Why is RNA thought to have been the first genetic material? A. RNA has been found on meteorites. B. Primitive organisms, such as some viruses, have RNA as their genetic material. C. RNA is capable of self-replication D. RNA is structurally simpler than DNA.

Answers

Answer 1

Answer:

B.

Explanation:

Because if they have traces of RNA in them, then it might be the first genetic material


Related Questions

where are your adrenal glands located in your body

Answers

on top of both kidneys !

Transport proteins in cell membranes maintain the proper balance of _________ (mostly outside the cells) and _________ (mostly inside the cells).

Answers

Answer: sodium and potassium

Explanation:

. Differentiate between analgesic and antibiotic. ann addictive​

Answers

Answer:

Analgesic - pain reliever, analgesic - a drug designed to relieve pain - analgesia.

Antibiotics - Antibacterial drugs that are widely used as medications to treat infections.

Explanation:

This termines are different at all. The only same thing is that they are both drugs

Podrían las plantas realizar la fotosíntesis sin ellas respirar ?

Answers

Answer:

No, porque si no pueden respirar morirían, a pesar de que es una planta, son seres vivos y los seres vivos requieren aliento.

Explanation:

Para realizar la fotosíntesis, las plantas necesitan dióxido de carbono / oxígeno.

Match the vocabulary word with the proper definition.

Definitions

_____ 1. organism that has cells containing a nucleus and other organelles

_____ 2. an organelle inside eukaryotic cells where the DNA is located

_____ 3. cell without a nucleus

_____ 4. a structure within the cytoplasm of a cell that is enclosed within a membrane and performs a specific job

_____ 5. phospholipid bilayer that surrounds and encloses a cell

_____ 6. first person to use the word “cell”

_____ 7. tiny, non-living particles that may cause disease

_____ 8. the material inside the plasma membrane of a cell

_____ 9. cell that contains a nucleus and other organelles

_____ 10. organelle where proteins are made

_____ 11. discovered human blood cells

_____ 12. a single-celled organism that lacks a nucleus



Terms

a. Anton van Leeuwenhoek

b. cytoplasm

c. eukaryote

d. eukaryotic cell

e. nucleus

f. organelle

g. plasma membrane

h. prokaryote

i. prokaryotic cell

j. ribosome

k. Robert Hooke

l. virus

Answers

Answer:

1) Eukaryotic Cell

2)Nucleus

3)Prokaryotic cell

4)organelle

5)Plasma membrane

6)Robert Hooke

7)Virus

8)cytoplasm

9)Eukaryote

10)Ribosom

11)Anton van Leewenhoek

12)Prokaryote

Damselfish will fight over newly available territory. This is a direct interaction between individuals and is an example of

Answers

Answer:

This is a direct interaction between individuals and is an example of... Territorial agression!

Explanation:

territorial behaviour, in zoology, the methods by which an animal, or group of animals, protects its territory from incursions by others of its species. Territorial boundaries may be marked by sounds such as bird song, or scents such as pheromones secreted by the skin glands of many mammals.

Have an awesome day! :D

The virus best known for causing mononucleosis, which is also suspected of contributing to Hodgkin's disease, is called

Answers

Epstein–Barr virus (EBV)

Can Someone help me with this?? Your help will be very much appreciated ! Its somewhat confusing so Please help if you dont mind ? ❣️I would love someone that could answer this correctly !! Thank you <333!

Answers

Answer:

1)Protein is composed of amino acid.

We can identify protein by sequencing amino acids in peptide.

Carbohydrates is primarily avilabke energy source.

2) Proteins and nucleic acids are made up of C H O But carbohydrates and lipids consist of C H O N.

3)Nucleic acid DNA and RNA store and transmit genetic information from one generation to next generation.

Nucleic acid as present in body therefore not considered as essential nutrients.So dietary sources are plant and animal foods like meat fish vegetables etc.

What element is found in liver and is needed to prevent anemia?

Answers

Answer:

Iron (Fe)

Explanation:

What forms in the areas where oceanic plates diverge and new seafloor is created? (3 points)

Abyssal plains
Continental shelf
Continental slope
Mid-ocean ridge

Answers

Answer:

A mid ocean ridge is your answer

Explanation:Divergent boundaries in the middle of the ocean contribute to seafloor spreading. As plates made of oceanic crust pull apart, a crack in the ocean floor appears. Magma then oozes up from the mantle to fill in the space between the plates, forming a raised ridge called a mid-ocean ridge.

the answer is mid ocean ridge

♡what is tissue????✨​

Answers

Tissue is a group of cells that have similar structure and that function together as a unit. A nonliving material, called the intercellular matrix, fills the spaces between the cells. ... There are four main tissue types in the body: epithelial, connective, muscle, and nervous. Each is designed for specific functions.

