Answer:
The research is an example of evolutionary genetics and the mutation will result in fewer bacteria becoming resistant to the particular antibiotics.
Explanation:
A branch of science that comprises the study of genetic changes, which results in evolutionary modifications in organisms is known as evolution genetics. As certain bacteria had modified their DNA and had resulted in the development of antibiotic resistance.
Because of antibiotic resistance, some bacteria in which modifications in the DNA has occurred became resistant against certain kind of antibiotics and those antibiotics are no longer efficient in killing or preventing their growth.
Answer:
A researcher was studying mutations in bacteria. He found that certain bacteria had changes in their DNA that allowed them to be resistant to antibiotics. This research is an example of evolutionary genetics . The mutation will lead to all the bacteria becoming resistant to the specific antibiotics
Explanation:
PLATO answer
At the complete end of cellular respiration, how many molecules of ATP are produced? A. 15 B. 26 C. 38 D. 34
Answer:
At the complete end of cellular respiration, how many molecules of ATP are produced? A. 15 B. 26 C. 38 D. 34
Explanation:
AEROBIC CELLULAR RESPIRATION OR is the set of reactions in which the pyruvic acid produced by glycolysis is transformed into CO2 and H2O, and in the process, 36 molecules of ATP are produced.
The closest answer is between: C. 38 D. 34.
What happens during G 2 phase
During the second gap phase, or G 2start subscript, 2, end subscript phase, the cell grows more, makes proteins and organelles, and begins to reorganize its contents in preparation for mitosis.
What happens to chromosomes in G2 phase?S phase (DNA Synthesis) - Each of the 46 chromosomes are duplicated by the cell. III. G2 phase (Gap 2) - The Cell “double checks” the duplicated chromosomes for error, making any needed repair.
What happens in G1 and G2 phase?During the G1 phase, the cell shows first growth by copying organelles and making the molecular building blocks which are necessary for later steps. During the G2 phase, the cell shows the second growth by making proteins and organelles and beginning to reorganize its contents in preparation for mitosis.
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Who discovered The monomers of nuclei acids
Answer:
Phoebus Levene
Explanation:
Since he performed hydrolysis experiments on nucleic acid. He also discovered that DNA is composed as a series of monomers called nucleotide.
3. In addition to surface tension, what's responsible for driving ocean waves?
A. Thermohaline circulation
B. Centrifugal force
C. The Coriolis effect
D. Drag from wind
Answer:
The Coriolis effect- C.
Answer:
The answer is: C. The Coriolis effect.
Explanation:
The Coriolis effect affects the direction of rotation of various elements on the earth's surface such as hurricanes or water.
The answer is: C. The Coriolis effect.
If all of our cells have the same dna in them how is it possible that we have different cells such as stomach cells vs eye cells
Different cell types like stomach cells and eye cells arise from having the same DNA, but expressing different genes within that DNA, allowing for the unique structure and function required by each cell type.
Each somatic cell in our bodies generally contains the same DNA. However, this does not mean that all cells are the same. The reason we have different types of cells, such as those in the stomach versus the eye, lies in the process called gene expression. While every cell has the same genetic code, not all genes are active, or 'expressed', in every cell. Depending on the type of cell and its function in the body, only specific genes are turned on to produce the proteins needed for that cell's unique duties.
Hence, stomach cells will have a different set of active genes compared to eye cells, resulting in their distinct structures and functions. This specialization is orchestrated through a highly regulated process where certain factors determine which genes should be active and which should remain dormant, ensuring that the right proteins are produced at the right time for the proper function of each cell.
On a cold day, you go outside after a rainstorm and find pellets of ice on the ground. The pellets are all around 3 millimeters in diameter.
Which type of precipitation are these pellets?
A: snow
B: hail
C: sleet
D: freezing rain
answer is sleet; I just finished the assignment as well. Sorry for being late.
The pellets which are around 3 millimeters in diameter are called as sleets. Thus, the correct option is C.
What is Precipitation?Precipitation is any liquid or frozen water which forms in the atmosphere and then falls back on to the earth. Precipitation comes in many different forms, such as the rain, sleet, and snow. Along with the evaporation of liquid and condensation, precipitation is one of the three major parts of the global water cycle in the environment.
