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3 years ago

Describe the difference between clastic and organic sedimentary rocks.

1 answer:

6 0

Clastic sedimentary rocks: The word clastic came from “clasts” which means grains. Mainly silicic rocks like sandstone, shale etc. fall under clastic rocks. Organic sedimentary rocks: Sedimentary rockswhich are formed due to biogenic activity/processes or form fromorganic matter are called organic sedimentary rocks.

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Please HELP I will give 85 points and Brainliest. Develop a logical argument about whether to use CRISPR/Cas9 to edit the human

Simora [160]

Answer:

CRISPR-Cas9 is a DNA modification technique derived from a bacterial defense mechanism.

This breakthrough innovation allows the deletion and insertion of genes in a simple, fast and efficient way, much like "DNA scissors".

The CRISPR-Cas9 method is increasingly used in laboratories because it has several advantages over the DNA cutting enzymes developed before it.

First advantage, it is much easier to use (compared to other gene-editing tools). It has already allowed several teams of researchers to target several genes at once, including in human cells.

Other major advantages resulting from the simplicity of the system: its speed and its low cost. The CRISPR-Cas9 method takes only a few days (instead of a few months) and is at least ten times less expensive than those used before.

CRISPR-Cas9 is therefore a tool of disconcerting ease to modify the genome of many types of cells (to produce a protein for example), in bacteria, plants, animals and perhaps one day in humans.

6 0

3 years ago

How many fins do perch have? Name them:

Alona [7]

Perch have paired pectoral and pelvic fins, and two dorsal fins, the first one spiny and the second soft. These two fins can be separate or joined.

4 0

2 years ago

Which branch of anthropology involves excavating prehistoric sites or studying historic sites to understand early human ways of

melomori [17]

The answer is <span>anthropology</span>

3 0

3 years ago

High Energy electrons are transported from the chlorophyll to other molecules in the chloroplast by?

Reil [10]

Explanation:

High-energy electrons are transported from the chlorophyll to other molecules by electron carriers beginning with pheophytin, P0 (a form of chlorophyll), then A1 phylloquinone etc.

The chloroplast is an organelle attached to the membrane found in plants. This comprises many plasma membrane invaginations called the thylakoid membrane. It contains chlorophyll pigments, called granum in rows, while the organelle's internal areas are called the lumen. Water fills the granum and the stroma is created.

Further Explanation:

<em>During the light reaction: </em>

Photosystem II (PSII) contains pigments which consume light energy. This energy is exchanged between pigments until it enters the reaction core and is moved to P680; this transfers an electron to a higher level of energy where it then travels to a molecule of acceptors.
For those removed from photosystem II, water supplies the chlorophyll in plant cell with substitute electrons. Additionally, water (H2O) divided into H+ and OH-by light during photolysis acts as a source of oxygen along with functioning as a reducer.
The electron moves down the electron transport chain via several electron carriers
The e- is delivered (to PS I) where it has a continuous loss of energy. Such energy drives the drainage of H+ from the stroma to the thykaloid, which results in a gradient creation. The H+ pass down their curve, passing into the stroma by ATP synthase.
ATP synthase converts ADP and Pi to the ATP molecule, which stores energy.
The electron enters Photosystem I where it heads to P700 pigments. It's. This consumes light energy, transfers the electron to a higher energy level, and moves it on to an acceptor electron. This leaves room for another electron which is then replaced by a photosystem II electron.
In the ETC the NADP molecule is reduced to NADPH by supplying H+ ions. NADP and NADPH are vital to the Calvin cycle, in which monosaccharides or glucose-like sugars are produced after several molecules have been modified.

Learn more about photosynthesis at brainly.com/question/4216541

Learn more about cellular life at brainly.com/question/11259903

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4 0

3 years ago

You have to choose between playing a team sport and taking music lessons because the practices overlap. what economic concept do

trapecia [35]

Time is scare is the economic concept this dilemma demonstrate.

<h3>Why Time is scare?</h3>

The time is scare because there is an over lap between the team sport or doing the music instruction. This demonstrates that there is not enough time to meet demand.

Two of the tasks require more time than is available. Both team sports and music courses cannot be played because of the lack of time.

Although there is a strong need for time, two things cannot happen at once. The need for time is great, but there is nothing one can do about it; she must choose between the two options presented.

To learn more about Time is scare visit:

brainly.com/question/16246314

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2 years ago