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marin [14]
3 years ago
9

What is a galaxy? A) all the billions of stars that exist in space B) a cluster of millions of stars in a definite pattern in sp

ace C) one or more planets orbiting around a star, similar to our Sun D) a cluster of stars, planets, gas, and dust all held together by gravity
Biology
1 answer:
emmainna [20.7K]3 years ago
3 0

Answer:

D) a cluster of stars, planets, gas, and dust all held together by gravity

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Earth's geochemical cycles remove and add materials, such as water and rock. The three main, interconnected geochemical cycles o
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A geochemical cycle is the pathway that involves the movement of elements or substances in the Earth's surface and the crust.  I believe the answer are hydrologic, heat, and rock. These are the three main geochemical cycles of the Earth and are responsible of continuously removing and adding materials here on Earth.
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Why are traditional sources of energy like coal harmful to the planet
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3 years ago
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Help me please!!
Masja [62]

Answer:

1. Both

2. Lamarck
3. Darwin
4. Darwin
5. Lamarck
6. Both
7. Both
8. Darwin
9. Lamarck
10. Both

Explanation:

in 1, we need time therefore both. In 2, Lamarck because in Darwinian evolution, species change not organisms. In 3, Darwin because of natural selection, mutation, and probably a little bit of heredity. 4 is Darwin because in Lamarckian evolution. 5 is Lamarck because based on natural selection, organisms should go extinct. 6 is both because they both rely on the environment. 7 is both because of heredity. 8 is Darwin because in Lamarckian evolution, traits acquired throughout ones lifetime can be passed down to offspring. 9 is Lamarck because in Darwinian evolution, organisms do not decide their traits. 10 is both because both idea ssupport the idea that organisms, be it in Lamarckian or Darwinian evolution, are still and will carry out on changing.

5 0
3 years ago
How does the nucleotide sequence determine the protein structure and function of a cell?
Montano1993 [528]

Answer:

The four bases A, T, C and G make up the genetic code. The base sequence determines amino acid sequence in protein. Messenger RNA (mRNA) is a molecule which carries a copy of the code from the DNA, in the nucleus, to a ribosome, where the protein is assembled from amino acids.

Explanation:

7 0
3 years ago
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