Sleet is the form of liquid which occurs when the snowflakes only partially melt when they fall through a shallow layer of the warm air on the surface. Sleets are slushy drops which refreeze as they next fall through a deep layer of freezing air which is present above the surface of land, and eventually reach the ground as frozen rain drops that bounce on impact.
Therefore, the correct option is C.
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An organism's reproductive strategy includes all of the following except
A. The length of time parental care is given
B. The amount of energy expended in producing offspring
C. The number of offspring produced
D. The way that a species hides from pray
Answer:
D
Explanation:
Reproductive strategy refers to the way organisms of a species mate and raise their offspring in a natural strategy to increase their reproductive success. Natural selection will always choose the method that improves biological fitness. There are two main types of reproductive strategies; R-strategists and K-strategists. The former involves reproducing a lot of offspring but with little parental care. The latter involves reproducing few offsprings but with greater parental care.
In biological terms, an organism's reproductive strategy involves factors such as energy used in offspring production, number of offspring, and parental care time. The way species hide from prey is related to survival, not reproduction.
Explanation:An organism's reproductive strategy is defined as the set of behaviors that have evolved to maximize the reproductive fitness or success of an organism. This strategy includes factors like the amount of energy expended in producing offspring, the number of offspring produced, and the duration of parental care provided to the young ones. However, the way a species hides from prey is not considered a part of the reproductive strategy because it pertains more to an organism's survival strategy and not directly related to reproduction.
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A group of scientists are studying the effects of different fertilizers on the growth of pea plants. They began their study with 10 pea plants. They gave each plant a different type of fertilizer and tracked their growth over a period of 2 months. What's the independent variable in this experiment?
Answer:
Fertilizers
Explanation:
The independent variable is the variable that is manipulated or changed to trigger a change on the dependent variable. The dependent variable is the variable that is not manipulated, but it changes depending on the independent variable. In the case of this experiment, the scientists wanted to see if the different fertilizers have an effect on pea plants' growth. To determine this, they would have to use different types of fertilizers, so this meanst hat the fertilizers will be changed.
The forensic biologist _____ by the American Board of Criminalistics.
A. may be certified if requirements are met
B. must be certified if requirements are met
C. is paid
Answer:
The most appropriate answer option is B. must be certified if requirements are met.
Explanation:
The forensic biologist must be certified if requirements are met by the American Board of Criminalistics.
Option B seems to be the most appropriate answer to complete the given statement.
Forensic Science requires specific expertise for every field. Therefore, forensic biologists have certain requirements that they need to meet in order to achieve professional certification.
which type of transport is responsible for oxygen entering into blood cells?
A. Vesicle
B.Passive
C. Facilitated
D.Active
Answer: B.Passive
Answer:
Diffusion transport is responsible for oxygen entering blood cells because when the oxygen concentration in the alveoli in the lungs are too high it diffuses with the red blood cells by giving it oxygen and receiving carbon dioxide.
Explanation:
Passive or diffusion transport is responsible for oxygen entering into blood cells.
How does oxygen enter blood cells?Simple Diffusion also known as passive transport is how oxygen gets into blood cells. Because it is traveling from a high concentration to a low concentration, oxygen diffuses from the alveolus into the blood and blood cells as oxygen-depleted blood passes through a capillary in an alveolus (plural of alveoli).The lungs' alveoli release oxygen into the RBCs, where it diffuses and binds to hemoglobin. Four oxygen molecules can be bound to one hemoglobin molecule (O2).learn more about Passive transport here:
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4. Your ability to steer a vehicle depends partly upon the condition of the vehicle's suspension.
A. true
B. false
Answer:
THe answer is true
Explanation:
Answer:
True
Explanation:
If your suspension is not working properly your tires will not function as well and it can become difficult to steer
Which animal adaptation happened before the others?
