Answer:
grasses
Explanation:
Grass is a great environmental resistance to pollution, and is the reason why it is planted in the middle points of many roads.
Mention the name of four groups of important pathogenic E. coli? Can TBX medium be used to recover all types of nonpathogenic and pathogenic E. coli? Support your answer by giving an example.
The four groups of pathogenic E.coli are enteropathogenic, enterotoxigenic, verocytotoxigenic and enteroinvasive groups. These groups can best be isolated and recoved through luria broth.
What is Escherichia coli?The pathogenic E. coli or Escherichia coli serotypes are grouped on the basis of their mechanism of causing symptoms in humans. The six groups of pathogenic E.coli are enteropathogenic, enterotoxigenic, verocytotoxigenic, enteroinvasive, enteroaggregative and diffusely adherent E. coli.
Luria broth (LB) is one of the most commonly used growth medium for E. coli. It promotes fast growth of the organism and also provides good plasmid yields, making it an excellent choice for most laboratory applications, especially the small-scale plasmid preps.
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hi biologists! What are dynamical systems in biology?
Answer:
Dynamic Systems Biology Modeling and Simuation consolidates and unifies classical and contemporary multiscale methodologies for mathematical modeling and computer simulation of dynamic biological systems – from molecular/cellular, organ-system, on up to population levels.
Explanation:
ihope i helps u
Answer:
This volume highlights problems from a range of biological and medical applications that can be interpreted as questions about system behavior or control is called dynamical systems.
Are cows part of the hydrosphere
What is not one of the 4 most common elements that are found in living organisms?
calcium
hydrogen
oxygen
nitrogen
Answer:
Calcium
Explanation:
MOST living things are made up of hydrogen, oxygen, nitrogen, and CARBON.
Calcium does exist, but it is of the lowest quantity of the options given.
Fossil fuels cannot be used for energy unless they are _
Answer:
You can burn fossil fuels to produce heat energy, and use them to power your engine.
50
Which of these does not apply to the human microbiome?
Select one:
of
O A. It is 10 human cells to one microbial cell.
estion
O B. It affects our health.
C. Includes all microbes.
O D. Our diet affects our microbiome.
What is the perimeter of the figure?
36 in.
42 in.
44 in.
48 in.
Answer:
170 in
Explanation:
Add all values
Answer:
42
Explanation:
who was the first woman to go into space
this is of 100 points
Answer:
Answer:Valentina Tereshkova
Answer:Valentina TereshkovaExplanation:
The first woman to travel into space was Soviet cosmonaut, Tereshkova was launched on a solo mission aboard the space craft Vostok 6
What is the purpose of binomial nomenclature?A) to give every species a unique name for identification B) to develop new names for previously named species C) to help scientists understand differences between species D) to create a standard way to name new species ONLY
Question: What is the purpose of binomial nomenclature?
Solution ( explanation):
Every recognized species on earth is given a two-part scientific name. This system is called binomial nomenclature. These two parts are the generic name (genus name) and the specific name (or specific epithet, in botanical nomenclature). Now, each biological species must be assigned a unique and universal scientific name. When a species receives two or more scientific names assigned by different researchers, the oldest will be respected.
Answer: we can conclude that the correct answer is:
A) to give every species a unique name for identification.
what will happen if there is no mitrochondria in a cell
This event occurs directly following mitosis, and is called
metaphase
anaphase
prophase I
cytokinesis
Cytokinesis is the term used to describe the process that follows mitosis.
What occurs during the mitosis?A cell divides into two identical daughter cells after duplicating every component of it, including its chromosomes, during the mitotic process. The processes of mitosis are meticulously regulated by certain genes since this process is so crucial. Cancer can develop when mitosis is improperly controlled, among other health issues.
What is the purpose of mitosis?In the cell division process known as mitosis, the chromosomes multiply and are evenly distributed across the two daughter cells. Each daughter cell has a same number of chromosomes to the parent cell, making the cell type diploid. Mitosis is hence also known as equational division.
