Another major problem that was associated with Miller–Urey experiment was that scientist claimed that reactive mixture of methane and ammonia used doesn't did exist in large amounts on early Earth.
What is Miller–Urey experiment all about?The Miller–Urey experiment serves as a chemical experiment that show that amino acid can be produced by mixture of gases and water.
Therefore, the mixture of gases requires cannot be gotten on earth which is a major challenge.
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[FW.02]The pictures below show a sinkhole and a cave in Florida
Public Domain
2010 Jupiterimages Corporation
Sinkhole
Cave
Which of these statements is correct about the sinkhole and cave shown in the pictures?
O Both are formed by the heating of groundwater.
Both are formed by the chemical reaction between limestone and groundwater
The sinkhole is formed by the the heating of groundwater and the cave is formed by the chemical reaction between limestone and groundwater.
O The sinkhole is formed by the chemical reaction between limestone and groundwater and the cave is formed by the heating of groundwater.
Answer:
B). Both are formed by the chemical reaction between limestone and groundwater.
Explanation:
The second statement correctly states that both Sinkhole and Cave as shown by the picture are created as a result of the chemical reaction that takes place between the groundwater and limestone. The sinkholes are characterized as the cavities that form in soluble rock by the action of water. It is often caused due to the excess withdrawal of groundwater that leads to the collapse of the surface. Similarly, the caves also form when the limestone(a rock) dissolves due to rainwater percolating CO2 through the soil which causes the reaction to take place. Thus, option B is the correct answer.
Answer:
I picked B and got it correct.
Explanation:
Why does the Earth experience two high and two low tides each day?
Answer:
When the moon pulls on one side of Earth, the other side experiences high tide as well.
Explanation:
During the day, the moon revolves around Earth and when it does, it pulls on the oceans, causing high tide number one. But, when the moon pulls on one side of the Earth, the other side also bulges out, causing high tide number two. Think of this as a squishy ball. When you hold it with your index finger on the top and your thumb on the bottom and squeeze it, both sides of the ball bulge out. This is what happens to the Earth under the moon's gravitational pull.
‼️‼️NEED HELP ASAP)‼️‼️‼️
Structure of Cell Function:
Factory Part or Worker:
{Cell Structure Project}
>Compare Cell to Factory Or Worker<
Answer:
I don't know if this will help but here you go.
Answer:
I can help you but I only know of the functions mitochondrion site for respiration ribosomes site for protein synthesis nucleus controls all the activities of the cell cell membrane selects what enters and leaves the cell blogger apparatus body packaging transport glycoproteins and manufacture lysosomes I'm not sure about the cell wall I'm sorry this is all I can offer
Cilia and flagella are specialized structures attached to the cell membrane on some cells. The cilia look like little hairs while flagella are larger and whip-like. What is main the purpose of both the cilia and the flagella in cells
A. They move the cell from place to place in the environment.
* B.
They are defensive structures to protect the cell form predators.
* C.
They cause similar cells to link together to form larger organisms.
* D.
They help the cell membrane absorb nutrients from the environment.
Answer:
A
Explanation:
Both cilia and flagella are important locomotory organs. These organelles are specialized to cause the movement of the cell from one place to another in the environment. Thus, the correct option is A.
What are locomotory organs?Locomotion is the directional movement of cells that enables something to move from one place to another place. The word locomotion is derived from the Latin words loco which means place and motio means to move.
The anatomical structures which animals posses for the movement, includes cilia, legs, wings, flagella, or tails, these are referred to as the locomotory organs. These are present on the body of animals to defend themselves in extreme conditions, in capturing the food or prey. The cilia are hair-like organs which are present all over the surface of a cell where flagella is a large whip-like structure which are present single or in pair in a cell.
Therefore, the correct option is A.
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Images of unreplicated chromosomes that allow researchers to organize and identify each chromosome, as well as missing or extra chromosomes are called __________. Multiple Choice
Answer:
Karyotype
Explanation:
It's a method for organizing as well as an individuals collection of chromosomes
What happens to the size of an atom as you move down the periodic table?
A. The atomic radius varies within different groups.
B. The atomic radius stays the same.
C. The atomic radius increases.
D. The atomic radius decreases.
Answer:
D
Explanation:
Atomic radius is the distance from the atom's nucleus to the outer edge of the electron cloud. In general, atomic radius decreases across a period and increases down a group. Across a period, effective nuclear charge increases as electron shielding remains constant.
