What are some possible sources for early organic molecules?

Answers

Answer 1

Answer: I hope this is the right answer you were looking for, if not I'm sorry

Explanation:

The first organic molecules formed about 4 billion years ago. This may have happened when lightning sparked chemical reactions in Earth's early atmosphere. RNA may have been the first organic molecule to form as well as the basis of early life.


Related Questions

The neuron that transmits the impulse is called the

Answers

Answer:

The neuron that transmits the impulse is called the presynaptic cell.

The nervous system interacts with the endocrine system by ____.

A. sending neurotransmitters to endocrine target cells

B. sending neurotransmitters to neuroendocrine cells

C. translating messages from endocrine cells

D. receiving messages from hormones

Answers

Answer: D. Receiving messages from hormones.

Explanation:

I would definitely go with D as it seems to be the most logical answer

Lactobacillus in yogurt, some Escherichia coli in the intestines of humans and animals, and Rhizobium that fixes atmosphere nitrogen are all considered beneficial bacteria. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a True b False

Answers

Answer: a. True.

Explanation:

Lactobacillus is a genus of gram-positive, facultative or microaerophilic bacteria that produce lactic acid. They are normally found in different parts of the body such as the mouth, digestive tract and vagina. Lactobacilli usually do not cause disease, although they can cause dental caries. Some lactobacilli have a homofermentative metabolism, that is, they produce lactic acid from sugars, which makes their environment acidic and inhibits the growth of pathogenic bacteria. Some species of Lactobacillus are used in the industry for the production of yogurt, cheese and other fermented foods.

Escherichia coli is a bacterium that is part of the microbiota of the gastrointestinal tract of various animals. It is a gram-negative bacillus, facultative anaerobe, and the most abundant commensal of the microbiota of the gastrointestinal tract where, together with other microorganisms, it is essential for the correct functioning of the digestive process. It also participates in the production of B and K vitamins.

Rhizobium is a genus of gram-negative soil bacteria that fix atmospheric nitrogen and live in symbiosis with certain plants (such as leguminous plants) in their roots, after a process of infection induced by the plant itself through the secretion of lectin, to which they provide the nitrogen necessary for the plant to live and which in return gives it shelter. Fixation is the combination of molecular nitrogen (N2) with hydrogen or oxygen to give ammonium or oxides that are incorporated into the biosphere. Molecular nitrogen, which is the major component of the atmosphere, is inert and not directly usable by most living things. Therefore, it involves the incorporation of a significant amount of nitrogen into the biosphere.

Therefore, all three are considered beneficial.

Why do you think the parts of the body have different sensitivities? Write an argument to support your explanation.​

Answers

The four senses of sight, hearing, smell, and taste are located in specific parts of the body.

The sense of touch is located throughout the body, in your largest organ, the skin. The sense of touch originatees in the bottom layer of your skin called the dermis.

The dermis is filled with many tiny nerve endings that give you information about the things your body is touching. Nerve endings do this by carrying the information to the spinal cord, which sends messages to the brain where the feeling is registered.

The nerve endings in your skin can tell you if something is hot or cold. They can also feel if something is hurting you. Your body has about twenty different types of nerve endings that all send messages to your brain. However, the most common receptors are heat, cold, pain, and pressure or touch receptors. Pain receptors are probably the most important for your safety because they can protect you by warning your brain that your body is hurt.

Some areas of the body are more sensitive than others because they have more nerve endings. It hurts when you bite your tongue because the sides of your tongue have a lot of nerve endings that are very sensitive to pain. Your tongue, however, is not as good at sensing hot or cold. That is why it is easy to burn your mouth when you eat something really hot. Your fingertips are also very sensitive. People who are blind use their fingertips to read Braille by feeling the patterns of raised dots on their paper.