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A crane has a sharp and pointed beak while the duck has a flat beak.Explain why
Answer:
The crane has a sharp and pointed beak adapted for catching and grasping prey. The sharp beak allows the crane to effectively stab and pierce its prey, such as fish, frogs, or small animals. The pointed shape helps the crane to accurately target its prey and secure a firm grip.
On the other hand, the duck has a flat beak, which is better suited for its specific feeding habits. Ducks are primarily filter feeders, and their flat beak enables them to sift through water or mud to collect small organisms, insects, and plants. The flat beak acts like a sieve, allowing the duck to strain out food particles while retaining water.
The difference in beak shape between the crane and the duck reflects their distinct feeding strategies and ecological roles. Each species has evolved its beak shape to optimize its ability to capture and consume the specific types of food sources available in their respective habitats.
Which of the following describes an ocean trench
An ocean trench is described when B and C, some are found next to continents and they are long and deep.
What is an ocean trench?An ocean trench is a long, narrow depression in the ocean floor. They are typically 50 to 100 kilometers wide and 3 to 4 km below the level of the surrounding oceanic floor, but can be thousands of kilometers in length.
There are about 50,000 km of oceanic trenches worldwide, mostly around the Pacific Ocean, but also in the eastern Indian Ocean and a few other locations. The greatest ocean depth measured is in the Challenger Deep of the Mariana Trench, at a depth of 10,920 m (35,830 ft) below sea level.
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Complete question:
Which of the following describes an ocean trench
(A) A high, narrow ridge in the ocean floor
(B) Some are found next to continents
(C) They are long and deep.
(D) A shallow, wide basin in the ocean floor
When a woman goes into the first stage of labor, the oxytocin level in her plasma is 40 pg/ml, but during the second
stage of labor it is 123 pg/ml. Once the baby has been delivered the mother's oxytocin level is 64 pg/ml. Which type of feedback
mechanism is occuring?
A. Negative feedback
B. Positive feedback
Answer:
Positive Feedback
Explanation:
A positive feedback mechanism occurs in a contraction of uterus during childbirth.
What is a feedback mechanism?"It is a physiological regulation system in a living body that works to return the body to its normal internal state (or homeostasis)."It is of two types: positive feedback mechanism and negative feedback mechanism.In positive feedback mechanism: when activation of one component leads to the activation of another, it is known as positive feedback.
Example: During childbirth, the oxytocin level of a women into her first stage of labor is 40 pg/ml for uterine contraction, which activate more release of oxytocin for further contraction.In negative feedback mechanism: when activation of one component leads to the inactivation of another, it is known as negative feedback.
Example: when blood glucose level increase, the insulin are secreted which lowers the glucose level in blood.Hence, the correct option is: B. Positive feedback.
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the presence of cilia on an epithelial tissue's apical surface indicates that the tissue is sensitive to pressure. true or false?
Answer: Epithelial Tissue Learn with flashcards, games, and more — for free. ... The apical surface may have either microvilli or cilia. ... Epithelial tissues protect both external and internal surfaces from dehydration, abrasion, and destruction by ... pseudostratified (sū′dō-strat′i-fīd; pseudo = false, stratum = layer) epithelium.
Explanation: I hope this helps UwU
The presence of cilia on an epithelial tissue's apical surface DOES NOT INDICATE that the tissue is sensitive to pressure (this statement is FALSE)
Epithelial tissue is a type of tissue that acts to absorb, secrete and excrete molecules.Ciliated epithelia are tissues having hair-like structures known as cilia (singular = cilium) that extend along the plasma membrane. Cilia are extensions of the plasma membrane which are supported by structural proteins (microtubules).The ciliated epithelial tissues are found in the airways (i.e., nose, bronchi) and in the fallopian tubes of women.The cilia present in these tissues move back and forth in a coordinated mode and thus help to remove particulate matter/substances.Therefore, cilia function is not associated with the pressure on a given tissue.In conclusion, the statement above is FALSE because the presence of cilia on an epithelial tissue's apical surface DOES NOT indicate that the tissue is sensitive to pressure.