What aquatic fish will eat baby snails in an aquarium?
What aquatic fish will eat baby snails in an aquarium?
➪ Snail eating fishes are considered as the best way to get rid of snails in an aquarium. Instead of going through the tiring process of agonizing for removing them yourself, these fish do all the heavy lifting!
Here are some names of fishes that can do the job:
Yoyo loachStriped Raphael CatfishBala SharkCory CatfishGoldfishAnswer:
Bro why did my answer get removed even though it answered your question, even the other guy who answered AFTER me included the 2 fish I said
Explanation:
after an MRna molecules constructed from a DNA template which statement explains what happens next
Answer
A)
The mRNA becomes a double stranded molecule.
B)
The mRNA brings an amino acid to the nucleus.
C)
The mRNA contains a start codon that reads AUG.
D)
The mRNA travels from the nucleus to the ribosome.
E)
The mRNA is exported from the cell through the membrane.
Which label on the diagram to the right indicates the site of blood filtration?
A
B
C
Looking at the image and the labelings critically, the site of blood filtration, otherwise known as the glomerulus, is labeled as A.
The glomerulusThe kidney functions primarily in the process of excreting substances such as urine and toxic drugs.
The excretory substances in the blood are filtered off in the glomerulus of the kidney.
The structure marked A represents the glomerulus. C is known as the Bowman's capsule.
Thus, blood filtration happens at A.
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Answer:
A
Explanation:
edge 2022
Why are invasive species able to take over their new ecosystem?
A. They do NOT have any natural predators
B. The native animals don't have any defenses against them
C. They tend to be fast reproducers
D. All the above
WILL GIVE BRILLIANT
If a tectonic plate moves at arate of 2 km every 1 millionyears, how long would it take ahot spot to form a chain ofvolcanoes 100 km long?
Answer:
I would say that the answer is: 50 million years. It will take 50 million years.
Explanation:
Hope that helped!
Please make me Brainliest!
Whate are the main functions of the nervous system?
Answer:
Control of body’s internal environment to maintain ‘homeostasis’
Programming of spinal cord reflexes
Memory and learning
Voluntary control of movement
Explanation:
Photosynthesis provides the ingredients for cellular respiration and vice versa.
true or false?
Answer:
true
Explanation:
I had the same question
Each gene codes for one
а. organelle
b. type of RNA
С. protein
d. molecule
Answer:
c. protein
Explanation:
If not, then b. type of RNA
what is the main functions of the appendix
Answer:
The function of the appendix is unknown. One theory is that the appendix acts as a storehouse for good bacteria, “rebooting” the digestive system after diarrheal illnesses. Other experts believe the appendix is just a useless remnant from our evolutionary past.
PLEASE WRITE IN YOUR OWN WORDS THANK YOU.
1. Summarize the three parts of the cell theory.
2 .Name 3 structures that Eukaryotic and Prokaryotic cells have common.
3. Differentiate (give the differences) between prokaryotic cells and eukaryotic cells.
4. Give one example of a specialized animal cell. Explain one structural feature that help it to do it's special job.
5. Give one example of a specialized plant cell. Explain one structural feature that help it to do it's special job.
6. What are three factors that affect the rate of diffusion? explain the effect of each factor.
7. What is the difference between simple diffusion and facilitated diffusion?
8. Compare (give similarities and differences) between diffusion and osmosis.
9. Why are diffusion and osmosis are important for living organisms?
Answer/Explanation:
[1] The three parts of the cell theory is all organisms are made of cells. Cells are the smallest unit of life and new cells arise from existing cells.
[2] The three structure that Eukaryotic and Prokaryotic cells have common is plasma membrane, ribosomes, cytoplasm, and DNA.
[3] The difference between prokaryotic cells and eukaryotic cells is prokaryotic cells has no nucleus while, eukaryotic cells have a nucleus.
[4] One example of a specialized animal cell is Muscle Cell. Muscle cells bring parts of the body closer together. They contain protein fibres that can contract when energy is available, making the cells shorter.