A river is being polluted with fertilizer
runoff from a neighborhood of houses.
This is considered
A. point source pollution
B. nonpoint source pollution
C. heavily regulated water pollution
D. illegal

Answers

B. Non-point source pollution

In Wakanda, in a population in Hardy-Weinberg equilibrium, the frequency of the single recessive allele controlling vibranium assimilation, which affects superhuman abilities, is 0.2. What is the percentage of the population that is heterozygous for this allele

Answers

Answer:

32%

Explanation:

Hardy–Weinberg equilibrium is also known as Hardy–Weinberg law. The idea of Hardy–Weinberg equilibrium is about the frequency of alleles in a population. The frequency of an allele in the population will always remain the same in a population if that population is not influenced by any evolutionary consequences.

Hardy–Weinberg equilibrium binomial expression formula is p2+2pq+q2=1. Suppose the frequency of recessive allele = q.

and another normal allele is = p

Here Q = 0.2 so P will be 1- Q or 0.8

By Hardy–Weinberg equation p2+2pq+q2=1, Here 2pq denotes the frequency of recessive allele, so 2pq = 2 × 0.2 × 0.8 = 0.32, if converted into percentage it will be 32%.

A man with O type blood marries a woman with AB type blood. What are the possible blood types of their offspring?
(Set up a Punnett square for an O and AB blood type)

-What is the probability that the offspring will have ..

a. O blood?

b. A blood?

c. B blood?

d. AB blood?

Answers

P(O blood)= 0

P(A blood) = 2/4= 1/2

P(B blood) = 1/2

P(AB blood)= 0

i = recessive Gene

IA = dominant Gene

IB = dominant gene

B. A blood. Cause the women is AB while the man is O, O being the top tier blood could only boost it to A blood

Given the following cross TtYyRr x TtyyRr (T = tall; t = short Y = yellow; y = green R = round; r = wrinkled), what proportion of offspring would be expected to be short plants with round, green seeds. Write your answer as a reduced fraction - e.g. 1/2 proportion is

Answers

Answer:

3/32 ttyyR-  

Explanation:

Cross: Tall, Yellow, Rounded individuals with a tall, green, rounded individual

Parentals) TtYyRr      x      TtyyRr      

Gametes) TYR, TyR, TYr, Tyr, tYR, tyR, tYr, tyr (Parent one)

                 TyR, TyR, Tyr, Tyr, tyR, tyR, tyr, tyr (Parent two)

We need to know what proportion of offspring is expected to be short plants with round, green seeds. So we need to identify the gametes for these traits. The genotypes are:

Shot → ttRound → RR or RrGreen → yy

⇒ Parent one can provide gametes tyR and tyr

⇒ Parent two can provide gametes tyR and tyr

(1/8 tyR x 2/8 tyR) + (1/8 tyR x 2/8 tyr) + (1/8 tyr x 2/8 tyR) =

2/64 ttyyRR + 2/64 ttyyRr + 2/64 ttyyRr =

1/32 ttyyRR + 2/32 ttyyRr =

3/32 ttyyR-          

The branch of science which deals with the gene and inheritance is called biology.

The correct answer is 3/32.

When a parent has 3 characters and crosses with other parents which have a 3 character is called a trihybrid cross.

In this question, the genotype of the parent is given as follows:-

Mother - TtYyRrFather - TtyyRr

The gametes formed by the parents is as follows:-

TYR, TYr, TyR, Tyr,  tYR, tYr, tyR, tyr is gamete of motherTYR, TYr, TyR, Tyr,  tYR, tYr, tyR, tyr is gamete of father.

According to the law of inheritance it stated that the each gamete can fused with any gamete to increase the chances of variation.

Hence, after the crossing the number of offspring will form is 32.

Therefore the offspring which has a short plant with a round green seed is 3/32.

Hence, the correct answer is 3/32.

For more information, refer to the link:-

https://brainly.com/question/12985618

A plant growing in an area where it is not required is called?

