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Phoenix [80]
3 years ago
11

Which phrase best defines a galaxy? Tightly packed group of older stars large grouping of more than two stars loose, disorganize

d star cluster held together by gravity large collection of stars, gas, and dust held together by gravity
Biology
2 answers:
Ganezh [65]3 years ago
8 0

Galaxy is a collection of millions or even billions of stars, gas, and dust held together by force of gravity, so the answer is: ´´a large collection of stars, gas, and dust held together by gravity´´.

OLEGan [10]3 years ago
6 0

<u>Answer</u>: Large collection of stars, gas, and dust held together by gravity.

<u>Explanation:</u>

  • The name <em>galaxy</em> has been derived from the word <em>galaxies</em> which is a Greek word meaning milky.
  • In simple words a galaxy is a collection of a large number of stars, however, to be more precise <em>a galaxy is a gravity-bound collection of stars, dust, gas, dark matter and stellar remnants. </em>
  • There are different types of galaxies found in various shapes and size, some of the most common shapes being elliptical, irregular and spiral.
  • An example is the milky way galaxy that contains our solar system.

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4 0
3 years ago
Which of the following medial temporal lobe structures is important for declarative memory consolidation? Choose the correct opt
Snowcat [4.5K]

Answer:

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4 years ago
Choose all of the ways that cellular respiration is different from photosynthesis. Select the 4 correct answers. *
shepuryov [24]

Answer:

It uses glucose as a reactant.

It uses oxygen as a reactant.

It makes ATP.

It happens in the mitochondria.

Explanation:

It occurs in cells.  - this is false. Both cellular respiration and photosynthesis occur in cells.

It uses glucose as a reactant.  - this is true. Cellular respiration uses glucose as a reactant, it is broken down to release energy. Photosynthesis produces glucose.

It uses oxygen as a reactant.  - this is true. Cellular respiration uses oxygen as a reactant. In contrast, photosynthesis releases oxygen as a byproduct

It makes ATP. - this is true. Cellular respiration makes ATP. Photosynthesis uses energy to produce the sugar which is used in cellular respiration to synthesise ATP.

It happens in the chloroplasts.  - this is false. Photosynthesis occurs in the chloroplasts, not cellular respiration

It happens in the mitochondria.  - this is true. Respiration occurs in the mitochondria, whereas photosynthesis occurs in the chloroplasts.

It involves oxygen, glucose, carbon dioxide, and water. - this is false, Both photosynthesis and cellular respiration involve oxygen, glucose, carbon dioxide, and water. Photosynthesis produces oxygen and glucose using carbon dioxide and water. Respiration produces glucose and carbon dioxide using water and carbon dioxide.

6 0
3 years ago
What's dichromacy?????
alexgriva [62]

Answer:

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2 years ago
The strongest plant cells are?
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<span>Sclerenchyma cells are the strongest. They have a second cell wallwhich is hardened by lignin, making them very tough and durable.</span>
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4 years ago
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