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Elenna [48]
3 years ago
10

During embryonic development, the vertebral column is replaced by the notochord.

Biology
1 answer:
Reptile [31]3 years ago
3 0

Hello! The answer is false.

It is actually the opposite. The notochord is a primitive axial skeleton, and in humans, it disappears. It eventually becomes part of the vertebral column, which is the backbone that we have today.

Hope this helps!

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4 0
3 years ago
What direction is the wind coming from if the tail is going south west?
Fynjy0 [20]

Answer:

In scientific and worldwide usage, wind direction is always stated as the direction from which the wind blows. For example, a south wind blows from the south to the north and a southwest wind blows from southwest to northeast. The National Weather Service and all U.S. media adhere to the international convention.

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5 0
3 years ago
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Changing the magnitude and direction of forces generated by skeletal muscles is an illustration of the skeletal function of ____
melomori [17]

Answer:

The correct answer is - leverage.

Explanation:

Skeletal muscles involves leverage which is the ability to move an object with the help of the lever,. In human body leverage is work as the joints are fulcrums, and the bones act as levers.

Muscle contraction provides the effort that is applied at the point of the origin in the bone. Changing the magnitude and direction of forces created by the skeletal muscles is an representation of the skeletal function of leverage.

Thus, the correct answer is - leverage.

4 0
3 years ago
"DNA replication does not happen without some help. Which other molecules or types of molecules are needed for DNA replication t
myrzilka [38]

Answer:

Enzymes like DNA polymerase III, HELICASE, Primase, Topoisomerase, ligase.

Explanation:

DNA replication is an important process that must occur prior to cell division. DNA content of a cell becomes duplicated in the process. This process, however, cannot occur without some vital elements that play specific roles. These elements are mostly enzymes which includes DNA polymerase III, HELICASE, Primase, Topoisomerase, ligase.

DNA POLYMERASE III is the main enzyme in this process, it adds nucleotides that are complementary to the unwinded DNA strand in order to synthesize its replica.

However, a new complementary DNA strand cannot be synthesized if the original double-stranded DNA does not unwind or separate. This process of unzipping the DNA into a Y-shaped replication fork is done by HELICASE.

DNA polymerase III starts adding nucleotides from the 3' end of the DNA strand. In order to recognize this end on the strand about to be synthesized, PRIMASE synthesizes a short strand of nucleic acid called Primer. This primer provides the DNA polymerase with something to start working on.

TOPOISOMERASE works on the double-stranded DNA prior to formation of replication fork by helicase. It helps prevent the DNA strands from becoming too tight and super coiled in order to make unzipping easy.

LIGASE helps to fill up those gaps in the DNA fragments during the synthesis of a complementary strand.

8 0
4 years ago
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irga5000 [103]

Answer:

Hydrochloric acid contributes to protein digestion by supplying H+ which activates pepsinogen, the precursor to pepsin. Pepsinogen is secreted by chief cells in the gastric glands of the body and antrum of the stomach.

Explanation:

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