Which hypothesis helps to explain why all organisms share the same genetic code?

Answers

Answer 1
RNA , RNA molecules may have been able to self-replicate without the help of other molecules. If early RNA molecules were able to copy themselves to build new RNA molecules, this helps to explain why all organisms share the same genetic code.

Related Questions

Which two animals are able to generate internal heat to maintain their body temperature in a coid environment

Answers

Parrots and Dogs are able to generate internal heat to maintain their body temperature in a coid environment. Parrots and Dogs are Endotherms. They generate most of the heat they need internally, when it's cold outside.

1) Eubacteria cells lack a nucleus, and are therefore________

Viewing eubacteria requires a microscope,because they all single celled organisms.another word for single celled is_______

Answers

Answer:

The correct answer is - prokaryotic and unicellular.

Explanation:

Eubacteria is known as the true bacteria and belongs to the prokaryotic type of cells which is characterized by no double-membrane organelles or the nucleus. All the genetic material is present in the cytoplasm itself.

These bacteria are single-cell microscopic organisms as they are very minute to see by the naked eyes and required a microscope to study. Another word for the single-cell organisms is unicellular.

1 Invasive plant species affect the interactions of living and nonliving components
of an ecosystem, so the removal of invasive plants is often necessary. The goal of
most plant-control methods is to disrupt or inhibit the function of different plant
systems. For example, insects can be used to chew through roots in order to
reduce a plant's ability to absorb water.
Which of these functions would be most immediately affected by a reduction in water
uptake by roots?
A Disease resistance
B Seed dispersal
C Sunlight absorption
D Photosynthesis

Answers

Answer: photosynthesis

Explanation:

Answer:

D. Photosynthesis

Explanation:

I got it "Correct"

what are 2 stages of photosynthesis, and where does it take place?

Answers

photosynthesis takes place in the roots of the plant

A certain species of trilobite is known to have lived 300 million years ago. If this index fossil was found in a rock layer containing other fossils, what could you infer about the other fossils
a The rock layer killed the trilobite and the other fossils
b The other fossils are about 300 million years old
c The organisms that formed the other fossils are still living.
d The rock layer formed before the trilobite and other organisms

Answers

Answer:

b The other fossils are about 300 million years old

Explanation:

From the description of the problem given, we can correctly conclude that the other fossils are about 300 million years old and even the rock layers formed around that period in time too.

Fossils are the preserved remains of organisms that has once lived. Through the principle of relative dating we can determine the age of fossils and those of other related ones. According to the principle of fossil and fauna succession, "fossils succeed one another in a predetermined form". So, the fossils occurring together within the rock layers are of the same age.

3. Assertion (A):- Plasma membrane is a selectively permeable membrane.
Reason(R):- Plasma membrane allows entry and exit of substances from cell through the process of diffusion.
a. Both A and Rare true and Ris correct explanation of the A
b. Both A and Rare true but Ris not the correct explanation of the A
C. A is true but Ris false
d. Both A and Rare false
4. Plasmodium is an example of Bacteria​

Answers

Answer:

the answer is option B. both A and R are true but R is not the correct explanation of A

Please help
Predict how the inability of a species to adapt within a changing environment may contribute to the extinction of that species.

Answers

It should be a in my opinion

Answer:

B

Explanation:

Which of the five stages of respiration takes place at the alveoli?

Answers

Answer:

External respiration is the exchange of gases with the external environment, and occurs in the alveoli of the lungs.

The alveoli are where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out. External Respiration. Exchange of gases between air and blood at pulmonary capillaries (Alveoli) is the second stage. So it would be the 2nd stage

5. By about how much did average global temperatures increase from 1880 to
2020?*

Answers

2 degrees Fahrenheit and ~ 1 degree Celsius

What are some "topics" to be considered when discussing the California Current
Ecosystem

Answers

Answer: Red tide events

Explanation:

Red tide events causing massive fish die-offs, unprecedented sea ice loss, erosion of coastal wetlands, and bleaching of coral reefs not only impact marine ecosystems but also communities, peoples' well-being, local businesses, and more.

These issues impacting ecosystems and people require solutions that consider ecosystems and people. These types of solutions are Ecosystem-Based Management, which considers social, economic, and ecological trade-offs when deciding how to address these issues.

Which specialist is needed to maintain a patient's
stability in a surgery during which the heart is
stopped?
echocardiogram technician
cardiologist
cardiac perfusionist
cardiology nurse

Answers

Answer:

Cardiac perfusionist

Explanation:

just trust me bro

outline how enzymes can be manufactured for use in biological washing powders

Answers

Answer:

Washing powder protease and protein

Explanation:

What structures are responsible for the movement of chromosomes to the center of the cell in metaphase and their separation in anaphase?