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1. How could a water molecule be transferred and transformed through the water cycle over millions of years? Record your evidence.
2. Remember the water on the bathroom mirror that appears after you take a shower? Tell a story about how those droplets appear in the mirror and what could happen to a water molecule from one of the droplets as it moves through the water cycle. Describe at least four changes in the state of water, the processes that move the water, and how energy flows to and from the water. Be sure to include at least one living organism in the water cycle.
Answer:
the condensation of water vapor as it touches a colder surface.
Explanation:
1. Over millions of years, a water molecule can be transferred and transformed through the water cycle by processes such as evaporation, condensation, precipitation, runoff, infiltration, groundwater flow, and ocean currents.
2. After a refreshing shower, steam fills the bathroom, causing warm, moist air to rise and condense on the cooler bathroom mirror.
As droplets form, a journey begins for a water molecule named Wally. Wally, part of a droplet, evaporates due to the bathroom's warmth, becoming water vapor. Riding air currents, Wally rises to the atmosphere, joining clouds in a process known as condensation. United with other droplets, Wally experiences coalescence and becomes a raindrop, falling as precipitation.
Upon landing in a lush garden, Wally is absorbed by plant roots in a process called infiltration, fueling photosynthesis. A friendly earthworm, part of the living organism realm, aids infiltration by burrowing, allowing water to seep deeper into the ground. Underground, Wally joins groundwater, becoming part of an aquifer.
Time passes, and Wally encounters a geological shift, emerging as a freshwater spring. The sun's energy fuels evaporation from the spring's surface, and Wally returns to the atmosphere as water vapor. Caught in a wind pattern, Wally journeys afar, reaching an ocean. Guided by ocean currents, Wally participates in thermohaline circulation, absorbing heat and releasing energy into the atmosphere.
In a distant land, Wally is lifted into a cloud, cooled, and once again condenses. Falling as rain over a river, Wally reunites with a bustling ecosystem. As a river flows to the ocean, Wally experiences transportation, and the water body teems with life. Finally, guided by gravity, Wally reaches the ocean, where the cycle continues.
In this cyclical adventure, Wally undergoes four state changes (evaporation, condensation, precipitation, and infiltration), encounters diverse processes, such as evaporation, condensation, infiltration, and ocean currents, and interacts with living organisms, like plants and earthworms. Energy flows from the sun, driving these processes and sustaining the dynamic water cycle.
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List three types of asexual reproductions (other than vegetative) and define each in a short paragraph.
Asexual reproduction refers to a type of reproduction where a child is born to a solitary parent. The newly created people are clones of their parents because they share the same DNA makeup and physical characteristics.
What about reproduction:
Reproduction is the biological process by which new individual organisms are produced from pre-existing ones. In most species, reproduction involves the fusion of gametes, specialized cells that carry genetic information from the parents. The resulting offspring inherit a combination of traits from their parents, making them unique individuals.
Define DNA
DNA, or deoxyribonucleic acid, is a molecule that carries genetic information in living organisms. It is composed of four different nucleotides: adenine (A), thymine (T), cytosine (C), and guanine (G). These nucleotides are arranged in a specific sequence that determines the genetic code of an organism.
The three types of asexual reproductions are:
Binary Fission- Binary fission involves the division of the progenitor cell into two cells. various organisms exhibit various patterns of cell division, some of which are directional and others of which are non-directional. Binary division is seen in amoeba and euglena.Budding-The process of creating an individual from the buds that form on the parent body is known as budding. An creature called a hydra reproduces by budding. When the bud is completely grown, it separates from the parent organism, which provides it with food and protection.Fragmentation-Species like spirogyra and planaria, among others, also reproduce asexually through fragmentation. Each fragment formed by the primary body's division into smaller ones grows into a new organism.To know more about reproduction visit:
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7) Calculate ∆G^0' for the following reaction: glucose + 6O2 → 6 CO2 + 6 H2O. Is this reaction exergonic or endergonic?
