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bulgar [2K]
3 years ago
13

Why do scientists study index fossils?

Biology
1 answer:
aalyn [17]3 years ago
5 0
Scientist study index fossils so they will get an understanding of what life was like back then.
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A change in the order of DNA bases that code for a respiratory protein will most likely cause: ________
Alecsey [184]

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2 years ago
A contraceptive that permanently prevents transport of the sperm or egg to the site of conception is a
scZoUnD [109]
The answer is Surgical Contraceptive Methods e.g. Vasectomy(For males) and  Tubectomy(Females)<span>.

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4 0
3 years ago
Why is O₂ NOT considered a compound?
Airida [17]

Answer:

The oxygen molecule O2 is considered a molecule but not a compound. This is because O2 is made of two atoms...

3 0
2 years ago
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In the diagram, how many angles are alternate exterior angles with angle 5?
strojnjashka [21]

Answer:

One.

Explanation:

The attached figure shows the diagram of the given question.

We need to find how many angles are alternate exterior angles with angle 5?

Exterior angle = Angle that is made outside of the shape

Alternate angle = an angle opposite of a transversal line of another angle.

From the figure, 8, 7, 9, 10, 12, and 11 are the angles that are on the same transversal. 8, 7, 9, 10, and 12 are just exterior. It means that 11 is the alternate exterior of angle 5. So, only one angle is alternate exterior angles with angle 5.

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3 years ago
Name the three types of RNA &amp; list their roles in making proteins
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<span>tRNA - Transfer RNA: Brings amino acids to ribosomes during translation.
rRNA - Ribosomal RNA: With ribosomal proteins, makes up the ribosomes, the organelles that translate the mRNA.
<span>snRNA - Small nuclear RNA: With proteins, forms complexes that are used in RNA processing in Eukaryotas. (Not found in prokaryotes.)</span></span>
8 0
3 years ago
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