A. Reproduction on land
B. Development of a coelom
C. Bilateral symmetry
D. Lungs
Answer:
C. Bilateral symmetry
Explanation:
Just before the Cambrian explosion, approximately 600million years ago, multicellular aquatic animals are thought to have developed new body plans. As a result they split into two groups of organisms which were notably radially symmetrical and bilaterally symmetrical. These early bilaterally symmetrical animals were simple organisms without a body cavity called a coelom; further evolution, led to the development of complex coelomates. Eventually, land-dwellers capable of respiring out of water with the aid of lungs emerged, and subsequently, their adaptations allowed for reproduction in their new habitats.
Bilateral symmetry is the animal adaptation that happened before the others listed (Reproduction on land, Development of a coelom, Lungs).
Bilateral symmetry is a fundamental characteristic in the evolution of animal body plans and refers to the arrangement of body structures into two similar halves, with a distinct front and back, and a top and bottom. This symmetry allows animals to be more streamlined and have more precise movements, making it advantageous for survival and locomotion.
Bilateral symmetry likely evolved early in the history of animal life, providing a basis for more complex body plans to develop later. It allowed for the evolution of specialized sensory organs at the anterior end, facilitating better detection of the environment and predators. Additionally, it enabled animals to develop a head region with concentrated nervous tissue, leading to the development of more complex nervous systems and improved sensory capabilities.
Reproduction on land, development of a coelom (body cavity), and lungs are adaptations that came later in the evolutionary timeline. Moving from aquatic to terrestrial environments required adaptations such as the development of specialized reproductive structures to prevent desiccation and ensure successful reproduction on land. The development of a coelom provided a space for the internal organs to be organized and function more efficiently. Lungs evolved as a respiratory adaptation to extract oxygen from the air in terrestrial environments, allowing animals to colonize new habitats.
In summary, bilateral symmetry was one of the earliest and foundational animal adaptations that allowed for further evolutionary developments in body plans, locomotion, and sensory abilities, which later led to adaptations for reproduction on land, coelom development, and the evolution of lungs.
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Which of the following molecules stores a cell's hereditary information?
Final answer:
DNA, or deoxyribonucleic acid, is the molecule that carries a cell's hereditary information. It is structured as a double helix and consists of nucleotides that encode genetic instructions, ensuring the faithful transmission of these instructions across generations.
Explanation:
The molecule that stores a cell's hereditary information is deoxyribonucleic acid (DNA). DNA must store a large amount of information critical for synthesizing proteins essential for the functioning of living organisms. Each chromosome within a cell's nucleus is composed of DNA and proteins. The DNA contains genes, which are segments that carry genetic instructions. The hereditary information in DNA is expressed through the synthesis of ribonucleic acid (RNA). Both DNA and RNA are nucleic acids that consist of nucleotides, including a phosphate group, a nitrogenous base, and a sugar.Deoxyribonucleic acid (DNA) is critical because it ensures the faithful transmission of information from one generation to the next. This transmission is extremely accurate due to DNA's structure and replication mechanism. The historical contributions of scientists like Alfred Hershey and Martha Chase have confirmed DNA's role as the hereditary molecule, and further evidence tells us that all cellular life on Earth uses DNA as the storage and transmission medium for genetic information.The structure of DNA enables it to store coded information in a double helix configuration, where nucleotides are paired and held together by hydrogen bonds, forming a strong and stable molecule that can reliably carry genetic information over generations.A taxon ending in ophy
Answer:
indicating the organism is a plant
Explanation:
Please mark brainliest!
Also I know all the answers to the test so I can help you if you ask other questions
What are three ways plastics negatively affect oceans
Apex semester 2
5.1.3
Plastics negatively affect oceans by causing entanglement of marine life, ingestion of plastic leading to health issues for marine organisms, and the breakdown into microplastics which carry toxins and enter the food chain.
There are three ways plastics negatively affect oceans, causing significant harm to marine ecosystems and biodiversity. First, plastics lead to entanglement, where marine animals become trapped in items such as old fishing nets or six-pack rings, leading to injury or death. Second, plastics present a danger when ingested by marine organisms who mistake it for food, potentially causing choking, internal injuries, and a reduced capacity for ingesting actual nutrients.