[5] One example of a specialized plant cell is cell wall. Cell wall shapes, supports, and protects the cell. It prevents the cell from absorbing too much water and bursting.
[6] The three factors that affect the rate of diffusion is temperature, concentration gradient, size of the molecule.
The size of the molecule: The smaller the molecule such as gas, the faster the rate of diffusion while the larger the molecules (liquid) the slower the rate of diffusionConcentration gradient: Diffusion takes place as long as there is a difference between the concentration gradient of substances across a barrier. The more is the concentration difference, the higher is the driving force, the faster the rate of diffusion. When the concentrations of the substance on either side of the barrier become equal, the diffusion stops.Temperature:The higher the temperature is, the faster the speed of diffusion. Temperature increases the K.E. (kinetic energy) of a molecule and it helps to move the molecule faster and hence the speed of diffusion increases.[7] The difference between simple diffusion and facilitated diffusion is simple diffusion, the movement of particles occurs along the direction of the concentration gradient. While in facilitated diffusion, the movement of molecules can occur both in direction and opposite of the concentration gradient.
[8] The similarities between diffusion and osmosis is they both particles move from an area of higher concentration to one of lower concentration. The difference between diffusion and osmosis is diffusion can occur in any mixture, including one that includes a semipermeable membrane, while osmosis always occurs across a semipermeable membrane.
[9] Diffusion and osmosis are important for living organisms because diffusion and osmosis both even forces inside cells and organisms as a total, expand water, nutrients and necessary chemicals from areas that contain a high concentration to areas that contain a low concentration.
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Can ATP be produced in the absence of oxygen
Answer I believe it is yes, not 100% Sure though.
Explanation:
In the absence of oxygen, the net yield of ATP produced is 2 per glucose molecule. ATP is formed in the presence of oxygen in the process known as aerobic cellular respiration. This process occurs within mitochondria of eukaryotic cells.
A set of identical twins are together in an introductory biology class. The unit of study is DNA and its structure. The teacher describes the structure of DNA and its role in gene expression over the course of the lesson. Which components of the structure and expression of DNA would be identical for these particular twins that account for their similar appearance? Select ALL that apply. A) The timing of the DNA replication is identical for all cells in these students. B) The environmental influence of gene expression is identical for both students. C) The alleles that are carried on the chromosomes are identical for both students. D) All of the genes carried on the DNA are always expressed for both of these students. E) The order of the bases on the interior of the DNA molecule is identical.
In identical twins, alleles are identical and the order of the bases on the interior of the DNA molecule is identical (Options C and E). It is because genetic material is identical.
What are identical twins?Identical twins refer to individuals produced by the same zygote cell, i.e., they are monozygotic twins.
Since these individuals are produced by the same zygote cell, their genetic material (DNA) will be identical.
Identical twins are useful to understand the exact role of genetics and environment in a given phenotypic trait.
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Why are cells important to the study of living things?
Answer:
Cells are the basic building blocks of living things. ... Cells are the basic structures of all living organisms. Cells provide structure for the body, take in nutrients from food and carry out important functions
Explanation:
Explanation:
Cells are important because they are the things that make up your loung,liver and heart.
Which of the following diagrams correctly labels the Objective Lens, Focal Point, and the Eyepiece?
Answer:
a function and its inverse are reflected over the line y = x
Explanation:
What is the voltage on a battery if it produces 2 A of current through a 6 ohm
resistor?
Telecommunications networks include
within an organization.
Answer:
computer networks, the Internet, the public switched telephone network (PSTN), the global Telex network
Explanation:
is that what you wanted or is this Wrong? let me know:)
Answer:
its D) computers and telephones
Explanation:
I got it right on Edge
what is the difference about the touch receptors found in the lips in comparison to the receptors found on the knuckles?
A: there are more touch receptor fields in the lips
B: There are bigger touch receptor fields in the lips.
Answer: B is ur answer
Explanation:
How does an influenza virus cause symptoms of the flu to spread in the
human body?
O A. The proteins of the viral capsids kill all the cells around an
infected cell.
B. The virus particles produce toxins that poison cells throughout the
body
C. The new viruses formed inside one cell infect and quickly kill other
cells
D. The viral nucleic acid attaches to the DNA in a host cell and then
lies dormant
Answer:
The flu is caused by influenza viruses that infect the nose, throat, and lungs. These viruses spread when people with flu cough, sneeze or talk, sending droplets with the virus into the air and potentially into the mouths or noses of people who are nearby.
