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cluponka [151]
3 years ago
15

How do astronomers find exoplanets?

Biology
1 answer:
gayaneshka [121]3 years ago
4 0

Answer:

They measure the shift in a star's emission spectrum.

Explanation:

Exoplanets are planets found outside the solar system.

Planets orbiting far enough from stars to be resolved reflect very little starlight, so planets are detected through their thermal emission instead. These thermal emission is gotten by observing the shift in the stars emission spectrum.

Coronagraphs are also used to block light from the star which results to leaving the planet visible. Direct imaging of an Earth-like exoplanet requires extreme use of optothermal stability.

They can also be found by using space based telescopes.

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Which organism might be at the top of the food chain in a deciduous forest?
Debora [2.8K]

Hey there,

The correct answer would be: An eagle

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7 0
3 years ago
12) How do harvesting wood and surface mining for coal affect ecosystems?
Tems11 [23]

Answer:

no

Explanation:

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6 0
3 years ago
A pea plant homozygous for the trait of smooth seeds is crossed with a pea plant that is homozygous for the trait of wrinkled se
Fed [463]

Answer:

100%

Explanation:

A pea plant homozygous for the trait of smooth seeds;

let that be = ss

A pea plant that is homozygous for the trait of wrinkled seeds;

let that be  = ww

if ss crosses with ww; the F1 produces seeds that are all smooth

i.e ss × ww = (sw, sw, sw, sw)

From the  question, we are to find the percentage of the second generation that will produce smooth seeds after self fertilization occurs.

i.e  sw, sw, sw, sw  ×   sw, sw, sw, sw

= the result will yield ssww for all F2 progeny

∴ the percentage of plants that will have smooth seeds when the F1 generation is self-fertiized is 100%

8 0
4 years ago
Define and explain the difference between dependent and independent variables
Gemiola [76]
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if y=1 x=4
if y=2 x=5

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7 0
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How do you think an insect Fitness with affect is chances of being eaten by birds
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Good question!

An insect's fitness can effect it's chances of being eaten by birds is their ability to escape once the predator (the bird) encounters the prey (the insect).

8 0
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