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Nana76 [90]
2 years ago
14

What determined the temperature, density, and ratio of hydrogen to helium of the universe soon after the Big Bang?

Biology
1 answer:
seraphim [82]2 years ago
5 0
In 1929 the American astronomer Edwin Hubble discovered that the distances to far-away galaxies were proportional to their redshifts. Redshift occurs when a light source moves away from its observer: the light's apparent wavelength is stretched via the Doppler effect towards the red part of the spectrum. Hubble’s observation implied that distant galaxies were moving away from us, as the furthest galaxies had the fastest apparent velocities. If galaxies are moving away from us, reasoned Hubble, then at some time in the past, they must have been clustered close together.
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Identify which organisms can be infected by viruses. Choose one or more: A. Protists B. Bacteria C. Animals D. Plants E. Fungi F
svlad2 [7]

Answer:A. Protists B. Bacteria C. Animals D. Plants E. Fungi F. Archaea

Explanation:viruses are small non-living particles that contains hereditary materials.viruses attack cells of other organisms such as plants , bacteria ,archaea etc.

Viruses are acellular and contains either DNA or RNA.they cannot synthesis protein as they lack ribosomes ,so they use the ribosomes of the cell they have invaded to synthesize they proteins they need.

A virus usually has a central core surrounded by an outer protein coat called capsid.

Viruses can reproduce only within the living host cells and they are specific to the type of cells they attack.they attack plants through insect vectors or through openings on the plants.

Viruses can affect bacteria by injecting their nucleic acids through the cell wall and into the bacteria cell.such viruses are called bacteriophages.

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3 years ago
A forest was cleared and turned into a field of organic soybean plants. Which of the following most likely occurred?
Olenka [21]

Answer:

B

Explanation:

7 0
2 years ago
Hesi- the nurse is caring for a dying client. which interventions should the nurse implement for the client and family?
Llana [10]
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3 years ago
examine the diagram below, explain the path a newly formed polypeptide leaving a ribosome may take as it is modified or packaged
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After translation of the polypeptide in the ribosome, the polypeptide enters the cisternae of the rough endoplasmic reticulum. Here, the folding of the polypeptide begins with the aid of chaperons proteins. At the end of the RER, vesicles with the completely folded protein bud off and enters the Golgi apparatus where the proteins are transported to its destination.






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Individuals in a species have genetic variation that can be passed on to their offspring
grandymaker [24]

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Explanation:

8 0
2 years ago
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