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
Over [174]
3 years ago
8

Which are types of star systems?

Biology
2 answers:
sladkih [1.3K]3 years ago
7 0

Answer:

binary stars

Explanation:

Anarel [89]3 years ago
5 0

Answer:

- binary stars

Explanation:

A binary star is a star system. It is composed of its stars that orbit the same center of mass, that is, orbit around each other.

If two stars orbit each other, but maintaining a great distance from each other, they evolve independently and are called a separate pair. If they are close enough for matter to transfer between them due to tidal forces, they are called close pair or contact.

Binary stars obey Kepler's Laws of Planetary Motion, which are three:

  • 1st law (law of orbits): Each star moves along an elliptical orbit, with the center of mass of the system at one of the foci of this ellipse.
  • 2nd law (law of areas): the line connecting one star to another scans equal areas at equal time intervals.
  • 3rd law (harmonic law): The square of the orbital period of the stars is proportional to the cube of their average distance to each other.
You might be interested in
What is the purpose of the oil on the oil immersion lens?
IRISSAK [1]

I will be submitting this in a couple minutes and I will let you know what the correct answer was.

6 0
4 years ago
W
Rashid [163]

Answer:

I don't completely understand what you mean by disease. If you're talking about an infectious disease, then, the answer will be ALL OF THE ABOVE

Explanation:

Infections are contagious, communicable diseases that can spread rapidly through contact with an infected person, animal or an environment that contains large quantities of a pathogen.

Infectious diseases that spread from animals to humans are called zoonotic diseases. The animal acts as a vector, with the pathogen either lying dormant or as a symbiont. For example, the Congo virus is an example of a zoonotic disease that spreads to humans from cattle.

7 0
3 years ago
Vertical structural members that exterior wall sheathing and siding may be attached to are called:
kap26 [50]

The Answer is Studs.

Vertical structural members are called Studs. This is the term which is used in construction. There are exterior and interior walls which are framed, these walls are known as bearing walls, and some are also non- bearing. Whenever there is foundation in a place, after the first floor deck these bearing walls are formed.

<span> </span>

7 0
3 years ago
In 1918, the Russian Tsar Nicholas II was deposed, and he and his family were reportedly executed and buried in a shallow grave.
Arte-miy333 [17]

Answer:

This can be evaluated with DNA test- by comparing the mitochondrial DNA (mtDNA)of the Tsar family with the woman-Anastasia. <u>Maternal DNA is inherited uninterrupted from generation to generation </u>

Explanation:

The living consort of Queen of Elizabeth ,Prince Philip, <u>is a grand nephew of Tsar Nicholas 11.</u> They  shared the same maternal ancestry.

Therefore, his   mitochondrial   must be maternal, and compatible with that of the Tsar Nicholar. Male children always inherit maternal mitochondria (mtDNA)and  passed from generations to generation.

T<u>he blood samples of prince Philip can be  taken, to extract the mtDNA,and matched  with the sample  of mtDNA obtained from the exhumed bodies of the Tsars,</u><u> </u>to reaffirmed the compatibility of the ancestry .  

If sample of the compatible mtDNA,  from price Phillip was compared with the mtDNA of the woman who claimed to be Anastasia, her claim can be validated.

Matched sample  shows she was the daughter, while negative result proves otherwise.

<em></em>

7 0
3 years ago
Each of two parents has the genotype brown divided by blond​, which consists of the pair of alleles that determine hair color​,
Andru [333]
Mendelian, monogenic or monofactorial heredity is used to characterize disease transmission due to a mutation in a single gene. This mode of transmission follows the laws of Mendel, which explains the use of the term "Mendelian".It is inherited by syngamy and then karyogamy of maternal and paternal genomes at the time of fertilization.
1. <span>The different possible outcomes are:
The parents:  MB MB
The children:  MM   Mb   Mb   b

2. </span><span>The probability that a child of these parents will have the blond divided by blond genotype:
MM  Mb  Mb  bb   ==> 2/4 ==> 50%

</span><span>3. The probability that the child will have brown hair color:
</span>MM  MB  MB  BB   ==> 3/4 ==> 75%


6 0
3 years ago
Other questions:
  • If a scientist unknowingly breaks the law, he is guilty of
    5·2 answers
  • Can someone please help find the definitions to my biology vocabulary!!
    6·1 answer
  • A factor which could increase preload and how would stroke volume be affected
    13·1 answer
  • What is a protron needed for
    6·1 answer
  • PLEASE HELP NEED ASAP BRAINLIEST.
    14·1 answer
  • Yeast were exposed to various sugars in culture without oxygen According to the data in the culture with which sugar would
    10·1 answer
  • Which of the following statements associated with cellulose is false? A) It's a linear polymer of glucose. B) The glycosidic lin
    12·1 answer
  • What does aerobic respiration start with?
    10·1 answer
  • How are astronomers able to determine what elements are found in other stars and galaxies?
    5·1 answer
  • I need help with this one! Please!​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!