Third, as plastics break down into microplastics, they become pervasive in marine environments, entering the food chain and often carrying toxic substances which subsequently accumulate in organisms, including humans.
What are the importance of bacteria in food production?
Final answer:
Bacteria are essential in food production, serving a vital role in the fermentation process of various foods. In addition, they contribute to the digestion process, aid in nutrient recycling in ecosystems, and can be utilized to produce medicines.
Explanation:
Bacteria play a crucial role in food production due to their ability to ferment and break down organic compounds. One example is the production of cheese, where bacteria convert milk sugars into lactic acid, causing the milk to curdle and form cheese. Bacteria are also used in the fermentation process of other foods like yogurt and sauerkraut. Additionally, bacteria in the human digestive tract aid in digestion by breaking down food and producing essential vitamins.
Furthermore, bacteria are important decomposers in ecosystems, recycling nutrients such as nitrogen back into the environment. In the laboratory, bacteria can be manipulated to produce useful materials and medicines. For instance, insulin, used to treat diabetes, can be produced using bacteria as tiny factories.
What are strength and weaknesses of photosynthesis?
Answer: Answer down below
Explanation:
A good reason to have photosynthesis: helps flowers, plants and grass growHelps us have crops to eat (and for farmers to sell)If we lost photosynthesis (the not-so-great part): plants wouldn't grow like they are supposed to.They might even die offYou won't be able to have enough healthy herbs and vegetables to fight off the bad things in life.
The model’s strength is that it clearly shows that the process is quite complicated and that it takes place in different parts of the chloroplasts. It also shows most of the major molecules produced. But it doesn’t show the major steps of the Calvin cycle, so that’s a weakness of the model. It also doesn’t clearly show the process of the electron transport chain.
PLATO
Which statement describes what happens to elements during radioactive decay?
A-They release energy.
B-They gain new particles.
C-They lose energy at a varying rate.
D-They have a consistent number of particles.
Answer:
The correct answer is option A-"They release energy".
Explanation:
The phenomenon of radioactive decay, also known as radioactivity or nuclear radiation, occurs when an unstable atomic nucleus emits radiation and loses energy and mass in the process. The elements during radioactive decay release energy and mass trying to reach a stable form. The material that has the unstable nucleus is considered radioactive.
Answer:
Option (A)
Explanation:
Radioactive decay is usually defined as a process by which an unstable nucleus of an atom continuously disintegrates into a stable nucleus, resulting in the liberation of a large amount of energy as well as matter.
The radioactive substances undergoes radioactive decay and these released energy is very harmful as they are emitted in the form of ionizing radiation.
These process of radioactive decay is commonly known as radioactivity.
Thus, the correct answer is option (A).
How does energy travel in an ecosystem?
Answer:
Through the food chain.
Explanation:
Answer:
Energy passes through one organism to the next. Autotrophs, like plants, absorb energy from the sun and make their own food. Then heterotroph herbivores, like a rabbit, consume the plants and only gain 1/10 of the energy that plant had. Next comes a carnivore or omnivore heterotroph, like a snake, they recieve 1/10 of the energy of their food. And then another carnivore or omnivore, like an eagle, will receive 1/10 of the energy of their food.
Explanation:
why is the sun hot and can burn you if you get to close
Hello There!
The sun is a star and our nearest star. The sun is closer than almost all stars and that is why it is so big. The sun is so hot and bright because it's a huge ball of fire. Even though the sun is around 92 million miles away, it is still extremely bright. It will burn you if you get close because your body can not sustain an average temperature its just way too hot.
An element has an atomic mass number of 16 and an atomic number of 7.
Question 3 of 10
2 Points
Scientists draw conclusions based on evidence that has been gathered
through observation, experience, and experimentation. Which of the following
terms best describes this kind of evidence?
A. Empirical
B. Biased
C.Peer-reviewed
D. Factual
SUBMIT
Answer:
The answer is A Empirical
ANSWER STAT PLEASE
5. A red and a white snapdragon are crossed, and their offspring is pink. This is an example of
A. Mendel's law of independent assortment.
B. incomplete dominance.
C. codominance.
D. Mendel's law of dominance.
Answer:
. A red and a white snapdragon are crossed, and their offspring is pink. This is an example of incomplete dominance.-(B.)