Answers

Answer:

weed(s)

Explanation:

it’s a plant that is out of place, undesirable, or an annoyance because it interferes with agricultural or animal production.

hope this helped!

liam says that products with more food miles are likely to be better for the enviroment is he right

Answers

no he is not right plz mark me as a brilliant

describe the energy transfer between water molecules occurring as water moves in the ocean.​

Answers

Explanation:

Mark me as brainliaste

Then I will give you answer

The average amino acid length of proteins in Escherichia coli is 235. Therefore, according to the video, the elongation time for an average E. coli protein would be about _______seconds.
How is the small ribosomal unit positioned to allow for translation to start at the proper start codon?Choose one:
A. Shine-Dalgarno sequence
B. The start codon sequence is specifically attracted to the P site.
C. Initiation factors position the mRNA accordingly.
D. The small ribosomal subunit starts at the far 5' end of mRNA where the start codon is located.

Answers

Answer:

approximately 15 seconds

A. Shine-Dalgarno sequence

Explanation:

In Escherichia coli, it has been shown that the translation elongation rate is approximately 16 amino acids per ribosome per second (16 x 15 = 240). On the other hand, the Shine-Dalgarno sequence is a polypurine stretch of variable length present in prokaryotic cells and acts as a ribosomal binding site for the messenger RNA (mRNA). This sequence can base-pair to a complementary sequence known as the 'anti-Shine-Dalgarno sequence' at the 3' end of the bacterial 16S rRNA subunit and is required to initiate the process of translation by which a polypeptide chain is synthesized. Generally, the Shine-Dalgarno sequence is located from 10 to 8 nucleotides upstream of the start codon (AUG codon). In E. coli, the Shine-Dalgarno sequence is AGGAGGU.

What role does carbon dioxide play in cellular respiration?

Answers

Answer:

The process of cellular respiration, oxygen gas is required to serve as an acceptor of electrons.

Explanation:

During the process of cellular respiration, carbon dioxide is given off as a waste product. This carbon dioxide can be used by photosynthesizing cells to form new carbohydrates.

how was the state of the ecosystem before the wolves were introduced?

Answers

Explanation:

In 1995, Yellowstone brought the wolves back to the park. After 70 years without wolves, the reintroduction caused unanticipated change in Yellowstone's ecosystem and even its physical geography. ... When threatened by wolves, deer don't graze as much and move around more, aerating the soil

hi good morning

Answer:

In 1995, Yellowstone brought the wolves back to the park. After 70 years without wolves, the reintroduction caused an anticipated change in Yellowstone's ecosystem and even its physical geography. ... When threatened by wolves, deer don't graze as much and move around more, aerating the soil.

Explanation:


Which statement about blomes is true?
A. Different blomes share similar plants and wildlife.
B. Each blome has only one ecosystem.
C. There are only three blomes on the Earth.
D. Blomes are determined by climate zones.

Answers

Answer: D. biomes are determined by climate zones

Explanation:

ERDE
Before
dispensing
After dispensing
A
B В
9 mL
5 mL
4 mL
Which pipette above shows that 4 mL of liquid has
been dispensed?

Answers

If some send links report them

Answer:

A

Explanation:

In the population of plant K, each plant has only red flowers or only white flowers. A farmer collected the seeds from plant K with red flowers to grow new plants. Explain why the new plants will have only red flowers

Answers

Answer:

nose

Explanation:

nosenosenosenosenosenosenosenosenosenosenose

The new plants will have only red flowers because the trait for red flowers is determined by a dominant gene, and all the plants in population K have the same homozygous genotype for the flower color.

In genetics, the flower color trait in population K is determined by genes present in the plants' DNA. There are two alleles, or gene variants, for the flower color: one for red flowers (let's call it R) and one for white flowers (let's call it r). The gene for red flowers (R) is dominant, meaning that even if only one copy of the gene is present in an individual's genotype (heterozygous), it will produce the red flower phenotype. On the other hand, the gene for white flowers (r) is recessive, which means it will only produce the white flower phenotype if two copies are present in the genotype (homozygous recessive).