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In biology, tissue is a Cellular organizational level between cells and a complete organ .

hope it helps you ~

40 Points to answer this question in complete sentences
How has the global climate changed in the last century? What has the greatest impact on the climate where you live? Have humans influenced the climate on Earth? If so, how and what should we do?

Answers

Answer:

Over the last century, the average temperature on the surface of the Earth has increased by about 1.0 degrees F.   The greatest impact is the droughts that my state is constantly in. I believe that we had a great part in global climate change. How I think that we have is all the air pollution and not taking care of out earth the way we should.  How I think that we can fix this is if we start powering our home with more solar. We can also reduce the amount of water that we use.  

Explanation:

In creating recombinant DNA, some restriction enzymes produce ______ ends in both the source DNA and plasmid DNA, and these ends can stick to each other by ______.

Answers

Answer: Single-stranded; complementary base pairing

Explanation:

Restriction enzymes are essential components of recombinant DNA technology because they can be extracted from bacterial cells and utilized in the lab to modify DNA fragments, including those that contain genes (genetic engineering).

What recombinant DNA produce by restriction enzymes?

An isolated bacterial protein called a restriction enzyme breaks DNA at specific sequence-specific locations to produce DNA fragments with a known sequence at each end.

For several laboratory techniques, such as genetic engineering and recombinant DNA technologies, restriction enzymes are essential.

Therefore, In creating recombinant DNA, some restriction enzymes produce Single-stranded  ends in both the source DNA and plasmid DNA, and these ends can stick to each other by complementary base pairing.

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The comparison between the number of human genes and those of other animal species has led to many conclusions, including that _____.

Answers

Answer:

We have a lot of similar genes to those of animal kin.

Explanation:

The genes of humans and animals show more than 50% similarity and conclude the same ancestral origin.

What are genes?

The gene can be described as the hereditary unit that results in the make-up of proteins for the functioning of the body.

The genes are hereditary and evolution there results in the change in the genotype and thereby phenotype with mutations.

The genes of humans and animals result in the similarity of more than m 50%. This concludes that there has been the presence of the same ancestral origin for the animal and humans.

The genetic similarity between humans and the animal species results in the conclusion of humans belong to the animal kingdom and have the same ancestral origin.

Learn more about genes, here:

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What is the condition in a male in which the prostate gland enlarges and compresses the urethra, causing bladder, kidney, and urinary problems?

Answers

Answer:

b. Prostatic hyperplasia

Explanation:is correct

A molecule that closely resembles the shape of a substrate for an enzyme would most likely serve as a __________.

Answers

Answer:

I think it's Inhibitor :)

movement of xylem sap from roots to leaves __________.

Answers

Answer:

trandpiration

Explanation:

(i think)

True or false?:

A small earthquake, called a foreshock, can occur seconds to weeks before a large
earthquake.

Answers

Answer:

false

Explanation:

aftershock, a smaller earthquake that occurs after a previous large earthquake, in the same area of the main shock.

Answer:

The answer is Actually True!

Explanation:

Sometimes, clusters of small earthquakes called foreshock sequences come in the days or weeks before a large earthquake. Less often, seismologists have observed a process called nucleation, where the rate of slip along a fault ramps up gradually before an earthquake. Hope this helps!!!

what is the first color of the rainbow?​

Answers

Answer:

red

Explanation:

red it the first color

what is the name of the provisional head priestess of the asase shrine?

Answers

what is the name of the
provisional head priestess of
the asase shrine? Neko

which animal is one of only two mammals that lay eggs?

Answers

Explanation:

the echidna is the answer

Answer:

Platypus

Explanation:

state one reason why the movement of molecules in method C represents active transport.

Answers

Answer:

Because molecules are moving from an area of low concentration to an area of higher concentration and thats require energy

where are unmyelinated nerve fibers surrounded by schwann cells?

Answers

Schwann cells without myelination are seen in the peripheral nervous system (PNS).