The reaction is endergonic.
Procedure - Determination of the Gibbs reaction typeThermochemical modelFirst, we need to determine the Gibbs free energy function (\(\Delta G_{o}\)), in kilojoules, of the entire reaction by this formula:
\(\Delta G_{o} = \Sigma\limits_{j=1}^{m} n_{j}\cdot g_{o, j} - \Sigma\limits_{i=1}^{p}n_{i}\cdot g_{o,i}\) (1)
Where:
\(n_{i}\) - Number of kilomoles of the i-th reactive, in kilomoles.\(n_{j}\) - Number of kilomoles of the j-th product, in kilomoles. \(g_{o,i}\) - Specific Gibbs free energy function of the i-th reactive, in kilojoules per kilomole.\(g_{o,j}\) - Specific Gibbs free energy function of the j-th reactive, in kilojoules per kilomole.Data from thermochemical tablesFrom thermochemical tables we have the following information:
Reactives
\(g_{glu} = -2871596\,\frac{kJ}{kmol}\), \(g_{O_{2}} = 0\,\frac{kJ}{kmol}\)
\(n_{glu} = 1\,kmol\), \(n_{O_{2}} = 6\,kmol\)
Products
\(g_{CO_{2}} = -137150\,\frac{kJ}{kmol}\), \(g_{H_{2}O} = -237180\,\frac{kJ}{kmol}\)
\(n_{CO_{2}} = 6\,kmol\), \(n_{H_{2}O} = 6\,kmol\)
Determination of the Gibbs free energy functionNow we proceed to determine the Gibbs free energy function and later determine the nature of the thermochemical reaction:
\(\Delta G_{o} = (6\,kmol)\cdot \left(-137150\,\frac{kJ}{kmol} \right) + (6\,kmol)\cdot \left(-237180\,\frac{kJ}{kmol} \right)-(1\,kmol)\cdot \left(-2871596\,\frac{kJ}{kmol} \right) - (6\,kmol)\cdot \left(0\,\frac{kJ}{kmol} \right)\)
\(\Delta G_{o} = 625616\,kJ\)
The Gibbs free energy function of the entire reaction is 625616 kilojoules.
Analysis of the resultThe Gibbs free energy function has a positive sign, which means that this reaction is endergonic.
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Dizziness, pale and ashen colored skin, pain and pressure in the jaw or chest are all signs and
symptoms of:
A. A seizure
B. A stroke
C. A heart attack
D. An aneurism
how do oxbow lakes form
Answer:
It starts with a bend in a river then the river erodes the bend until it goes through the bend and the old bend keeps its water and becomes a lake
Answer:
here you go
Explanation:
when you get a meander the lake slowly erodes from the inside, because water will always want to take the faster route( which would be straight ) the lake will slowly cute off the meander while dumping the rivers load forming an oxbow lake
Grandma Hippity Hop is worried about the ice that will be forming on her sidewalk this winter. She doesn't have money to waste on sidewalk salt that is ineffective, so Brenda decides to do some testing for her.
Indepedent Variable - ______________________________________________________
Dependent Variable - _______________________________________________________
Controlled Variables: (There are at least 5. Please list 2) __________________________________________________________________________________
__________________________________________________________________________________
Answer:
Independent variable- SIDEWALK SALT
Dependent variable- ICE FORMATION
Controlled variables- same size of ice, same sidewalk
Explanation:
Based on the information given in this question, Brenda is helping Grandma Hippity Hop test the effect of sidewalk salt on the formation of ice on her sidewalk.
In an experiment, the independent variable is the variable that is changed or manipulated by the experimenter. In this case, the SIDEWALK SALT is the independent variable because it is the one being changed i.e used or not used.
Dependent variable is the variable that responds to the changes made to the independent variable. It is the variable that is measured or recorded in an experiment. In this case, the ICE is the dependent variable because its formation is dependent on the SALT (independent variable).