Explanation:
D) is the correct answer
hope it's help you
Answer:C
Explanation:
is actually C trust me guys
Which sentence from the section "Beyond Our Galaxy" BEST supports the idea that space is mysterious?
A
Our Milky Way galaxy is part of a neighborhood of 54 other galaxies.
B
Without gravity, Earth and everything else in our galaxy would fly off into space.
C
They also thought the stars on the inner orbits should move more slowly because they have less distance to travel.
D
However, dark matter is invisible, and scientists cannot see it with regular telescopes.
Systems Theory views organizations as analogous to living organisms. How do the Systems concepts of stability, growth, and adaptability describe Snak Pak Attak
The case of Snak Pak Attak demonstrates that the organization has adapted its processes according to the change in consumer desires and preferences, such as the need to reduce fat in the American diet.
What is systems theory?It refers to the understanding of an organization as an integrated set of activities that is changeable and develops according to new learnings, whose central objective is to provide value to stakeholders.
Therefore, the adaptation of the processes, products and services of the fast food chain Snak Pak Attak is consistent with the concept of an organization analogous to a living organism, as its strategic actions generated expansion and positioning in the market.
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AGCGTACCCTAC
AGCGCCCTACTT
Is this a frameshift mutation?
1.Yes, because the nucleotides/nitrogen bases moved
2.No,because the amino acids did not change
3.No,because the nucleotides/nitrogen bases did not move
Answer:
2 it would have been UCGCAUGGGAUG
Identify the tropical zones and the temperate zones.
Arctic Circle
Tropic of Cancer
equator
Tropic of Capricorn
Antarctic Circle
1
2
3
4
5
Tropical Zone
Temperate Zone
Answer:
Tropical zone: 3
Temperate Zones: 2,4
Arctic Zones: 1,5
The tropical zones and temperate zones are important concepts in geography and ecology because they influence the distribution and diversity of plant and animal species, as well as human populations and cultures.
Tropical zone: 3
Temperate Zones: 2,4
Arctic Zones: 1,5
What are the tropical zones and the temperate zones?The tropical zones and temperate zones are broad geographic regions of the Earth that are defined by their climate and location relative to the equator.
The tropical zones, also known as the tropics, are the regions of the Earth that lie between the Tropic of Cancer (23.5 degrees north of the equator) and the Tropic of Capricorn (23.5 degrees south of the equator). These regions are characterized by warm to hot temperatures year-round, high humidity, and frequent rainfall, resulting in lush vegetation and diverse animal life.
The temperate zones, on the other hand, are the regions of the Earth that lie between the Tropic of Cancer and the Arctic Circle (66.5 degrees north of the equator), and between the Tropic of Capricorn and the Antarctic Circle (66.5 degrees south of the equator). These regions are characterized by distinct seasonal changes in temperature and precipitation, with warm summers and cool to cold winters.
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What type of mutation is shown above?
1. Substitution
2.Insertion
3. Deletion
4. Silent (substitution)
Answer:
Silent (substitution)
Explanation:
The adenine mutated to thymine, but that did not affect the amino acid produced. This qualifies as a silent substitution.
What is the end result of meiosis 1?
(Please please help :(
a. Haploid gametes
b. Two haploid daughter cells c. Four haploid daughter cells
d. A genetically identical cell
Answer:
THE ANSWER IS B TWO HAPLOID DAUGHTERS CELLS
Explanation:
In contrast to a mitotic division, which yields two identical diploid daughter cells, the end result of meiosis is haploid daughter cells with chromosomal combinations different from those originally present in the parent.
The result of meiosis is four haploid daughter cells.
WHAT IS MEIOSIS:
Meiosis is a cell division that results in the formation of four daughter cells with each cell possessing a reduced number of chromosomes (by half). Meiosis is also called reduction division because it reduces the chromosome number of the parent cell by half. For example, human cells with 46 chromosomes (diploid) undergo meiosis to form four daughter cells with 23 chromosomes (haploid) each. However, the four daughter cells are genetically different from the parent cell.Therefore, the result of meiosis is four haploid daughter cells.
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