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2 years ago

B. Layers of rock are moved by forces beneath Earth's surface.

1 answer:

6 0

Answer:hey reasoned that all rocks that were laid down in layers in large part were laid down under or by water or action by a fluid. They later discovered that both water and wind laid down the materials that later became lithified to become rocks.When these rocks were deposited as sediments, this area was most likely (1) under the ocean (2) a desert between high mountains (3) repeatedly covered by lava flows (4) glaciated several times Both organisms that formed the fossils found in rock layers 3 and 4 (1) lived during the same period of geologic time (2) lived in polar regions

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The nucleoside analogue acyclovir, which is used to treat herpes simplex virus (HSV) infections, lacks a 3′ hydroxyl group (–OH)

Dima020 [189]

Answer:

There won't be any functional viral DNA synthesis

Explanation:

First of all, you must consider that the HSV has a double-stranded, linear DNA genome. Furthermore, the DNA skeleton is made of the 5'-3' phosphodiester bond. In other words, the 5-phosphat of a nucleotide will bond the 3' OH of the Deoxyribose (see image).

Therefore, if you add a molecule which lacks the 3' OH, such as acyclovir, and has a similar chemical structure to a regular nucleotide, the DNA polimerase will be able to add acyclovir to the main backbone of the viral genome. All in all, you'd be ''cheating'' the DNA pol.

Hence, wherever acyclovir was integrated, there won't be any chance to form a 5'-3' phosphodiester bond. The protomolecule will not be stable and will soon be degradated.

6 0

4 years ago

At the lowest biological level, groups of cells that have a similar structure and function work together as

tresset_1 [31]

Answer:

TISSUES

Explanation:

Each cell type has a special feature that enables it to perform a particular function efficiently. These cells are said to be specialized to perform specific functions. Groups of specialized cells are assembled together to form a tissue. Examples are muscle, skeletal and nervous tissues in animals as well as phloem, epidermis and xylem tissues in plants.

7 0

3 years ago

Naturally occurring solid mixture of one or more minerals and organic matter

alina1380 [7]

The naturally occurring solid mixture of one or more minerals and organic matter is known as a Rock.

A rock is a naturally occurring substances that is a solid mixture of one or more minerals together with organic matter.

<h2>Further Explanation;</h2>

Rocks are classified based on the chemical composition, texture and the way they are formed. One type of rock may change from one form to another through a rock cycle.
Rock cycle is the process through each various rocks change from one form to another, normally an interchange between the three major types of rocks.

There are three major classification of rocks:

<h3>Sedimentary rocks </h3>

Sedimentary rocks are types of rocks that are formed through accumulation of sediments at low temperatures in tectonic layers and sinks. These sediments includes; pebbles, shells, sand and other material fragments.
The sediments accumulates in layers and then harden into rocks over a period of time.
Examples of sedimentary rocks include; limestone and conglomerate

<h3>Metamorphic rocks</h3>

These are types of rocks that are formed as a result of changes that occurs due to intense heat and pressure under the surface of the earth. They result from action of heat and pressure on other rocks that pre-existed.
These types of rocks are characterized by shiny crystals, ribbon-like layers among other features.
Examples of metamorphic rocks are marble and gneiss

<h3>Igneous rocks </h3>

These are types of rocks that are formed as a result hardening and cooling of magma from volcanic eruptions. Magma may cool inside the earth or when on the surface of the earth as a result of volcanic eruptions. The lava from this eruptions cools and hardens to form metamorphic rocks.
Igneous rocks are glass-like and shiny with no crystals. They may also have tiny spaces and holes due to gas bubbles trapped during the cooling process.
Examples of igneous rocks include obsidian and basalt.
The three types of rocks may be further classified in terms of chemical composition, texture and formation.

Key words: Rocks, types of rocks, chemical composition

<h3>Learn more about;</h3>

Rocks and rock types; https://brainly.in/question/5987245
sedimentary rocks; https://brainly.in/question/3259075
igneous rocks; https://brainly.in/question/272012
metamorphic rocks; https://brainly.in/question/1206219

Level; High school

Subject: Geography

Topic: Rocks

sub-topic: classification of rocks

4 0

3 years ago

Someone help me? look at the image look at the image look at the image look at the image

grin007 [14]

Isolated on its own, bloodplasma is a light yellow liquid, similar to the color of straw. Along with water,plasma carries salts and enzymes. The primary purpose of plasma is to transport nutrients, hormones, and proteins to the parts of the body that need it.

Hemoglobin is the protein inside red blood cells that carries oxygen. Red blood cells also remove carbon dioxide from your body, transporting it to the lungs for you to exhale. Red blood cells are made inside your bones, in the bone marrow. They typically live for about 120 days, and then they die.

White blood cell. ... White blood cells(also called leukocytes or leucocytes and abbreviated as WBCs) are thecells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders.

Platelets are tiny blood cells that help your body form clots to stop bleeding. If one of your blood vessels gets damaged, it sends out signals that arepicked up by platelets. The plateletsthen rush to the site of damage and form a plug, or clot, to repair the damage.

5 0

3 years ago

Read 2 more answers

In the six kingdom classification system bacteria are divided into two kingdoms

Pavel [41]

<span>In the six kingdom classification system bacteria are divided into two kingdoms which are known as Archaebacteria and Eubacteria. The archaebacteria are organisms that can dwell in hostile environments like deep sea vents, hot springs, and salt water; while Eubacteria include organisms that can be harmful to humans because they cause certain kinds of diseases like step-throat and botulism.</span>

5 0

3 years ago