Answer:
bacteria
Explanation:
They took a gene from a bacterium that provided resistance to the antibiotic kanamycin, inserted it into a plasmid and then induced other bacteria to incorporate the plasmid.
Bacteria were initially used for genetic engineering.
They are used due to the relative ease of modifying their chromosomes. This ease made them important tools for the creation of other GMOs.What are GMO?A genetically modified organism (GMO) is an animal, plant, or microbe whose DNA has been altered using genetic engineering techniques.GMOs are foods that have been modified using genetic techniques. GMO foods are as healthful and safe to eat as their non-GMO counterparts. Some GMO plants have actually been modified to improve their nutritional value.Hence, A option is correct.
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What happens when the fur of a otter is soiled or clumped
Because they rely on their dense fur for insulation from the chilly ocean water, sea otters are particularly vulnerable to the detrimental effects of an oil spill. If a sea otter swims into an oil spill, its fur becomes soiled and loses its insulating qualities, allowing water to penetrate to its skin, causing hypothermia and ultimately, death.
hope this helps?
Soiled or clumped fur in an otter can compromise its insulation by losing trapped air bubbles, increasing the risk of reaching thermal equilibrium with cold water and leading to potential hypothermia.
When the fur of an otter is soiled or clumped, it can lose its insulating properties. The otter's fur is special because it traps air bubbles, which provide insulation against the cold water. If the fur becomes clumped or soiled, these air bubbles can be lost, making the fur less effective at insulating the otter. Without the trapped air, the otter could reach thermal equilibrium with the cold water more quickly, which is dangerous as it could lead to hypothermia and be life-threatening for the animal. Furthermore, otters have hydrophobic lipids in their fur that help to protect them from the elements by repelling water and keeping their fur from getting waterlogged.
What are two ways that harvesting algae from the ocean may benefit human society? How might the harvest of algae negatively impact the ocean communities where the algae grows? How could this be prevented?
Answer: Hope I help!!!!!b:D
Explanation: Well, things eat the algae, and if algae is taken from an ecosystem, then it could unravel. Another thing, depending on the species, algae helps break things down like waste and clean the water!
Answer:
The harvest of algae allows them to be used for food and medicine production, as they are a source of proteins, vitamins and minerals. In addition, this harvest reduces the risks of the process called "red tide", which occurs when the algae population becomes so large in the aquatic environment, that it ends up throwing toxic elements on it, which negatively affects marine life.
The downside of harvesting algae is that harvesting can be done in a way that drastically reduces the population of algae in the aquatic environment and harms animals that have algae as their main food source. In addition, algae are responsible for much of the oxygen in the atmosphere, when harvesting it aggressively, it can impair the concentration of oxygen in the atmosphere. To avoid these problems, it is necessary to harvest the algae in a conscious and sustainable way.
Explanation:
Algae can be described as eukaryotic, autotrophic organisms that can be unicellular or multicellular, present in most rivers and oceans. Despite being very similar to plants, algae are not considered plants, but a totally different and intriguing organism. The algae make photosynthesis and are largely responsible for the oxygen available for our breathing.
Which of these is an example of science?
avoid black cats before important events
find out how temperature affects air in a balloon
find out the position of stars to predict future events
use bumps on a human head to determine personality traits
B. The first one is superstition, the third is astronomy, and the fourth is fake news.
Find out how temperature affects air in a balloon - this is an example of science.
How does temperature affect the air in a balloon?The atmosphere inside the balloon when warmed, becomes lighter and goes up. The amount of lift exists dependent on the distinction between the temperature of the air inside the balloon and the air outside. When it exists cooler, this difference exists greater than in hot weather. When heating resumes the lighter air still tries to go up lifting the balloon. The principle stands the density of the air declines as the temperature increases. The temperature influences balloons because of the Ideal gas law.
The correct answer is option B.
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Plz help asap} How is breathing related to cellular respiration? (Hint: Think about both the reactants and the products of cellular respiration.)
