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3 years ago

Volcanic eruptions can cause _____.

2 answers:

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When a volcanic eruption occurs, magma and other materials such as gases, ashes and pieces of rocks are released to the planet's surface. Magma is formed by minerals and rocks melted at high temperatures from the interior of the earth. When it is released on the Earth's surface through an eruption, it turns into lava, which once solid turns into magmatic rocks. What will determine the shape of the volcanic relief is the ownership of the lava and the manner in which the volcanic eruption occurred.

Natali [406]3 years ago

3 0

Volcanic eruptions cause magma to rise through cracks or weaknesses in the Earth's crust and when the pressure is released magma explodes causing a volcanic explosion. Hope this helps! :)

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When enzymes are elongating (building) a newly synthesized dna strand in pcr, new nucleotides are being added to the ____ of the

Tamiku [17]

The correct answer is c. 3 ' hydroxyl of deoxyribose.
<span>
During the DNA synthesis via PCR, polymerization occurs in 5’-3’ direction. This means that enzyme DNA polymerase which synthesizes a new DNA strand is complementary to the DNA template strand (3’-<span>5’ direction). 5’ phosphate group of the free nucleotides which are added is attached to the 3'-hydroxyl group at the end of the elongating DNA strand.</span></span>

3 0

3 years ago

Read 2 more answers

"which list contains only vitamins that do not function as coenzymes in energy metabolism?"

galben [10]

The right answer is: vitamin C and choline
Choline (vitamin B4) is the precursor on the one hand acetylcholine (important neurotransmitter and neuromodulator) and on the other hand, the cascade initiated by betaine (intermediate in the biological methylation and precursor of membrane lipids). In this, it is considered, by extension, as an integral part of the family of B vitamins,
Vitamin C protects against cellular aging, is essential for the immune defenses and increases the assimilation of iron of plant origin. It also contributes to the formation of collagen. Its deficiency leads to a disease called scurvy (hence the ascorbic acid name of vitamin C).

7 0

3 years ago

WILL GET BRAINLIEST!!!

ICE Princess25 [194]

Answer:

<em>1. The characteristic thing about </em><em>adult frog breathing</em><em> is that </em><em>drawing in air by lowering their mouth floor</em><em> (option d).</em>

<em>2. The substance released by the </em><em>lung secretory cells </em><em>is the </em><em>surfactant </em><em>(option c).</em>

<em>3. The main divisions of the </em><em>peripheral nervous system</em><em> are the </em><em>somatic and autonomic systems</em><em>.</em>

Explanation:

<h3>1. Breathing of the adult frog</h3>

The adult frog - while out of the water - uses a nasal breath, propelling air into its throat and oral cavity. The air content in the frog's mouth causes the internal pressure of the cavity to increase, and the floor of the mouth is modified to allow the passage of air to the lungs.

Under water, the frog's breath is cutaneous, that is, through its skin.

Adult frogs do not have gills or respiratory muscles.

<h3 /><h3>2. Pulmonary surfactant </h3>

Pulmonary surfactant is a substance produced and secreted by the pulmonary epithelium, specifically by type II pneumonocytes. The function of the surfactant is to keep the pulmonary alveoli open to allow gas exchange.

The surfactant is a substance of a lipidic and proteic nature that helps reduce the surface tension of the water, which in the socket prevents closure when the air is exhaled.

Another function is to prevent the germs - viruses and bacteria - present in the air from passing from the alveolus to the bloodstream.

<h3 /><h3>3. Divisions of the peripheral nervous system</h3>

The peripheral nervous system is dependent on the central nervous system and is made up of all the nerves that go to each of the tissues and organs of the body. It is divided into somatic and autonomic nervous systems.

<u>Somatic nervous system</u> is composed of nerves that drive nerve impulses to skeletal muscles, being predominantly voluntary. The involuntary response in this system is due to the existence of reflex arcs, whose center of integration is the spinal cord.
<u>Autonomic nervous system</u> is responsible for the innervation of coughs the internal organs, allowing their function under the coordination of the central nervous system. It is an involuntary system and is subdivided into sympathetic and parasympathetic systems.

The integration of both systems, somatic and autonomic, allows a body to perform all its functions, including the function of relationship, alertness and maintenance of organic homeostasis.

Learn more:

Frog breath brainly.com/question/1341903

Pulmonary surfactant brainly.com/question/7303958

Central and peripheral nervous systems brainly.com/question/2156614

5 0

3 years ago

Scientists now use domain Eukarya to group together the kingdoms of eukaryotic species, which include plants, animals, protists,

sergeinik [125]

Answer: Option A

Explanation:

Scientist used the domain Eukarya which comprises the togetherness of all the eukaryotic species. They have been put together because all of the eukaryotic species have their recent common ancestor as eukaryotes.

The first eukaryotic cells, which had nucleus originated 2 billion years ago which had organelles. They explain the endosymbiotic theory.Most of the eukaryotic species that have been evolved from this.

Eukaryotic species have been evolved from another eukaryotic species and share some similar characteristics.

7 0

3 years ago

Help a man out! 50 points will be given to the one who solves all the answers- or at least more than 3! And given brainliest!

tamaranim1 [39]

I cant see the pictures right take another picture and maybe i will be able to help you

5 0

3 years ago