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
oee [108]
3 years ago
11

What evidence shows that white dwarfs must be very small?

Biology
1 answer:
Drupady [299]3 years ago
7 0

Spectral analysis proposes that there is no hydrogen fusion roughly speaking. They are hot since they are very thick. So if you are a convinced high density and temperature and still not doing synthesis, you must be small. Also, stellar evolution models are founded on the observation of planetary nebulae, where stars have shed most of their mass after being red giants. The physics designates a small, hot, central remainder. 

You might be interested in
Qué tipo de anomalía cromosómica es el síndrome de down y Cómo se manifiesta? ¿Qué tipo de anomalía cromosómica es el síndrome d
sashaice [31]

Answer:

El síndrome de Down es el resultado de un niño nacido con un cromosoma adicional agregado al número esperado de cromosomas (generalmente destinado a ser 46).

El síndrome de Angelman se produce cuando un niño nace con una mutación en el 15º cromosoma heredado de los padres.

Explanation:

En el síndrome de Down, se agrega un cromosoma adicional al complemento de cromosomas que un niño debe heredar de sus padres. Se supone que un niño tiene un complemento de 46 cromosomas (23 cada uno) de ambos padres. Una vez que hay un aumento en este número, se establece el síndrome de down. Es una condición cromosómica común. Puede manifestarse como una trisomía, causada por la no disyunción durante la división celular, lo que resulta en 3 copias del cromosoma 21 en lugar de 2 copias, mosaicismo, donde una mezcla de células se clasifican en 2 grupos que contienen un complemento completo de 46 cromosomas y el otro un el cromosoma adicional lo hace 47 y la translocación ocurre cuando un cromosoma 21 adicional o parte del 21 se une al cromosoma 14. Los niños generalmente tienen cabezas y orejas pequeñas, cuellos cortos, caras planas, etc.

En el síndrome de Angelman, el cerebro se ve afectado en gran medida, debido al efecto de la mutación en el sistema nervioso. La pérdida de la función en el 15º cromosoma es responsable del síndrome de Angelman, que resulta en la incapacidad del niño para hablar, mantener el equilibrio, moverse, un desarrollo deficiente tanto física como intelectualmente.

5 0
3 years ago
Select the correct answer. A __ is an agent that causes disease. All ___ are pathogens.
Semmy [17]

1) pathogen

2) viruses


Some bacteria are not harmful to your body hence not all of them are pathogens


7 0
3 years ago
Which of the following describes the correct stepwise assembly (in vitro) of the eukaryotic RNA polymerase II preinitiation comp
PilotLPTM [1.2K]

Answer: (TFIID) TBP-> TFIIB IIA--> TFIIF RNA POL II

Explanation:

Remember that in eukaryotic organisms, transcription and processing are coupled processes. There are 3 different types of Rna pol. In the case of RNA pol II transcribes genes that encode proteins (mRNA synthesis). Transcription factors are involved, for example: TFIID, TBPs, TAF (recognizes TATA promoter center, regulatory functions), TFIIA (stabilizes TBP union, antirepressant function), TFIIB (RNA Pol II starting point selection).

7 0
3 years ago
The image shows an ant that has been infected by a fungus, with the sporangium of the fungus emerging from the ant’s head. What
masha68 [24]
Parasitic.
you need to know each of these choices meaning so that it will be easier to solve such a problem.
parasitic means it consumes its host and leave it only exhausted adn maybe dead.
autotrophic is like plants, they can make their own food.
saprophytic means is called on an organism, especially fungi, that feeds on dead material only.
5 0
3 years ago
What is one different between savanna and grasslands biomes
Vika [28.1K]
The savanna is very dry and desert like. Grasslands get precipitation and have tons of grass, hence the name grasslands.
8 0
3 years ago
Read 2 more answers
Other questions:
  • What is true about mountain and valley breezes
    9·2 answers
  • In what situation does rna play a role similar to enzymes
    13·1 answer
  • Compare the amount of ATP made during aerobic cellular respiration to the amount of ATP made during anaerobic cellular respirati
    13·1 answer
  • Which three components are common to all amino acids?
    12·2 answers
  • A controlled experiment measures the effect of one variable? True or false
    11·1 answer
  • What is a gene?
    8·1 answer
  • How does the cell membrane help maintain the homeostasis of water content?
    7·1 answer
  • In corn, small pollen (sp) is recessive to normal pollen (sp+) and banded necrotic tissue, called zebra necrotic (zn), s ssive t
    11·1 answer
  • (PLEASE HELP MEH, IM 2 STOOPID)
    12·1 answer
  • Name two organelles that get rid of waste in the cell?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!