Answer:
Cellular respiration is related to breathing because breathing provides compulsory oxygen for the process of cellular respiration to happen and cellular respiration is a process where cells obtain energy. In time of inhalation, the oxygen molecules are necessary for cellular respiration. During the exhalation process, the CO₂ that is produced by cellular respiration leaves the body via nose or mouth. Breathing and cellular respiration are critically important because without either one of the processes, the other cannot take place
Explanation:
Answer:
Cellular respiration is not the same thing as breathing, but they are closely related. When you breathe in, you take in the When you breathe in, you take in the oxygen your cells need for cellular respiration. When you breathe out, you get rid of the carbon dioxide that your cells produce during cellular respiration.
Explanation:
Is it possible to change a scientific theory?
A. Yes, scientific theories are constantly being changed in major ways.
B. Yes, but changes are usually small and are made only if important new evidence is found.
C. No, scientific theories are never changed and scientists always believe they are correct.
D. No, scientific theories are never changed, but they are frequently replaced by new theories.
Answer:
A
Explanation:
You could always change a theory a theory is a belief
Answer:A
You could always change a theory
Explanation:
HOPE THIS HELPS!
Identify and describe an action carried out by humans that could lower Carbon dioxide levels in the atmosphere.
Plant trees, trees rid of CO2 and replenish O2 in the enviroment through a process called photosynthesis.
Match the following vocabulary words with the correct definition
1 cell that has a membrane-bound nucleus
2 cell that has does not have a membrane-bound nucleus
specific sequence of DNA nucleotides that carry hereditary
eukaryote
4 genetic characteristic of an indihadual
5 male and female reproductive cells
union of gametes to form a cell that will develop into a new
individual
7 cell produced as a result of cell division
prokaryote
METOLESON
ASK FOR HELP
1. Eukaryotic cell
2. Prokaryotic cell
3. RNA
4. DNA
5. Male: Gametes, or sperm. Female: Eggs or Ovum
6. Meiosis
8. Zygote
Eukaryote : Organism which has cells that contain a nucleus.
Prokaryote : Does not contain a Nucleus.
The terms are matched with their definitions as follows: 1. Eukaryote is a cell with a membrane-bound nucleus. 2. Prokaryote is a cell without a membrane-bound nucleus. 3. The term incorrectly spelled as 'METOLESON', referring to 'gene', relates to a specific DNA sequence carrying hereditary. 4. Trait refers to a genetic characteristic. 5. Gametes are male and female reproductive cells. 6. Fertilization refers to the union of gametes. 7. A daughter cell comes from cell division.
Explanation:Based on the information provided, I will match these biology terms with their corresponding definitions:
Eukaryote matches with 'cell that has a membrane-bound nucleus'Prokaryote matches with 'cell that has does not have a membrane-bound nucleus'METOLESON seems to be a typo, but if it refers to 'gene', it would match with 'specific sequence of DNA nucleotides that carry hereditary'4 represents a Trait (Assumed from context) matches with 'genetic characteristic of an individual'5 represents Gametes matches with 'male and female reproductive cells'6 represents Fertilization (Assumed from context) matches with 'union of gametes to form a cell that will develop into a new individual'7 represents Daughter cell matches with 'cell produced as a result of cell division'Learn more about Cell Biology Vocabulary here:https://brainly.com/question/14161890
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Which statement about natural selection is true?
A.)Natural selection and evolution are two terms for the same phenomenon.
B.)Natural selection is an outdated theory to explain how evolution took place.
C.)Natural selection is the process by which organisms with more beneficial traits are more likely to survive and reproduce.
D.)Natural selection is the process by which organisms develop variation in traits, which gives them a better chance of survival.
Answer: C). Natural selection is the process by which organisms with more beneficial traits are more likely to survive and reproduce.
