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nadya68 [22]
2 years ago
10

An enormous cloud of gas and dust that contracts due to gravity and forms stars is a

Biology
2 answers:
Free_Kalibri [48]2 years ago
8 0

the answer is A. nebula


B. makes no sense. A galaxy is a large grouping of solar systems.

C. Constellation. is wrong. a constellation is a pattern of stars that are visible from the surface of the Earth.

D. meteoroid. is also wrong. Meteoroids are large, pieces of rock that are floating in space that have no life, and contain numerous minerals.

ale4655 [162]2 years ago
5 0

An enormous cloud of gas and dust that contracts due to gravity and forms stars is called a nebula.


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What is synthesized from the DNA template? This is used to assemble ______ into ______.
Vladimir79 [104]
Answer:
            The right option for blanks is mRNA, amino acids and polypeptide chain (protein).

Reason:
             During protein synthesis first of all mRNA formation occurs from DNA template. Then mRNA come out from nucleus into cytoplasm and bind with ribosome, where tRNA come and binds to mRNA codon with the help of anticodons. and add amino acids. In this way a chain of polypeptide is formed.
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3 years ago
Cells that can differentiate into any cell type in an organism are referred to as ______ cells.
yanalaym [24]
Organism are referred to as Pluripotent cells
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2 years ago
A researcher discovers a new prokaryote that lives on the seafloor near hydrothermal vents. This organism reduces CO2 to form C6
expeople1 [14]

Answer:

D. Chemoautotrophs

Explanation:

Autotrophs in plain are organisms that synthesize their own food while hetrotrophs are organisms that do not synthesize their own food.

Chemotrophs (Chemoautotrophs and Chemohetrotrophs) are a group of organisms that obtain their energy through the oxidation of inorganic molecules, These organisms require carbon to survive and reproduce.

Chemoautotrophs are able to produce inorganic molecules by the fixation of CO2 from their immediate environment. The energy required for this process is got from Nitrogen, Magnesium, Sulphur etc.

Chemohetrotrophs are a class of chemotrophs that are unable to synthesize their own food but rather ingest complex molecules like carbohydrates from the environment.

Phototrophs are a group of organisms unlike chemotrophs that depend on the source of light or sunlight for synthesizing its food or organic molecules.

Photoautotrophs are basically photosynthetic plants which are able to carry out photosynthesis ie the conversion of CO2 and H2O to give Glucose and Oxygen in the presence of sunlight.

Photohetrotrophs are a class of organisms that do not synthesize their own food but rely on other organisms or already made organic molecules.

5 0
3 years ago
An organism that is unable to produce its own food so it must consume other organisms from energy
borishaifa [10]

Answer:

Let me know if this is right g. Heterotroph

Explanation:

Heterotroph are consumers an organism that gets energy by eating other organisms. All animals are consumers. They must take in food because they cannot make their own.

4 0
3 years ago
Which scientists are credited for the events described in the development of the cell theory?
Drupady [299]

Answer:

The answer to your question is...

Explanation:

Robert Hooke and Anton van Leeuwenhoek.

5 0
2 years ago
Read 2 more answers
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