Myelinating Schwann cells and non-myelinating Schwann cells are the two different kinds of Schwann cells. One kind of neuroglial cell is the Schwann cell. Nerves are helped and supported by neuroglial cells. Nerve impulses can be sent at speeds of about 270 miles per hour thanks to the ability of Schwann cells to speed up the process.The myelinating Schwann cell coils around nerve axons with large diameters. The myelinating Schwann cell creates the neurilemma, a lipid base membrane, as it loops itself around the nerve fiber. The myelin sheath develops from the neurilemma.However, unlike a hotdog bun that encircles a hotdog, the non-myelinating Schwann cell does not form myelin; instead, it permits thin nerve fibers to rest along, within, and on top of the non-myelinating Schwann cell. Non-myelinated nerves often have slower nerve transmission.

Learn more about the Schwann cells with the help of the given link:

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What are the two ways that harmful algal blooms can negatively impact an ecosystem? (Site 1).

Answers

Answer:

SEE EXPLANATION FOR ANSWER

Explanation:

Eutrophication: An abundance of cyanobacteria (an algal bloom) is caused by an excess amount of nutrients in the water (phosphorus and/or nitrogen) which depletes the water of oxygen which is vital for plant an animal life. Oxygen is crucial for the survival of an organism, so when there is a lack of oxygen, the results can be fatal. That is why when there are reports of algal blooms, there are almost always mentions of an abundance of dead fish, birds, and other water dwelling organisms (these organisms live in the water, drink from it or use it as breeding grounds etc,) Not only that, but algal blooms produce toxins that can make animals and humans fall ill.

Dead zones: As stated previously, harmful algal blooms deprive the water of oxygen.This can lead to the extreme and create dead zones. Dead zones are zones in an aquatic body where the oxygen levels are not sufficient enough to support aquatic life. Hence why there is no life in dead zones because all of the fish either die, or leave.

Both affect the population of native species and the overall wellbeing of the bodies of water.

Answer:

Eutrophication: An abundance of cyanobacteria (an algal bloom) is caused by an excess amount of nutrients in the water (phosphorus and/or nitrogen) which depletes the water of oxygen which is vital for plant an animal life. Oxygen is crucial for the survival of an organism, so when there is a lack of oxygen, the results can be fatal. That is why when there are reports of algal blooms, there are almost always mentions of an abundance of dead fish, birds, and other water dwelling organisms (these organisms live in the water, drink from it or use it as breeding grounds etc,) Not only that, but algal blooms produce toxins that can make animals and humans fall ill.

Dead zones: As stated previously, harmful algal blooms deprive the water of oxygen.This can lead to the extreme and create dead zones. Dead zones are zones in an aquatic body where the oxygen levels are not sufficient enough to support aquatic life. Hence why there is no life in dead zones because all of the fish either die, or leave.

Both affect the population of native species and the overall wellbeing of the bodies of water.

Explanation:

put above answer line for anyone who can only see preview :)

what is the name of the process in bacteria that involves dna transfer through a cytoplasmic connection known as a pilus?

Answers

It is called conjugation.

True or False: Increases in the width of long bones is a result of bone modeling.

Answers

Answer:

TRUE is correct

Explanation: protecting the post.

Answer:

Explanation:

True

What is the term that describes the loud, high-pitched sound made with each inhalation that occurs when there is respiratory obstruction in the larynx or trachea

Answers

Stridor, its as described in the definition above, a high pitched wheezing sound caused from a blockage

Volcanic eruptions have immediate effects such as
AND long term effects such as
O global warming, hot lava
O global warming, lowering temperatures
O lowering temperatures, global warming
O hot lava, causing more hurricanes

Answers

Explanation:

Lowering temperatures and global warming

a can of pop has a mass of 0.30 kg. what is the weight of that can on earth

Answers

Answer:

the same but I would need to see the answer

where is dna found in eukaryotic cells? why is this important?

Answers

Answer:

nucleus and we need dna so we can figure out people in our past

Explanation:

In eukaryotic cells, DNA is present inside the nucleus of the cell. DNA is important because it codes for life processes, and it transfers to the next generations.

What is DNA?

Three subunits, nitrogenous bases, hydrogen bonding, and a phosphorus backbone make up the double helix structure of DNA. It is a component of genetic material found in all living things.

Every organism has a unique strand of DNA. Although DNA is composed of the same components as those listed above, the bases are joined in a different order. Every organism's genetic makeup was altered as a result.

DNA is found inside the nucleus of the cell, and in prokaryotes, it is found in a coiled form in the center of the cell.

Therefore, the DNA is found in the cell's nucleus of eukaryotic cells. DNA is significant because it transmits to subsequent generations and codes for biological functions.

To learn more about DNA, refer to the link:

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