Answers

The structures that are responsible for the movement of chromosomes to the center of the cell in metaphase is the spindle fibers, the cell attaches the centromeres to the spindle fibers to pull the sister chromatids to the center

In anaphase the sister chromatids are separated at the centromere and are pulled to the opposite poles of the cell by the spindle fibers

Help with number 3 !!!

Answers

All of the above factors effect climate

what will you do if you find out that your house is located near an active fault?​

Answers

Answer:

b

Explanation:

When the Earth's continental crust and ocean crust formed, they were different densities. Why did they differ in density and how did this affect their formation?

A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.

B.) The continental crust was thicker and more dense. It sunk below sea level, separating land from water.

C.) The continental crust was thinner and less dense. It rose above sea level, separating land from water.

D.) The continental crust was thinner and more dense. It sunk below sea level, separating land from water.


I think it’s B, but I’m not completely sure. Help please!

Answers

Answer: A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.

Explanation:

The Ocean crust is made out of rocks like basalt with a thickness of about four miles. The Continental crust on the other hand is made out of granite and other similar minerals and is between six and 47 miles in thickness which makes it thicker than the Oceanic crust.

With basalt being more dense than granite, the Oceanic crust sank and the Continental crust rose thereby separating land from water.

Answer:

Answer: A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.

Explanation:

Toook the testttt :)))

FLVS??? :)

Based on the law of conservation of matter, which
statement is true about a chemical reaction?
А
Mass stays the same.
B
Matter is created.
С
Matter is destroyed.
D
Matter in a reaction can never change states.

Answers

Answer:

a

Explanation:

I would say A because matter is never created or destroyed it is altered

I NEED HELP!
It explains in the image.

Answers

1. G1= 50, G2= 58, G3= 66, G4= 74, G5= 82

2. Generation 6

3. A possible scenario could be if no visually predators are near the habitat they could sing.

Hybridization______.

Answers

Answer:

i guess it would be C but I'm not sure bout that

Which alele combination represents a male who has an X-linked recessive disorder?

Answers

Explanation:

The allele combination would most likely be xx if recessive

(GIVING BRAINLIEST!!)

Which of the following correctly lists the parts of the water cycle?

A) Evaporation, condensation, temperature, precipitation, collection
B) Condensation, build-up, runoff, precipitation, collection
C) Runoff, precipitation, evaporation, melting, condensation
D) Evaporation, condensation, precipitation, runoff, collection

Explain why

Answers

Answer:

D) Evaporation, condensation, precipitation, runoff, collection

Please give me brainlyest

Explanation: The water cycle shows the continuous movement of water within the Earth and atmosphere. System that includes many different processes. Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow. Then I does runoff and creates a new water source or goes back to a water source.

(DONT MIND THE FACES I PUT) Which of the following is an example of maintaining homeostasis?


A. Learning :I

B. Sweating :o

C. Playing :)

D. frowning :(

Answers

Learning so a I hope it’s right

Answer:

sweating

Explanation:

The body maintains homeostasis by eliminating these substances through the urinary and digestive systems. An individual simply urinates and defecates the toxins and other nasty things from the blood, restoring homeostasis to the human body.

Which product is the result of light reactions in photosynthesis? O A. Water B. Glucose O c. Carbon dioxide OD. Oxygen ​

Answers

Answer:

D. Oxygen

Explanation:

Plants absorb carbon dioxide (CO2) and release oxygen for humans and animals to breathe in. Afterward, they'll release CO2 for plants to absorb, which forms a cycle.

Answer:

Oxygen

Explanation:

Both light dependent and light independent reactions in photosynthesis create glucose. But, only light dependent reactions convert carbon dioxide to oxygen.

Light independent: Carbon dioxide + water --> ATP and NADP(Energy/Glucose) and water

Light dependent: Carbon dioxide + water + light --> Glucose(ATP and NADP), water, and oxygen

A form of arthritis is a common complication of dysentery.

True
False

Answers

Answer:

false

Explanation:

The image below depicts a bowling ball traveling down the lane and striking pins, knocking them down. Identify at least two forces acting on the bowling ball.


1. gravity

2. friction

3. air resistance
(also called ‘drag’)

4. density




Answers

Friction and air resistance

A student proposes that the cell types shown here can be classified as to plant,animal,fungal,and bacterial. The student also proposes that an evolutionary relationship can be hypothesized based on the data. What evolutionary relationship and classification is best supported by the data

Answers

Answer:

Cell types I and III are animal and fungal cells, which are most closely related since they are eukaryotic cells that are heterotrophic.

Explanation: ¯\_(ツ)_/¯

Does natural selection affect humans? How and why

Answers

Answer:

Yes it does affect humans.

