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inna [77]
3 years ago
10

Which of the following is true about glassy igneous rocks?

Biology
1 answer:
Evgesh-ka [11]3 years ago
6 0
Glassy igneous rocks (i.e. obsidian) are cooled very rapidly.
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Long polymers are made from single subunits in cells using a ___________ reaction, which ___________ water.
Lera25 [3.4K]

Answer:

a) Dehydration

b) water (H2O)

Explanation:

Polymers are large complex substances that arise from the joining of smaller simpler units called Monomers. A monomer is joined together by a covalent bond, to form a polymer molecule. However, this process usually accompanies the loss of a water molecule due to the hydrogen (H+) and hydroxyll (OH-) ions that is contributed by each monomer unit. Hence, this process is called a DEHYDRATION REACTION.

For example, glucose moleculea as monomer units combine together in a dehydration reaction to form larger polymers such as starch, glucose etc.

5 0
3 years ago
The Moon is much smaller than the Sun, but the moon has greater effect on the tides.
pshichka [43]

Answer:

B

Explanation:

the tides are controlled by the moons gravitational pull because it is closer though the sun is bigger it is also the middle of our system and farther away from our planet

5 0
3 years ago
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Arrange the events of the earliest stellar formation in sequential order.
notka56 [123]

Answer;

Arrangement of events in stellar formation;

C) The Big Bang occurs.

B) Pockets of elements in higher concentrations begin experiencing greater gravitational force.

A) Hydrogen atoms shed their electrons and fuse together to form larger helium atoms.

D) the glass clouds begin reducing in volume, which leads to increase in density, pressure, and temperature.

Explanation;

-Stellar evolution is the process by which a star changes over the course of time. All stars are born from collapsing clouds of gas and dust, often called nebulae or molecular clouds.

-Stars are born out of the gravitational collapse of cool, dense molecular clouds. As the cloud collapses, it fragments into smaller regions, which themselves contract to form stellar cores.

4 0
3 years ago
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Write a short informational paragraph explaining the role that DNA has in creating protein in your body.
jasenka [17]
DNA is found in the nucleus of a cell. Depending on the type of cell, different parts of the DNA are used (example; if it's an eye cell, the DNA will use the segment that is dedicated to the functions of the eye). When a protein is needed, the DNA will split and in a process called transcription, the DNA messages are copied onto mRNA. The mRNA then leaves the nucleus through nuclear pores, and then travels through the cytoplasm to locate ribosomes which will produce the proteins needed to express whatever trait it codes for. 
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3 years ago
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Nucleic acidis include
irinina [24]

Answer: Deoxyribonucleic acid (DNA)

Ribonucleic acid (RNA

Explanation:

Nucleic acids are simply referred to as the macromolecules which aids in the storage of genetic information. It should also be noted that nucleic acids enable the production of protein.

Nucleic acids include the Deoxyribonucleic acid (DNA) and also the Ribonucleic acid (RNA).

6 0
3 years ago
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