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Murljashka [212]
3 years ago
13

What was Earth's early atmosphere made of?

Biology
2 answers:
Inessa05 [86]3 years ago
7 0

the answer is carbon dioxide

frosja888 [35]3 years ago
5 0
The answer is carbon dioxide is in the air
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Which of these describes a quantitative observation?
Sergio [31]

Answer: <u><em>D. An observation that has a number associated with it</em></u>

Explanation: The answer is D. An observation that has a number associated with it. I would explain further, but it is pretty self explanatory.

<em>Good luck!</em>

3 0
4 years ago
Which characteristic of water allows its molecules to form hydrogen bonds?
a_sh-v [17]

Answer:

b. The water molecule is polar.

Explanation:

Water molecules forming hydrogen bonds with one another. The partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules. Water molecules are also attracted to other polar molecules and to ions.

5 0
3 years ago
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What part of the root contains transport tubes?
lana66690 [7]

Miss Philadelphia. The part of the root that contains transport tubes is the root hair. The primary role of the root hair is to absorb water and nutrients from the soil.

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4 years ago
An experiment was designed to test whether students could squeeze a clothespin more times in one minute after resting or after e
Rudik [331]

If a student rests and then squeezes a clothespin for one minute, will they be able to squeeze it more than someone that exercised before squeezing the pin for 1 minute?


Hope this helps!

7 0
3 years ago
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Imagine that you discover three different bacterial species on a meteorite. Each species contains genetic material that is not D
jeka94

Answer:

Species A: 2

Species B: 56

Species C: 162

Explanation:

Codons are sequence of 3 purine or pyrimidine bases that codes for amino acids. Each codon in mRNA eventually binds with anticodon in tRNA during protein synthesis and gets translated into their respective amino acids. Hence, the number of amino acids in each of the species represents the minimum number of codons in each species.

<em>Therefore, species A with 2 amino acids will have a minimum codon length of 2, species B with 56 amino acids will have minimum of 56 codons while species C with 162 amino acids will have minimum codon length of 162.</em>

3 0
3 years ago
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