In population K, all the plants have only red flowers, indicating that they must have the genotype RR. Since all the plants are homozygous for the dominant red flower gene (RR), when they reproduce, they can only pass on the dominant allele R to their offspring. As a result, all the new plants that grow from the seeds collected from these plants will also have the genotype RR and, therefore, express the red flower phenotype.

Since there are no plants in population K with the genotype rr (homozygous recessive), which is necessary for white flowers, there is no chance of white-flowered plants appearing in the new generation. Thus, the new plants will have only red flowers due to the uniformity of the homozygous dominant genotype in the original population.

To learn more about population, here

https://brainly.com/question/15889243

#SPJ2

how are seasons in the northern hemisphere related to seasons in the southern hemisphere?

Answers

Answer: In the Northern Hemisphere, the seasons are the polar opposite of those in the Southern Hemisphere.

Explanation: As a result, winter in Argentina and Australia begins around June. In the Southern Hemisphere, the winter solstice occurs on June 20 or 21, while the summer solstice, the longest day of the year, occurs on December 21 or 22.

hope this helps good luck mate! :)

Answer:

Reveresd.

Explanation:

Northern/Southern

Summer/Winter

Fall/Spring

When it is summer in the northern it is winter in southern. After that the northern goes into fall while the southern goes into spring.

La historia del Perú :o

Answers

La história del peru

Quando os espanhóis desembarcaram em 1531, o território do Peru era o núcleo da civilização Inca altamente desenvolvida. Centrado em Cuzco, o Império Inca estendeu-se por uma vasta região, estendendo-se do sudoeste Equador ao norte do Chile .... Em 1532, eles chegaram ao país, que chamaram de Peru.

The History of Peru

When the Spanish landed in 1531, Peru's territory was the nucleus of the highly developed Inca civilization. Centered at Cuzco, the Inca Empire extended over a vast region, stretching from southwest Ecuador to northern Chile... . In 1532, they arrived in the country, which they called Peru.

#CarryOnLearning

#BrainliestBunch

-BrainliestUser

16.Which part of your nervous system controls the involuntary actions like how and when your stomach goes through mechanical digestion?

Answers

Answer:

Autonomic nervous system

Explanation:

Place a word or phrase from the left into each blank in a sentence on the right to make it correct.
a. tibialis anterior
b. extensor hallucis longus
c. lateral condyle
d. extensor retinacula
e. medial epicondyle
f. extensor digitorum longus
A. The_________ are the broad ligamentous sheets that contain the tendons of the anterior compartment muscles.
B. Inversion and dorsiflexion of the foot is achieved by contracting the _________muscle.
C. The _________ muscle has a skeletal attachment on the distal phalanx of the first digit.
D. The___________ of the tibia is a skeletal attachment site of the tibialis anterior muscle.

Answers

Answer:      

A. The d. extensor retinacula are the broad ligamentous sheets that contain the tendons of the anterior compartment muscles.

B. Inversion and dorsiflexion of the foot is achieved by contracting the a. tibialis anterior muscle.

C. The b. extensor hallucis longus muscle has a skeletal attachment on the distal phalanx of the first digit.

D. The c. lateral condyle of the tibia is a skeletal attachment site of the tibialis anterior muscle.

Explanation:

The two extra options are the f. extensor digitorum longus and the e. medial epicondyle. The first one is a muscle in the anterior part of the legs that originates in the anterior lateral condyle of the tibia and the anterior part of the fibula. Its insertion is in the four phalanges of the 2, 3, 4, and 5 digits. The first digit has the insertion of the extensor hallucis longus. The extensor digitorum longus and the b. extensor hallucis longus has the same function, the extension of the toes, the extensor hallucis longus only extends the first digit, and the extensor digitorum longus extends the other four digits simultaneously.