The offspring of a red and white snapdragon being pink is an example of incomplete dominance.
Explanation:The offspring of a red and a white snapdragon being pink is an example of incomplete dominance. In incomplete dominance, neither allele is dominant, and the heterozygous individual displays an intermediate phenotype. This means that the offspring inherit both the red and white alleles from their parents, resulting in pink petals for the snapdragons.
How does an ecosystem change during succession?
A it has fewer species
B it becomes less stable
C it become smaller
D it has more biodiversity
Answer:
the answer would be (D) it has more biodiversity.
Explanation:
Ecological succession is what makes up all the different varieties of species in plants and animals. It changes it by having earths ecosystem be more diverse biologically. Hope this helps!
Role of RNA in gene expression is to
Answer:
serves as an intermediate molecule that translates the instructions from DNA into protein.
Explanation:
Answer:
The correct answer is -
In transcription- code the information present in DNA into an mRNA molecule.
In translation- move to the cytoplasm and translate the code into the amino acid sequence with the help of tRNA and rRNA.
Explanation:
Gene expression is the process in which the molecule in which all information present in DNA, first transcribed to RNA and then move to the cytoplasm to translated from RNA to protein with the correct sequence of the amino acid.
RNA plays an important role in gene expression. Each step involves different RNA molecules such as mRNA that is a transcribed RNA molecule that carries information from the nucleus to cytoplasm and binds with another molecule of RNA known as tRNA that translates coded mRNA to the protein.
Thus, the correct answer is -
In transcription- code the information present in DNA into an mRNA molecule.
In translation- move to the cytoplasm and translate the code into the amino acid sequence with help of tRNA and rRNA.
This chart shows the types of ground tissue and their functions.
Parenchyma
Collenchyma
Sclerenchyma
A
for food production and
storage
for strength and support
For protection and
support
B
For secretion of substances
like nectar
For conduction of materials
throughout the plant
For healing of plant
parts
C
For strength and support
For protection and support
For food production and
storage
For healing of plant parts
For protection and support
For strength and
support
Which row (ABC or D) best matches each ground tissue with its function?
Answer:
For food production and
storage.
For strength and support
For protection and
support. (Ans. A)
Explanation:
Parenchyma: These cells are responsible for the formation of many other tissues and cells. These cells are mostly found in the soft part of the plant. Cell shapes of these cells are isodiametric and cell wall (composed of cellulose) thin in structure. Between these cells intracellular space is present. Main function of these cells are storage of food, in photosynthesis and exchange of the gaseous particles.
Collenchyma: The epidermal cells present on plants are made up of these cells. These cells are found in the petioles, leaves, and stems. Cell are elongated in shape and cell wall (composed of cellulose and pectin) is uneven. Less intracellular space present between the cells. Main function of these cells are providing mechanical support.
Sclerenchyma: Hard and outer parts of the plant made up of these cells. These cells are present in the mature parts of the plant. Cells are elongated, fiber in shape and cell wall (composed of lignin) hard and thick. Intracellular space is not present in these cells so these are tightly packed. Main function of these cells are providing protection and support.
Answer:
A the other person does too much explanation
Explanation:
Which process is not a way in which cells maintain homeostasis?
A) Communicating with other cell
B)Taking in the molecules they need
C)Breaking down Unneeded molecules
D)Changing their external environment
Answer:
Changing their external environment
Explanation:
Answer: D) Changing their external environment
Explanation: cells cannot change their external environment to maintain homeostasis. They communicate with other cells via cell signaling, they take up nutrients for sustainability and growth, cells also breakdown unwanted molecules as a way of waste management.
But cells don't change their external environment to maintain homeostasis.
what will most likely happen to a plant that does not receive enough CO2
Answer:
the Calvin Cycle will produce less glucose
Explanation:
apex
need help on this !!
In what part of a chloroplast does glucose production occur?
A. ATP synthase
B. Photosystem II
c. Photosystem
D. Stroma
Hello There!
The part of the chloroplast that glucose production occurs in is called
"The Stroma"