1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ymorist [56]
3 years ago
9

The first genetic material on earth was probably ________. the first genetic material on earth was probably ________. dna produc

ed by reverse transcriptase from abiotically produced rna dna molecules whose information was transcribed to rna and later translated in polypeptides self-replicating rna molecules oligopeptides located within protocells
Biology
2 answers:
o-na [289]3 years ago
8 0

Answer:

The correct answer would be "self-replicating RNA molecules".

Self-replicating RNA is considered as the first genetic material that evolved on earth.

RNA had capabilities of self-replication as well as catalysis due to which it was efficient to make copies of itself to be passed on to subsequent generations.

The catalytic property enables it to catalyze all the reactions necessary for its survival.

DNA is believed to evolve from RNA which enhances the stability of the genetic material.

-Dominant- [34]3 years ago
3 0
<span>The correct answer is self-replicating RNA molecules.

The first to be known genetic material on earth was self-replicating RNA molecules. Self-replicating RNA replicates and store genetic information, for example, RNA enzymes, protein enzymes.
The most known component of cells is ribosome which is composed of primary of RNA.</span>
You might be interested in
What part of the rotifer is responsible for crushing food?
frozen [14]

Answer:

Rotifers are specialists at living in habitats where water dries up regularly.

The Monogononta, which have males, produce fertilised 'resting eggs' which can resist desiccation (drought) for long periods.[11]

The Bdelloids, who have no males, contract into an inert form and lose almost all body water, a process known as cryptobiosis. Bdelloids can also survive the dry state for long periods: the longest well-documented dormancy is nine years. After they have dried, they may be revived by adding water. In this, and several other ways, they are a unique group of animals.[12]

Explanation:

The front has a ring of cilia circling the mouth. This gave the rotifers their old name of "wheel animalules". There is a protective lorica round its body, and a foot. Inside the lorica are the usual organs in miniturised form: a brain, an eye-spot, jaws, stomach, kidneys, urinary bladder.

Rotifers have a number of unusual features. Biologists suppose that these peculiarities are adaptations to their small size and the transient (fast changing) nature of its habitats.

8 0
2 years ago
explains respiration including the reactants and the products, its purpose and the organelle it occurs in.
ziro4ka [17]
Respiration is the transformation of glucose to ATP, which is energy that the body can use.
Respiration consists of several steps: glycolysis, TCA/Krebs/Citric acid sycle and at last the oxidative phosphorylation. 
The molecules needed for this to happen is water, oxygen (O2), NADH, ATP and glucose.
3 0
3 years ago
Help?......
mash [69]
D-low elevation and low relief
5 0
3 years ago
Read 2 more answers
Which of these conditions is least likely to cause a species to become extinct due to environmental changes?
ivolga24 [154]
More competition for food, because there wont be enough to go around
5 0
3 years ago
Read 2 more answers
1.-La actividad consiste en que identifiques un ser vivo de tu comunidad, ubícalo en alguno de los niveles tróficos y posteriorm
ArbitrLikvidat [17]

Answer:

1.Ratón: se ubica en el segundo nivel trófico, es un consumidor primario que se alimenta de semillas

semillas (productores)---->ratón (consumidor primario)-->serpiente(consumidor secundario) --->zorro(consumidor terciario)

2.

  • Hay 4 niveles tróficos.
  • En el primer nivel se encuentran los productores.
  • En el segundo nivel se encuentran los consumidores primarios, estos se alimentan de los productores.
  • En el tercer nivel se encuentran los consumidores secundarios, los cuales se alimentan de los consumidores primarios
  • En el cuarto nivel se encuentran los consumidores terciarios que se alimentan de los consumidores secundarios.
  • Al consumir lo que se encuentra en el nivel anterior obtienen energía para subsistir y mantener el equilibrio del ecosistema.
  • Los niveles tróficos son los lugares que ocupan un determinado grupo de seres vivos en relación a otros por la energía que tienen y que pasan al siguiente nivel. Se ve en la cadena alimentaria, donde la energía que se obtiene de los nutrientes del nivel anterior siempre es destinada a seres mas grandes en tamaño, es decir que están en el siguiente nivel trófico y necesitan mas energía.

Explanation:

El ratón es un animal herbívoro, es decir que se alimenta de plantas y hierbas, por ende se ubica en el segundo nivel trófico porque consume a los productores. Estos últimos reciben este nombre porque producen su propio alimento a diferencia del resto de los niveles en donde los seres vivos se alimentan de animales o insectos que estén en niveles inferiores.

La energía que obtiene el ratón al consumir a los productores se utiliza en el metabolismo y en las diferentes reacciones que hacen que se mantenga vivo hasta que este es consumido por otro animal transfiriendo la energía al siguiente nivel. Esta cadena sigue hasta llegar al consumidor terciario. En todos los niveles intervienen los descomponedores que degradan los restos de los seres vivos para obtener energía y nutrir la tierra, de esta forma comienzan nuevamente la cadena alimentaria.    

6 0
2 years ago
Other questions:
  • Does fungi have cell walls
    6·1 answer
  • What is the difference between a tortoise, a terrapin, and a sea turtle?
    13·1 answer
  • X-rays can be dangerous true or false
    11·2 answers
  • Changes in the genetic make-up are normally ______
    11·2 answers
  • Which of these help in the asexual reproduction of black bread mold
    5·1 answer
  • What molecules that allows plants to tell how bright light is and which direction it comes from?
    8·1 answer
  • How does beanos travel?
    8·1 answer
  • Which of these is an indicator of the age of a woody plant?
    14·1 answer
  • One of the hazards of biotechnology is -
    11·1 answer
  • HELP!!!!! 50PTS!!!!!!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!