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padilas [110]
3 years ago
8

Which force primarily acts on a natural or artificial satellite to keep it in orbit around a planet

Biology
1 answer:
rjkz [21]3 years ago
5 0

Answer:

Gravity

Explanation:

When its altitude is matched by the pull of the Earth's gravity, a satellite circles Earth. The satellite will fly off into orbit in a straight line or crash down to Earth without this equilibrium.

By juggling two things, a satellite retains its orbit: its velocity (the speed it takes to travel along a straight line) and the gravitational force on it that the Planet provides. To resist the greater gravitational force, a spacecraft orbiting closer to the Earth needs more velocity.

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Unconformities occur when:
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Would would be the possible gamete combinations?
Likurg_2 [28]

Answer:

1/4 WR; 1/4 wr; 1/4 wR; 1/4 Wr

Explanation:

The principle of independent assortment indicates how different genes independently separate from one another when gametic (reproductive) cells develop. When a cell divides by meiosis, homologous chromosomes are randomly distributed to daughter cells, thereby different chromosomes segregate independently of each other. In consequence, each gamete has a unique combination of chromosomes. In this case, the two genes are on different homologous chromosomes, thereby gene variants (alleles) will be randomly distributed to daughter cells during meiosis (anaphase I) and thus the expected proportion of gamete genotypes will be 1/4 WR, 1/4 wr, 1/4 wR, 1/4 Wr.

7 0
2 years ago
Why do biologists measure the number of trophic levels in an ecosystem?
slega [8]

Answer:

Biologists measure the number of trophic levels in an ecosystem so as to check its stability and health.

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Theoretically there is no any limit to the number of trophic levels in a food chain or number of organisms that live on each level.

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