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neonofarm [45]
2 years ago
15

2. How has scientific understanding about the composition of the universe changed over time? Select the two correct answers.

Biology
1 answer:
mart [117]2 years ago
6 0

Answer: The percentage of unknown material has grown in scientists estimates since the 1970’s; the percentage of dark matter has shrunk in scientists estimates since the 1980s

Explanation:

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Explain how a genetic map (in map units) is related to actual physical distance (in base pairs of DNA).
antiseptic1488 [7]

Explanation:

A map unit [or centimorgan (cM)] is a unit for measuring genetic linkage. It is defined as the distance between chromosome positions for which the expected average number of intervening chromosomal crossovers in a single generation is 0.01. <em>Its relation with actual physical distances is inconsistent </em>because the number of base pairs to which it corresponds varies widely across the genome, it also depends on whether the meiosis in which the crossing-over takes place is a part of male or female genes (female genome is 4782 cM long, while the male genome is only 2809 cM long).

I hope you find this information useful. Good luck!

6 0
3 years ago
Examples of patterns in nature​
Archy [21]

Answer:

Natural patterns include symmetries, trees, spirals, meanders, waves, foams, tessellations, cracks and stripes. Early Greek philosophers studied pattern, with Plato, Pythagoras and Empedocles attempting to explain order in nature.

Explanation:

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5 0
3 years ago
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Compare the Early Earth's Atmosphere to today's Atmosphere. What change in the atmospheric conditions impacted life on earth the
juin [17]

Answer:

For early earth, it was filled with loads of oxygen and could kill humans if they breathed the oxygen that was in the air about 100 million years ago. This massive amount of oxygen cause massive creatures like the dinosaurs to exist. Current earth has an atmosphere with not too much oxygen.

Explanation:

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5 0
1 year ago
Is it okay if a scientific experiment disapproves a hypothesis
pochemuha
Yes, it is okay. you should never change your hypothesis if it was wrong.
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3 years ago
Trey stands on one side of a filing cabinet and pushes with a force of 30 N. If Mary wants
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Balanced forces are forces that are equal in force but opposite sides. Mary would need to push on the opposite side of Trey with the same force of 30N. (I provided a photo to visualize)

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