Explanation:

Natural selection acts on the phenotype, but evolution is a change in the frequency of alleles in a population over time, a change in genotype. So natural selection acts on phenotype, but it is the connection to genotype that makes it the mechanism of evolution. Many traits vary among different members of a population of humans and animals, from body size to hair color, and those differences are often linked to differences in genes. Natural selection occurs when some of those traits help some individuals survive and reproduce more than others. In scientific terms, these hazards are referred to as selection pressures. They put pressure on us to adapt in order to survive the environment we are in and reproduce. It is selection pressure that drives natural selection "survival of the fittest" and it is how we evolved into the species we are today.

What do checkpoints do in the cell cycle? *

Answers

Answer:A checkpoint is a stage in the eukaryotic cell cycle at which the cell examines internal and external cues and "decides" whether or not to move forward with division.

Explanation: Easy Peasy

i need help cant get this one wrong

Answers

Answer:

ik that 1 goes to blue

Explanation:

tRNA is the molecule that brings the appropriate _______ _______ to the mRNA using an anticodon.
fill in the blank

Answers

I think the answer is cytoplasm :))
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Each month Javier takes his recycling to the local recycling center where he separates the glass bottles into differentcolors. He would like to determine the proportion of glass his household recycles that is clear glass, so he mixes uphis container and randomly grabs 10 glass items and determines the proportion that are clear glass.The population isThe sample isThe parameter is the proportion ofThe statistic is the proportion of Raymond Moss, vice president of Moss Auto Parts, gets an annual bonus of 15% of any income, before deducting bonus and income taxes, above $100,000. Income before bonus and income taxes is $250,000. The effective income tax rate is 30%. Required: 1. Compute the amount of Raymond Moss's bonus. Bonus Richard learned a total of 30 appetizer recipes over the course of 6 weeks of culinary school. After 7 weeks of culinary school, how many total appetizer recipes will Richard know? Assume the relationship is directly proportional. The Sanchez family is building the dog pen shown.What is the area of the dog pen?PLEASE HELP What does the speed of air have to do with air pressure?Detailed answer pls!!! i will give brainliest!!!! what is +x 4 for =x 3 table salt conducts electricity in water, but sugar does not. Explain why? Which structure inside plant cells helps in photosynthesis? Chloroplast Mitochondrion Nucleus Vacuole Please Please Help ME!!! its so hard 50 points Brainiest for correct answer. Help help help help help PLS HELP: I am unsure how to calculate this into final numbers.Cal Amity decided to survey 880 inhabitants of the Kingdom so that he could have a confidence level of 95% and a margin of error of 3%. He found that 72% of his sample answered "yes" to the second survey question, which was, "Have you done anything, or will you do anything, to prepare your kitchen for Gourmando's visit?"Mr. Amity can infer that, most likely, between _[blank A]_ and _[blank B]_ inhabitants of the Kingdom have done, or will do something, to prepare their kitchen before Gourmando's visit.Options:blank A: 3450blank B: 5000blank A: 0blank B: 300blank A: 3600blank A: 150blank B: 3600blank B: 3750 Type a paragraph explaining how the atoms in sugar molecules can be used to form amino acids and other large carbon-based molecules. Cite Work Question 10(Multiple Choice Worth 1 points)(05.02 MC)The table below shows data from a survey about the amount of time students spend doing homework each week. The students were in either college or high school:High Low Q1 Q3 IQR Median Mean College 50 6 8.5 17 8.5 12 15.4 11.7High School 28 3 4.5 15 10.5 11 10.5 5.8Which of the choices below best describes how to measure the spread of these data?(Hint: Use the minimum and maximum values to check for outliers.) Both spreads are best described by the IQR. Both spreads are best described by the standard deviation. The college spread is best described by the IQR. The high school spread is best described by the standard deviation. The college spread is best described by the standard deviation. The high school spread is best described by the IQR. Manuel eats lunch in the cafeteria every day. How does his digestive system make use of the lunch he eats? aA. It changes the food into cells that protect the body from illness. bB. It converts food into oxygen that is absorbed into the blood. cC. It breaks down some food into usable material for the body and discards the rest. dD. It breaks down food into the chemicals needed by the body to regulate temperature. A researcher who does not want to manipulate or interfere with the behavior of research subjects would conduct a __________ study.A.cross-sectionalB.naturalistic observationC.caseD.longitudinalPlease select the best answer from the choices providedABCD List some harm reduction strategies that have been adopted to address addictive behaviours. A pair of shoes is on sale for 15% off. With this discount, customers will save $9 if they buy the shoes. 15% is the whole, part or percent. $9 is the (blank) and the original price is (blank). Which is a natural source of greenhouse gases? Which expression is equivalent to 3 the 5th power? help i need help fast