Explanation:
Natural selection is a natural phenomena which involves differential survival and reproduction of individuals who have better phenotypic traits over others. Such organisms survive and reproduce in adverse environmental conditions. Thus nature selects the individuals with better traits.
what was the purpose of the apollo space missions
A. to explore mars
B. to explore the moon
C. to explore Saturn
D. to explore Jupiter
Moon! The Apollo missions were to go to the moon hope this helps
The purpose of the Apollo space mission was to explore the Moon and conduct scientific experiments. The missions provided significant scientific and engineering knowledge about the Moon's geology, composition, and the effects of space travel on human health. Hence option B is correct.
What were the Apollo space missions?The Apollo space missions were a series of space exploration missions conducted by NASA between 1961 and 1975 with the goal of landing humans on the Moon and returning them safely to Earth.
The Apollo program was designed to achieve President John F. Kennedy's goal of landing a man on the Moon by the end of the 1960s and was the third United States human spaceflight program.
They also served as a symbol of American technological and economic superiority during the Cold War. The program ended after the Apollo 17 mission in 1972, and since then, no humans have returned to the Moon.
Hence option B is correct.
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In fruit flies, a specific gene mutation causes the wings to become malformed. These wings are called vestigial because they do not function properly. The mutated allele for vestigial wings (v) is recessive to the allele for functioning wings (V). Two fruit flies that are heterozygous for wing shape are crossed, resulting in many offspring.
You get VV, Vv, Vv, and vv
Which best describes how blood pressure is measured and why it is important?
A)Blood pressure measures pressure on the arteries and can be an indicator of an unhealthy cardiovascular system.
B)Blood pressure measures pressure on the veins and can be an indicator of an unhealthy urinary system.
C)Blood pressure measures pressure on the capillaries and can be an indicator of an unhealthy nervous system.
D)Blood pressure measures pressure on the heart and can be an indicator of an unhealthy endocrine system.
Blood pressure measures the pressure on the arteries and is a key indicator of cardiovascular health. High blood pressure can lead to numerous health issues such as heart disease, stroke and kidney disease. Regular monitoring is vital for maintaining healthy blood pressure levels.
Explanation:The correct answer is A) Blood pressure measures the pressure on the arteries and can be an indicator of an unhealthy cardiovascular system. Blood pressure is defined by the force that blood exerts on the walls of the arteries as it is pumped by the heart. When blood pressure is too high, it can put extra strain on the arteries and the heart, leading to conditions like heart disease, stroke, kidney disease, and other health problems. That's why it is important to regularly monitor blood pressure.
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Liquid water absorbs energy from the sun. Some of the molecules on the surface gain enough energy to break away into a gaseous state. What process is described here?
A. evaporation
B.condensation
C.precipitation
D.transpiration
Answer:
A
Explanation:
evaporation is a process that liquid turns into gas
Answer:
Evaporation (choice A) is the only answer that makes sense in the context of the question.
Explanation:
The line, "Some of the molecules on the surface gain enough energy to break away into a GASEOUS STATE," reveals the answer in that it notes how the water turns into a gas -- just like it does in the evaporation stage of the water cycle.
When the cell engulfs large fragments of matter, it is called _____. Select all that apply. endocytosis exocytosis pinocytosis phagocytosis
Final answer:
The correct processes when a cell engulfs large fragments of matter are called endocytosis and phagocytosis. Phagocytosis is the cellular process of engulfing solid particles, while pinocytosis takes in liquid substances. Exocytosis is the opposite process and is not a correct answer to the question.
Explanation:
When a cell engulfs large fragments of matter, the processes involved are called phagocytosis and endocytosis. Phagocytosis, a form of endocytosis, is like the cell eating. It is used by cells such as immune cells to engulf and digest large particles like invading pathogens or debris. This process involves the cell membrane surrounding the particle, and then pinching off to form a vesicle that's brought into the cell.
Another form of endocytosis is pinocytosis, also known as cell drinking, where the cell takes in fluid containing dissolved substances instead of large particles.
