Explain how we know organisms evolved, beginning with how complex molecules were first created. At which point must science speculate about how life began? Why is that? Do you think we will ever figure out the missing clues?

Answers

Answer 1
Answer:

Answer:

oof dis is like a whole essay if we anwsered this

Explanation:

Answer 2
Answer:

Answer:

Untangling the origins of organisms will require experiments at the tiniest ... as scientists are hoping to discover, the path to it cannot be so hard. ... To understand how life might begin, we first have to figure out ... Some scientists think that life originally used simpler molecules and only later evolved RNA.

Explanation:

yes

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Related Questions

Some areas of an ocean are known as dead zones. These zones form when excess organic material decomposes. This increased decomposition uses up the oxygen from the water. Which human activity is most affected by the increasing number of dead zones in the ocean? A.Offshore oil drilling, because water in dead zones is toxicB.Commercial fishing, because fish cannot survive without oxygenC.Commercial shipping, because dead zones change the course of ocean currentsD.Sand mining, because oxygen is not available to form the sands on ocean beaches
Urban areas use __________ energy __________ than rural areas, mostly because so many more people live there. A) solar power B) more; in total C) less; in total D) an electric furnace
Describe what will occur the population if it increases in number when food is scarce?
Original DNA coding strand: TAC CCG ACG GGC GAT AGT TTCDNA 1: TAC CCA CGG GCG ATA GTT TCDNA 2: TAC CCG ACG GGC GAT AGT TTTa) What types of mutation have occurred in each of the DNA 1 and DNA 2 sequences?b) Explain how these mutations affect the amino acid sequence produced and the overall effect on the final protein. Which mutation will cause the most disruption to the overall protein structure and why?
Comb jellies are most closely related to:______.a. cnidarians.b. sponges.c. flatworms.d. roundworms.e. rotifers.

During winter in the Northern Hemisphere, A. the Sun rises earlier and sets later than during other seasons. B. the Sun appears lower in the sky than during other seasons. C. there are more hours of visible sunlight each day than during other seasons. D. the Sun rises in the Northeast and sets in the Northwest.

Answers

B. the Sun appears lower in the sky than during other seasons.

D. the Sun rises in the Northeast and sets in the Northwest.

On the northern hemisphere the north is to the left, the Sun rises in the east (far arrow), culminates in the south (to the right) while moving to the right and sets in the west (near arrow). Both rise and set positions are displaced towards the north in summer, and towards the south for the winter track.


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Answer:

its b

Explanation:

because days get shorter in the winter

Which of the following features is not universally accepted as a sign of physical attractiveness? A. facial symmetry B. a curvy figure C. average body type D. average features Please select the best answer from the choices provided A B C D

Answers

A curvy figure is not a universally accepted sign of physical attractiveness. Therefore option “B” is correct.

What is physical attractiveness?

It is the measure of the degree to which a person can look and aesthetic pleasing.  Facial symmetry and sociocultural and personal choices of a person are evaluating factors.

Facial symmetry is based on the symmetry of the face of a person and youthfulness. It helps in determining the beauty of a person.

Sociocultural depend on how a person combines both social and cultural factors. Factors affecting are such as personal beliefs,  and values. Personal choices vary from person to person as everyone has different choices.

Physical attractiveness is the evaluation of the physical appearance of a person.

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Answer:The answer is B.curvy figure

Explanation:

What is difference between respiration and photosynthesis?​

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Answer:

Respiration is a vital process carried out by the human being where he breathes oxygen gas and emits carbon dioxide .. As for the photosynthesis process, it is a process by which plants produce oxygen gas and absorb carbon dioxide.

Answer:

Photosynthesis involves the use of energy from sunlight, water and carbon dioxide to produce glucose and oxygen. Cellular respiration uses glucose and oxygen to produce carbon dioxide and water.

What would be the appropriate range for resistance and repetitions when one is designing a resistance training program targeted to develop strength? Muscular endurance? Muscular power? Hypertrophy?

Answers

Answer:

Explanation:

Strength:  The strength range must include 2-6 sets, repetitions should be less than or equal to six, resistance must be offered for 2-5 minutes.

Muscular endurance: The muscular endurance must include repetitions of 12-16 and resistance must be increased by 5% by each repeat.

Muscular power: The sets must be 3-5 times with repeats of 1-2 times and resistance must also be provided.

Hypertrophy: The sets of repeats must be 6-12 times. The resistance must be offered for 30-90 seconds.

What is ment by paranoid​

Answers

1 : characterized by or resembling paranoia or paranoid schizophrenia a paranoid psychiatric patient. 2 : characterized by suspiciousness, persecutory trends, or megalomania behaving in a paranoid manner with accusations of persecutions. 3 : extremely fearful was so paranoid that he was afraid to walk the streets.

Answer:

when you are seeing thing that is not there or when you are having illusions

Explanation:

A geneticist discovers that two different proteins are encoded by the same gene. One protein has 56 amino acids, and the other has 82 amino acids. Which of the statements are possible explanations for how the same gene can encode both of these proteins? The same gene encodes both proteins by generating a poly(A) tail on the pre‑mRNA. The same gene encodes both proteins by using different combinations of exons in the pre‑mRNA via alternative splicing. The same gene encodes both proteins by using different combinations of introns in the pre‑mRNA via alternative splicing. The same gene encodes both proteins by using multiple 3′ cleavage sites in the pre‑mRNA.

Answers

Answer:

The same gene encodes both proteins by using different combinations of exons in the pre‑mRNA via alternative splicing.

Explanation:

According to the question, two different proteins (one with 56 amino acids and the other with 82 amino acids) are found to be encoded by the same gene. This is possible due to a process called ALTERNATIVE SPLICING.

Alternative splicing is a phenomenon whereby the protein-coding region of a gene called EXON is manipulated in such a way that variety of proteins emanate from a single gene. This manipulation includes the removal or inclusion of EXONS in the gene, so as to give rise to different combinations of mRNA, hence, different proteins will be translated from the different mRNA from the same gene.

In this case, exons were removed from one mRNA to have lesser amino acids (56) in the translated protein while exons were included in the other mRNA to have more amino acids (82).

Final answer:

The same gene can encode two different proteins via mechanisms such as the use of different combinations of exons in the pre-mRNA through alternative splicing, and the gene using multiple 3′ cleavage sites in the pre‑mRNA.

Explanation:

The subject of this question is Alternative Splicing, a processing event in biology that allows a single gene to code for multiple proteins. This process is possible due to the gene's complex structure comprised of multiple exons and introns. Two possible explanations for the same gene encoding two different proteins are through the use of different combinations of exons in the pre‑mRNA via alternative splicing, and the gene using multiple 3′ cleavage sites in the pre‑mRNA. The first mechanism occurs when the gene mix and matches exons during RNA splicing, leading to different mature mRNA molecules which code for different proteins. The second mechanism suggests that the same gene encodes different pre-mRNAs, and the different 3' cleavage sites determine the size of the encoded protein.

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