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lord [1]
3 years ago
13

Index fossils allow us to age rock layers. true false

Biology
1 answer:
Romashka-Z-Leto [24]3 years ago
8 0
It's going to be true 
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Water molecules sticking to a mirror’s surface is an example of ?
Ludmilka [50]

Answer

       Water molecules sticking to a mirror’s surface is an example of adhesion.

Explanation

      Adhesion is the property of attractive force that exist between two different molecules. water molecules adhere to  other surfaces due to their polar nature.

Importance

                   it is because of adhesive forces that water can travel and cover a distance of 100 meter up in the plants through xylem vessels as recorded in the world tallest tree (red wood tree)

8 0
3 years ago
Adenine is the last nucleotide at the 3' end of one strand of DNA. It is base-paired with thymine on the other DNA strand. Which
Jlenok [28]

Answer:

The two nucleotides are located on DNA strands that are parallel to each other

Explanation:

Deoxyribonucleic acid, commonly known as DNA, is one of the two types of nucleic acids. It is a molecule composed of a nitrogenous base, pentose sugar and a phosphate group. According to the information given in this question, Adenine is the last nucleotide at the 3' end of one strand of DNA. The following are factual about the nucleotide;

- Since DNA is a double-stranded molecule, the Adenine nucleotide will be base-paired with Thymine nucleotide (complementary base pairing) on the other DNA strand.

- Since complementary DNA strands are opposite to one another, this means that if the adenine has an unlinked 3' hydroxyl group, then the thymine must have an unlinked 5' phosphate group.

- Nucleotides in a DNA strand are joined to one another via a covalent bond called PHOSPHODIESTER BOND. Hence, the adenine and the thymine are each bonded to the previous nucleotide in the strand by a phosphodiester bond.

- In the complementary base pairing between two nucleotide bases, there are two hydrogen bonds between the adenine and thymine nitrogenous bases i.e. A=T.

- DNA strands that make up a molecule are complementary and opposite to one another, hence, they are said to be ANTIPARALLEL.

7 0
3 years ago
When elements that form a mineral dissolve in hot water, they form a mixture called a(n) ______
ryzh [129]

Answer:

I believe it's G. Solution

Explanation:

Hope my answer has helped you!

3 0
3 years ago
Read 2 more answers
In which direction does carbon dioxide move during internal respiration?
Anit [1.1K]
Carbon dioxide moves out of the tissues (cells) into the bloodstream to be exhaled in internal respiration.
3 0
4 years ago
Which of these minerals is a non-metal? A. Aluminum b. Chromium c. Gypsum d. Nickel
Yuri [45]
Im 99% sure its gypsum
5 0
3 years ago
Read 2 more answers
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