It's important to note that exocytosis is the opposite process, in which materials are expelled from the cell, and should not be confused with endocytosis. Therefore, the correct answers for the cell engulfs large fragments of matter are endocytosis and phagocytosis
Please answer this I could use all the help I can get
Answer:
Temperature
Explanation:
Temperature, when being graphed, is ALWAYS the independent variable.
Answer: temperature
Always independent as other said
need HELP!!!
31. Which of the following is not true about RNA?
A) it is single stranded
B) it has 4 nitrogenous bases
C) it has a ribose sugar
D) it has thymine instead of uracil
E) it helps make proteins
Answer:
it is D. it has thymine instead of uracil
Explanation:
The incorrect statement about RNA is that it has thymine instead of uracil. In RNA, uracil is the base that pairs with adenine, not thymine.
Explanation:The statement that is not true about RNA is D) it has thymine instead of uracil. The truth is that in RNA, thymine is replaced by uracil. This means that uracil pairs with adenine in RNA, not thymine. So while DNA uses adenine, guanine, cytosine, and thymine, RNA uses adenine, guanine, cytosine, and uracil. The other statements about RNA being single-stranded, having 4 nitrogenous bases, containing ribose sugar, and helping to make proteins, are all accurate.
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Explain how scientists use geologic time to determine the age of landforms.
Answer: every time there is more information it causes the scientist to look for more information
Hope it helped!
Answer:
As explained below.
Explanation:
The age of the earth is derived from studying the geologic time scale of the earth by the carbon dating and analysis of the fossils. Rocks on the earth are sufficient enough to show the age of landforms. The first attempt to make the geologic time scale was done in 18 C.E thus the earth was divided into the Primary, Secondary, Tertiary, and Quaternary landforms. It was William Smith who gave the successive period framework and suggested virtually finite earth. The primary period divided into Precambrian eon which included Hadean, Archean, Proterozoic periods. Which later on developed as Cambrian, Ordovician, Silurian, and Devonian, Carboniferous and Permian periods and the development of the secondary landforms the splitting of super landmasses and the formation of the tertiary period as the Triassic, Jurassic and the Cretaceous periods. The quaternary period stated with the Miocene, Pliocene, Pleistocene and continued to the present Holocene. From 4600-635 million years, and then tp peent 0.0042 million years.
Hello, hope u guys are having a good day! I need some help on this science! Thank you!
Water cycle.
Which of these stages of the water cycle were you able to observe in your model?
What is the energy source in your model and what does it represent?
Did you observe evapotranspiration in your model? If yes, where? If no, how could your have demonstrated it?
Where in your model does condensation occur more rapidly? How do u know?
Please guys, I have been stuck on this science portfolio for ever now, and I need help, I don't understand, I researched everything, my last choice is you guys! Thank you!
1. Which part of the activity simulated evaporation? Evaporation was simulated as the 'ocean' was heated by the lamp.
2. Which part simulated condensation? Condensation occurred as the water vapor from the ocean cooled on the lid of the shoe box near the petri dish of ice.
3. Which part simulated precipitation? The drops of water falling from the lid of the shoe box simulated precipitation.
4. What is the energy source and what does it represent? The energy source was the lamp, which represented the sun.
5. What elements of the water cycle are not represented? Transpiration, infiltration, sublimation, and percolation were not represented.
6. How could we demonstrate transpiration in this activity? We could demonstrate transpiration by adding live plants to the shoe box.
7. Would condensation occur in the box without the ice? Why or why not? Condensation might occur over the mountains but not as quickly. The ice provided a greater temperature difference, forcing the vapor to condense.
8. After observing this activity, explain why water is considered a renewable resource. Water is continually recycled through the various parts of the water cycle.
9. The system you observed/constructed is a model of the way the actual water cycle works. Why might scientists use a model like this in their research into the water cycle in the real world? Can you think of any reason that using such models might be a problem?
In a model of the water cycle, you're able to observe evaporation, condensation, and precipitation, with an energy source like light representing the Sun. Evapotranspiration can be demonstrated with a plant, and condensation occurs more rapidly in cooler areas.
