition among nectar- and pollen-feeding invertebrate pollinators and resource partitioning are affected by introduced Africanized Honey Bees. When Africanized Honey Bees compete with other species of honey bees for flowers, the Africanized bees may displace the other bees from the food sources.
Answer: Option B
Explanation:
An albedo can be defined as portion of sunlight that is reflected back into the atmosphere without being absorbed.
The substance that will have the highest albedo value will absorbs less and will reflect most of the light falling on it.
The substance having the lowest albedo will absorb most of the lights falling on it. Example a black sheet of paper will absorb most of the light falling on it.
In the given case, the client is recommended for ETT, that is, an Exercise Treadmill Test.
Various patients have underlying CAD, that is, coronary artery disease, however, it remains asymptomatic. Thus, prior to starting any new kind of intense activities after years of a sedentary lifestyle, it is suggested that the person should go for ETT to rule out any kind of underlying CAD.
An ETT records the heart's electrical activity on an ECG and takes the readings of blood pressure while one walks on a treadmill. It is usually done to check for any kind of heart disease, or to find of the treatment for heart ailment is efficient.