Controlled variable or constants are variables of an experiment that are kept unchanged throughout the experiment. In this case, the SAME SIDEWALK AND SIZE OF ICE are used, hence, they are the controlled variables.
Which two elements have properties of both metals and nonmetals?
beryllium (Be)
iron (Fe)
silicon (Si)
tellurium (Te)
tungsten (W)
Answer:
silicon and tellurium
Explanation:
Elements that have both properties of non metals and metals are called metalloid or semi metals.
microbes are useful models for reserach for several reasons. which of the following reasons is incorrect?
The correct answer is D. The inaccurate statement is that studying microbes is expensive and complicated.
For a number of reasons, microbes make good study models. They can be studied in great detail because they are relatively simple organisms. Second, they are simple to produce in a lab, which makes them perfect test subjects. Third, their capacity for rapid evolution makes it possible for researchers to analyze the evolutionary process. They can also be used to research how organisms interact with their environment, including how various environmental factors affect the physiology and behavior of microbes. Microbes are tiny organisms like bacteria, fungus, protozoa, and viruses. They are too small to be seen with the human eye.
The complete question is:
microbes are useful models for reserach for several reasons. which of the following reasons is incorrect?
A. Microbes have a short life cycle, allowing for multiple generations to be studied in a short period of time.
B. Microbes can be easily manipulated and studied in a laboratory setting.
C. Microbes have complex systems, allowing for the study of complex processes.
D. Microbes are expensive and require a high level of technical expertise to study.
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list the 3 main types of rocks and the process of how they are craeted
Where do plants get the nitrogen they need?
Answer: soil
Explanation: Soil
According to 2 sources
Plants get the nitrogen that they need from the soil, where it has already been fixed by bacteria and archaea. Bacteria and archaea in the soil and in the roots of some plants have the ability to convert molecular nitrogen from the air (N 2) to ammonia (NH 3), thereby breaking the tough triple bond of molecular nitrogen.
On the model of mitchondrion, highlight the area (arrows) that is the ELECTRON TRANSPORT CHAIN in yellow.
Place an X over the protein that is inhibited by cyanide.
Color the phospholipid bilayer blue.
A special protein called ATP synthase generates ATP. Find it on the diagram and color it red
The electron transporter chain is the sequence of redox reactions that occur in the mitochondrial membrane as electrons flow through different electron transporters resulting in energy production. In the attached files you will find the image with the colored structures.
What is the electron transporter chain and how does cyanid inhibit it?
The electron transporter chain is a series of molecules and proteins located in the internal mitochondrial membrane. It constitutes a series of enzymatic reactions to release and save energy for the organism’s correct functioning.
Along the chain, there are four proteinic complexes in the membrane that contain the electron transporters and the enzymes necessary to catalyze the electrons' transference from one complex to the other.
Different redox reactions occur to pass electrons from NADH along the chain.
Released energy creates a proton concentration gradient used to synthesize ATP.
Cytochrome oxidase (P450) is one of the enzymes involved in this electron transport, which ends in producing energy. It is the complex IV.
Ion cyanide is a powerful cellular poison that inhibits cellular respiration by binding to the ferric ion of cytochrome oxidase.
Cyanide-ferric binding inactivates the enzyme and blocks electron transference. The chain is interrupted, leading to no oxygen consumption and no ATP production.
Since muscles do not get to have ATP as a source of energy, they weaken.
The interruption of the electron transporter chain produces an anaerobic state that could be culminating.
In the attached files you will find the image with the colored structures. Complex IV is the one affected by cyanide.
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George bought a pair of jeans from an online
store. When they arrived, he found that they
were too small to wear. What could George do
in order to fit into the jeans?
A. George could lose mass and, therefore, weight.
B. George could fit into the jeans easier on the Moon.
C. George could increase his volume to better fit into the jeans.
D. George could increase the amount of his mass by eating more.
Answer:
A, If I made the multiple choice I would add "check your SIZE before buying!!"
