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Neporo4naja [7]
2 years ago
8

Which observational tool helped astronomers Arno Penzias and Robert Wilson discover the existence of the cosmic microwave backgr

ound (CMB)?
A.
optical telescope
B.
radio telescope
C.
a digital camera
D.
space telescope
Biology
1 answer:
Zanzabum2 years ago
6 0
Holmdel Horn Antenna

Answer. In 1964, while experimenting with the Holmdel Horn Antenna, which was used as a radio telescope, Penzias and Wilson accidentally discovered the microwave background radiation that exists universally. The Holmdel Horn Antenna was used to support the "Big Bang Theory" as opposed to the "Steady State Theory".
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tankabanditka [31]

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<h3>What is life span? </h3>

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<h3>What is death? </h3>

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2 years ago
17. When transcription occurs in eukaryotic cells, a DNA strand is copied to an mRNA strand that contains introns and exons. Whi
scoundrel [369]

Answer:

Exons because they are coding sequences

Explanation:

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2 years ago
2) Why should you perform plyometrics?
Slav-nsk [51]

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6 0
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Darwin called the ability of an organism to survive and reproduce in its enviorment
lana66690 [7]
Darwin called the ability of an organism to survive and reproduce in its environment fitness.
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8 0
2 years ago
Read 2 more answers
PLS HELP!! brainliest + extra points! it's easy but i didn't study tbh:)
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Answer:

Guanine to Cytosine

Explanation:

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A always matches T

Hope it helps

Plz mark Brainiest.

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