Explanation:From your question, I infer that you've created a model of the water cycle. Typically, in a water cycle model, you can observe stages such as evaporation, condensation, and precipitation. Your energy source in the model could be light (representing the Sun), which fuels the evaporation process.
Evapotranspiration, which combines the processes of evaporation and transpiration (water loss from plants), might not be observable unless you incorporated living plants in your model. You could introduce a small plant in your model to demonstrate this process.
Condensation, the process by which water vapor turns back into liquid water, often happens more rapidly in cooler areas in your model. You could identify this by observing where droplets form the fastest.
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Gems are ___
A. rare
B. common
C. not true minerals
D. not valuable
A ) rare because gems are very hard to find.
How many chromosomes do you get from your parents?
23 chromosomes from each parent, which means 46 chromosomes in total
The thermosphere is the hottest layer because it
Answer:
because there is not a lot of anything in that layer so anything that comes into it creates a reaction, heat
Explanation:
Because there are relatively few molecules and atoms in the thermosphere, even absorbing small amounts of solar energy can significantly increase the air temperature, making the thermosphere the hottest layer in the atmosphere"
how did your family or parents affect your adolescent development? explain.
Answer:
Explanation:
With a young, adolescent brain, you can easily be guided or persuaded to believe or do such things as the people around you. What the people around you do, good or not, it can affect you and make you believe from a young age that that is what you should be doing or believing in life. hope this helps
Ok so I don’t know if you want me to answer for myself, please specify, thanks!
Which of the following scenarios would prevent a population from being in Hardy-Weinberg equilibrium?
A. The population is evolving, and natural selection is favoring one allele over another.
B. The population is stable, but younger generations of the population have a different allele frequency.
C. The population mates at specific times of the year, causing the population to fall out of equilibrium at that time of year.
D. The population will fall out of Hardy-Weinberg equilibrium if natural resources such as food are limited.
The answer is A.
the Hardy–Weinberg equilibrium states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences.
hope this helps:)
Answer:
(A) The population is evolving, and natural selection is favoring one allele over another.
Explanation:
According to Hardy-Weinberg equilibrium, the frequency (genetic variation) of population remains stable from one generation to the next generation.
The population will follow Hardy-Weinberg equilibrium if the population size is large, random mating, no natural selection , absence of mutation and gene flow.
If the population is evolving and natural selection favors an allele over another, this scenario will prevent that population to follow Hardy-Weinberg equilibrium.
Thus, the correct answer is option(A).
Identify which kind of ground tissue is being described by each statement.
Has hard, double-walled cells
Produces food and auxins
Is strong but flexible
Answer:
1. sclerenchyma
2. Parenchyma
3. Collenchyma
Explanation:i just did it so it makes sense
Answer:
sclerenchyma
Parenchyma
Collenchyma
Explanation:
it was on my quiz i just took
30 Points!!! Plz answer!
Which is the correct definition of antibodies? A. A preparation of dead or weakened pathogens that is injected into the body to cause the immune system to produce antibodies. B. Proteins that attach to antigens, keeping them from harming the body. C. Substances that send the immune system into action. D. Special white blood cells in the lymph.\\
Answer:
a blood protein produced in response to and counteracting a specific antigen. Antibodies combine chemically with substances which the body recognizes as alien, such as bacteria, viruses, and foreign substances in the blood
Explanation:
Enormous amounts of carbon are stored in fossil fuels when humans burning fossil fuels large amounts of carbon dioxide are released rapidly into the atmosphere what is the main scientific concerned about having too much carbon dioxide in the atmosphere
Answer: Not have breathable air.
Explanation:
When did oxygen levels start to decline from 35 percent down to today's levels?
A. Before the Silurian period
B. After the Triassic period
C. During the Permian eriod
D. After the Carboniferous period
Oxygen levels start to decline from 35 percent down to today's levels D. After the Carboniferous period
Further explanationOxygen levels started to decline from 35 percent down to today's levels about 95 million years ago.