Explanation:
• Al medir 4.7 m como la longitud de una habitación que mide realmente 4.67 m.
Answer:
Completando.
Explicación:
Al medir 4,7 m como la longitud de una habitación que en realidad es 4,67 m debido al redondeo del valor de 4,67. El redondeo se refiere a un número que se simplifica al mantener su valor intacto pero más cerca del siguiente número. Se hace tanto para números enteros como para decimales. Si el segundo dígito a la derecha del decimal es mayor que 5, entonces se le da un número al primer dígito presente a la derecha del decimal, por lo que en este ejemplo, el segundo dígito a la derecha del decimal es 7, que es mayor que 5, por lo que se agrega uno. a 6, que está presente a la derecha del decimal, lo que lo convierte en 7.
In your biology class, there was a discussion about climate change. You learned that human activities are changing the composition of Earth's atmosphere, and that levels of greenhouse gases like carbon dioxide (CO2) have been increasing sincepre-industrial times. Your teacher stated that the atmospheric buildup of CO, and other greenhouse gases is largely the result of human activities such as the burning of fossil fuels. One student in your class disagreed. He said that the increase in human populations worldwide is causing the higher level of CO,. His argument is that as people exhale, they release CO, from cellular respiration; more people, more COy. Your class erupted in discussion, and your teacher has asked that you choose a side and research the argument. Working in small groups, create short documentary (3-5 minutes) about how respiration and fossil fuel burning are similar processes. Use data and evidence from peer-reviewed sources to make a claim regarding whether or not one (or both) of these processes can be the root cause of climate change.
Answer:
Below
Explanation:
While your classmate is correct in that respiration does cause the release of CO2, it's inaccurate to say that it has contributed to climate change, and it's especially inaccurate to say it has contributed to the same extend as the use of fossil fuels.
Let's break it down shall we:
When a human breathes, they release 35,000 to 50,000 ppm (parts per million) of CO2 with every exhale. On average, we breathe out 20,000 times a day. Multiply that by the amount of people on Earth, about 7.8 billion, you get 1.716x10^14 breaths a day. Therefore, you have that times 50,000 ppm of CO2 released. That sure is a lot, however, let's look at how much carbon dioxide is released from coal alone in a day. In general, the world consumes over 8.5 million tons of coal a year, and in the US alone 14,000 tons are burnt in one day. When you burn one pound of coal, around 2 pounds of CO2 is released, as the carbon of the coal mixes with the oxygen requiring it to burn. Therefore, 28,000 tons of CO2 is put into the environment from coal alone (not even including all of the other fossil fuels like natural gas and oil), showing how extensive the CO2 burning of fossil fuels is.
Additionally, I want to address the point of increased human population leading to more CO2 from respiration. Consider this, with more people, there is more need for agriculture. Aka, we need to grow more plants in order to sustain our growing population. Plants grow using photosynthesis which needs Carbon Dioxide to begin. Therefore, as our population grows, the amount of CO2 taken from our atmosphere in order to sustain our population actually shows that growing population doesn't necessarily relate to more CO2 from exhalation overall.
Quagga mussels, an invasive species of mollusk originally from
Russia, have been introduced to the lake after being carried in on
the hulls of boats. An assessment of the size of the quagga
mussel problem is needed, along with suggestions to curb their
population growth.
what field of science is this?
This is a problem in the field of ecology.
The problem of quagga mussels in the lake is an ecological issue that requires scientific assessment and management.
It falls under the discipline of ecology, which studies the relationships between organisms and their environment.
Ecologists investigate the impacts of invasive species on the ecosystem and devise strategies to control their spread and minimize their effects.
In this case, scientists will need to examine the size of the quagga mussel population, their distribution, and their ecological interactions with native species.
They will also need to recommend measures to prevent further introduction of quagga mussels and to manage their population growth, such as using chemical treatments or biological controls.
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