The second extra option, the medial epicondyle, is in the femur. It is a prominence in the distal part of this bone. The tibial collateral ligament and the Magnus muscle insert in this part of the femur.

Describe how decomposers link the living and non-living parts of an ecosystem

Answers


Decomposers are living organisms that breaks down other living and non-living things into smaller parts.

Decomposers can recycle dead plants and animals into chemical nutrients such as carbon and nitrogen that are released back into the soil, air and water as food for living plants and animals.
Decomposers are living organisms that breaks down other living and non-living things into smaller parts. ... Decomposers can recycle dead plants and animals into chemical nutrients such as carbon and nitrogen that are released back into the soil, air and water as food for living plants and animals.

Decomposers play a critical role in the flow of energy through an ecosystem. They break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers.

Decomposers, such as bacteria, fungi, termites, and earthworms, are scavengers that feed on the organic material found in dead producers and consumers. They break down the organic material to the nutrient level. Nutrients in soils are essential for producers to grow. Nutrients include nitrogen, carbon, and phosphorous. Thus, dead consumers (and producers) are recycled back into new producers.

Refer to the given diagram to answer Question 9
Y-ANTIBODIES
X-WBC
V-RBC
W-PLATELETS
QUESTION 9
ry
Which of the labelled structures in the diagram match the function below.
1.
Contains haemoglobin
II.
Carries out phagocytes
III.
Produces antibodies
J.
Involves in blood clotting
IV
A.
V
Y
W
В.
W
V
Y
С.
V
Y
X
w
D
Y
X
W​

Answers

Answer:

C

Explanation:

Answer c contains all the list listed

23. Which of the following muscles make up the rotator cuft?
A Supraspinatus, infraspinatus, teres minor, subscapularis
B. Supraspinatus, teres major, teres pectoralis minor, subscapularis
C. Supraspinatus, infraspinatus, teres minor, levator scapulae

Answers

Answer:

A

Explanation:

together they assist in stabilizing the shoulder joint as well in performing various arm movements

It’s a but my bad if it’s no

Ta bien mi respuesta •w•'''' ?

Answers

Answer:

yes

Explanation:

that is the answer I think so.

What is the function of chloroplasts found in the cells of plant leaves?
O A. Chloroplasts transport water and nutrients through the plant.
B. Photosynthesis occurs in chloroplasts.
C. Plant reproduction occurs in chloroplasts.
D. Chloroplasts absorb substances from the soil.

Answers

Answer:

B. Photosynthesis occurs in chloroplasts.

Explanation:

Photosynthesis occurs with the help of
A. CO2 and Water
B. SO2 and water
C. Oxygen and CO2
D. Oxygen and water​

Answers

Explanation:

(A) = Carbon dioxide and water. Because, photosynthesis is the process by which green plants manufacturer their food by combining water and carbon dioxide in the process of sunlight energy trapped by chlorophyll to produce carbohydrate and released oxygen. from the above definition we see that, Photosynthesis cannot occur without water and carbon dioxide present

How do Earth's spheres interact as systems, both within each sphere and with other spheres?

Answers

Answer:

All the spheres interact with other spheres. For example, rain (hydrosphere) falls from clouds in the atmosphere to the lithosphere and forms streams and rivers that provide drinking water for wildlife and humans as well as water for plant growth (biosphere). ... water evaporates from the ocean into atmosphere.

quá trình chuyển hóa chất béo

Answers

Gan đóng vai trò trung tâm trong mọi quá trình trao đổi chất trong cơ thể. Trong quá trình chuyển hóa chất béo, các tế bào gan phân hủy chất béo và tạo ra năng lượng. Chúng cũng sản xuất khoảng 800 đến 1.000 ml mật mỗi ngày.

Definition: This is the gas produced as a result of respiration.
Example: CO2
Hello me ASAP

Answers

Answer:

carbon dioxide

Explanation:

Carbon dioxide. Hope this helps.
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