The Carboniferous is a geologic period and system that spans 60 million years from the end of the Devonian Period 358.9 million years ago, to the beginning of the Permian Period, 298.9 Mya. The Carboniferous is occurred 358.9 (+/- 0.4) million years ago - 298.9 (+/- 0.15) million years ago
Whereas the Permian spans 47 million years from the end of the Carboniferous period 298.9 million years ago, to the beginning of the Triassic period 251.902 Mya. It occurred 298.9 (+/- 0.15) million years ago - 251.902 (+/- 0.024) million years ago
The Triassic spans 50.6 million years from the end of the Permian Period 251.9 million years ago, to the beginning of the Jurassic Period 201.3 Mya. Triassic occurred 251.902 (+/- 0.024) million years ago - 201.3 (+/- 0.2) million years ago
The Silurian is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at 443.8 million years ago, to the beginning of the Devonian Period, 419.2 Mya. It occured 443.8 (+/- 1.5) million years ago - 419.2 (+/- 3.2) million years ago
Therefore, D. After the Carboniferous period, oxygen levels started to decline from 35 percent down to today's levels
Learn moreLearn more about oxygen levels https://brainly.com/question/11494449Learn more about the Silurian period https://brainly.com/question/882157Learn more about the Carboniferous period https://brainly.com/question/8930188Answer details
Grade: 9
Subject: biology
Chapter: period
Keywords: oxygen levels, the Silurian period, the Carboniferous period, the Permian period, the Triassic period
Based on arrow movement why is the front shown in item A different from the front shown in item B?
Answer:
In item A, two air masses form a boundary; whereas, in item B, warm air rises above cold air.
Explanation:
When warm and cold air masses meet in the opposite direction, they form a boundary but warm air would still rise above the cold air, and cold air would stay below the warm air.
On the other hand, when both air masses move in the same direction, warm air would stay above the cold air and they both will move forward.
some bacteria cause diseases in humans and other organisms, but?
A. we don’t know of any archaea that are harmful
B. viruses are unable to infect humans
C. diseases caused by bacteria aren’t serious
D. antibiotics can always be used to treat bacterial infections
We don’t know of any archaea that are harmful. Option A
What is bacteria?Although they resemble bacteria, archaea are separate microorganisms. There is little evidence that archaea, unlike other pathogenic bacteria that cause disease, are detrimental to humans or other species. Although most archaea are recognized for their functions in harsh settings, they rarely cause illness.
Archaea are distinguished from disease-causing bacteria by their lack of known negative effects. This helps to explain the notion that, to date, no pathogenic or dangerous archaea have been found, which separates them from bacterial agents that cause disease.
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Define the term cell differentiation and describe its importance to an organism
Cellular differentiation describes how different cells perform different processes and have unique functions. There are at least 250 cells in the human body and each one plays a different role, and all of them are crucial to the body's ability to maintain homeostasis. For example, liver cells produce proteins that are important in blood clotting. If these cells are damaged, blood will not clot properly. If blood does not clot, a body cannot maintain homeostasis and the person will fall ill.
TL;DR: every cell plays its part and keeps the organism alive.
An atmospheric scientist used a high-resolution camera to take images of snowflakes during a snowstorm. The scientist observed that the snowflakes were heavily rimed. What can the atmospheric scientist infer about the snowstorm that was happening at that time? The storm was deep and shallow. The storm was deep and turbulent. The storm was calm and shallow. The storm was calm and deep.
THE ANSWER IS:
B) The storm was deep and turbulent
just did the assignment :)) have a great day and goodluck
Answer:
The scientist inferred that the storm was deep and turbulent.
Explanation:
Heavily rimed snowflakes are a sign of heavy and wet snow production.
Rimmed snowflakes are snowflakes which are partially or completely coated with rime.
Rime are tiny droplets of water that coat snowflakes.
When there is less rime around snowflakes then the snow shall be shallow but heavy coating as the scientist observed shall be heavy and wet.
Answer: the storm was deep and turbulent
Explanation: