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Irina18 [472]
3 years ago
14

Which statement correctly describes other ways in which nebulae and stars are different? A. A star always has a higher density t

han a nebula. B. Stars can form inside a nebula but a nebula can never be produced by any star. C. Stars can never form inside a nebula but a nebula can be produced by any star. D. A nebula always has a higher density than a star. Reset Submit
Biology
1 answer:
wel3 years ago
3 0

The answer is; A

Nebulae are clouds of dust and gas in space. When local areas in nebulae start to collapse under their own weight and fusion begins, a star is born. This, therefore, means that a star is denser than nebulae because it requires that atoms fuse for it to form. Fusion creates heavier atoms from light atoms.


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PLEASE I DONT UNDERSTAND THIS!! qnq
denpristay [2]

Interesting biology question.

In order to answer this question, I hope you understand what is mitosis: cell division that creates two diploid "daughter" cells that are identical to each other. Gametes, remember, are the reproductive cells (egg cells and sperm).

If human gametes were made by mitosis, which is not true, because gametes are made in meiosis, they would simply be diploid with somatic cells. The two gametes would have 92 chromosomes, as each cell has 46 chromosomes. And after each generation, the number of chromosomes would keep doubling, which would be very weird. Remember that the normal amount of chromosomes that a human being has, is 46. Maybe humans would have mutations if that happened.

7 0
3 years ago
All microorganisms that regularly populate the human body are referred to as the ___________________..
olga2289 [7]

Answer:

Human microbiome

Explanation:

The microbiota that aggregates in the human tissues including placenta, skin, lungs, saliva, and seminal fluid is the human microbiome. The microbiota can be virus, bacteria, fungi and protists.

The microbiome present in the human gut helps in digestion and also provides immunity. Microbiomes can be healthy or unhealthy and an imbalance of both can lead to weight gain, high cholesterol and blood sugar. These are the ecological communities that includes symbiotic, commensal and pathogenic microorganisms.  

7 0
3 years ago
Owls and hawks both eat rodents.They are also found in the same habitats.Since no two populations can occupy exactly the same ni
Scorpion4ik [409]
<span>No. Because the hawk and owl hunt similar prey but occupy different ecological niches.</span>
5 0
3 years ago
The starting materials of a chemical reaction are shown
FromTheMoon [43]

The correct options is (D)

2AgCl + Ca(NO3)2

8 0
3 years ago
An experiment testing the hypothesis that nitrogen markers shoot farther than carbon dioxide markers resulted in conflicting tes
Natasha_Volkova [10]

Answer:

They should think of an alternative explanation for their results.

Explanation:

The next step that the scientists should take is to interpret why their hypothesis went wrong. The researchers should look for patterns in their observations and provide an alternative explanation for the results which occurred. Based on the results and their understandings, they should further make another hypothesis and check for its authenticity.

In scientific researches, the results of a hypothesis generally do not get the expected results but this leads to new findings and discoveries.

3 0
3 years ago
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