In chemical reactions, enzymes __ the chemical reaction by _the activation energy.A: speed up; lowering
B: raise the temperature of; increasing
C: is crossed out
D: gathering materials for; increasing

Answers

Answer 1

Answer:

The correct answer is option A

All the chemical reactions that takes place in the body of the organism occurs by the help of enzymes. These enzymes acts as the catalyst by increasing the rate of reaction. This increased rate of reaction is done by lowering the activation energy. The energy required to start the reaction is termed as the activation energy and the the enzymes functions by lowering this energy.

Answer 2

Answer: A. Enzymes speed up chemical reactions because the time needed to activate the reaction is lowered.

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The main difference between bacterial chromosomes and eukaryotic ones is that eukaryotes have linear chromosomes. How does the shape of the chromosome affect the way it is replicated?

Answers

Comparing to circular bacterial chromosomes, in Eukaryotas replication is unidirectional and there are more than one origins of replication.
Also in linear chromosome there are telomeres at the end of the chromosomes and there is specific process for their replications and in the
circular chromosomes, there are no telomeres.

Which statement best explains what happens during an earthquake? A. A huge ocean wave causes tectonic plates to shift underground.

B. A volcanic eruption causes tectonic plates to shift underground

C. Energy is stored as tectonic plates shift underground.

D. Energy is released as tectonic plates shift underground

Answers

The statement that best explains what happens during an earthquake is" Energy is released as tectonic plates shift underground". Option D. This is further explained below.

What is an earthquake?

Any abrupt quake of the ground, that is induced by the passage of seismic waves through the ground is referred to as an earthquake.

In conclusion, The phrase perfectly describes what happens during an earthquake: "Energy is released as tectonic plates shift underground."

Answers

The answer is letter a. Being subjected to immense heat and the experience of pressure due to being far below the Earth's surface can change igneous or sedimentary rocks to metamorphic rocks.

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The formation of metamorphic rocks takes place when either sedimentary or igneous rocks are subjected to immense pressure and heat.

Further Explanation:

Rocks are found on earth as metamorphic, sedimentary, and igneous. The name is based on how these rocks are formed. The shells, sand particles, and pebbles form the sedimentary rocks. These particles are called sediments and their accumulation into layers results in the formation of rocks as they gradually harden over time. The igneous rocks are formed as a result of cooling followed by hardening of magma under the Earth's surface. The metamorphic rocks are formed due to metamorphosis which takes place below the surface of the Earth as a result of application of heat and pressure.

The change of one rock type into another over a period of time is termed as metamorphosis or rock cycle. The increase in pressure and heat due to stress can change a solid rock into a new type of rock. The temperature increases because of the deeper buried layers of sediments below the Earth's surface. As the layers descend the temperature increases gradually for every proceeding kilometer. The temperature becomes even hotter as the layer turns deeper. As the weight of every subsequent layer increases, it also increases the pressure which in turn causes a further increase in temperature.

Metamorphism can occur in two ways:

1. The rocks come in contact with each other as the plates slide over one another producing a shearing effect. This causes the descending rocks to change.

2. The descending rocks might also melt due to friction. The melted is considered as the igneous rock but the rock adjacent to it might become a metamorphic rock due to the production of heat.

Learn More:

1. Learn more about prokaryotic and eukaryotic cells brainly.com/question/1579016

2. Learn more about eukaryotic cells brainly.com/question/4493579

3. Learn more about DNA and RNA brainly.com/question/334927

Answer Details:

Grade: Higher secondary

Subject: Biology

Chapter: The Rock Cycle

Keywords:

Rock cycle, types of rock, sedimentary rock, igneous rock, metamorphic rock, magma, Earth’s surface, metamorphosis.

Which artery can be found on either side of the neck

Answers

The Carotid Artery can be found on either side of the neck.

Bro tha Carotid Artery can be found on either side of the neck.

- This answer should help u out thou bro .

Name a difference between a plant cell and an animal cell.

Answers

Answer:

the cell wall, chloroplasts

Explanation:

plant cells have a cell wall, but animal cells do not

plant cells also have chloroplast, but animal cells don't

Which of the following are heterotrophic or autotrophic, how many cells does each one have, the presence or absence of cell organelles for example, nucleus, cell wall, chloroplast and vacuole and give two examples of organisms in each kingdom1. Monera
2. Protista
3. fungi
4. Plantae
5. Animalia