Renee should follow proper laboratory safety guidelines and ensure that all the equipment in the biology lab are in the proper place before leaving for the next class when the bell rings.
Renee should first of all place the compound microscope gently in its proper place after removing the slide from the stage and adjusting the eye piece back to its original position. The microscope should always be carried from the arm side.
Renee should also wash the slides, coverslips, petri-dishes, pipettes, etc. before placing them back in their respective places in the laboratory. The burner should also be turned off properly. Finally, Renee should wash her hands properly before leaving the biology lab.
To learn more about compound microscope here
https://brainly.com/question/1622133
#SPJ1
hydrogen bonds are similar to ionic bonds because
Answer:
they both involve the attraction between opposite charges.
Explanation:
no explanation
What does PAN stand for?
Answer:
In the fields of molecular biology and genetics, a pan-genome (pangenome or supragenome) is the entire set of genes from all strains within a clade. More generally, it is the union of all the genomes of a clade.
Explanation:
Which of the following are functions of the skin?
Enter a checkmark for each correct option.
( Stimulation of red blood cells
( Filtration of metabolic waste products
Protects the body from dehydration
Thermoregulation
Answer:
Protects the body from dehydration, Thermo regulation
Explanation: ( I'm sure these are the answers )
Which element makes some rocks glow, helps oysters form pearls, and creates amazing cave formations?
The element which makes some rocks glow, helps oysters form pearls, and creates amazing cave formations is referred to as aragonite.
What is an Aragonite?This refers to an element which is similar to calcite as it also consists of calcium carbonate but however differs from it because it undergoes orthorhombic crystallization. It is formed from different biological and physical processes such as precipitation which goes on in the aquatic ecosystem.
This elements performs various functions in different substance such as making some rocks glow, helps oysters form pearls, and creates amazing cave formations.
This is therefore why aragonite was chosen as the most appropriate choice.
Read more about Aragonite here https://brainly.com/question/5776981
#SPJ1
A cinder cone volcano easily erodes because it is made of ash and other volcanic debris. This indicates that its eruption is primarily _____.
A) explosive with a pyroclastic flow B) non-explosive with a pyroclastic flow C) explosive with pyroclastic and lava flows D) non-explosive with a lava flow
PLEASE HELP GIVING BRAINLIEST TO FIRST CORRECT ANSWER
A cinder cone volcano easily erodes because it is made of ash and other volcanic debris. This indicates that its eruption is primarily explosive with a pyroclastic flow.
Volcanoes with cinder cones are the most basic. They are made of lava chunks and blobs that were ejected from a single vent.
A single vent is surrounded by a conical formation of ash, tephra, and solidified lava called a cinder cone. After being ejected into the air from the vent, volcanic debris breaks apart and falls to the ground, forming the cone. As the ash and lava cool and solidify, they form a cone around the vent.
The height of a cinder cone can range from 10 to hundreds of meters, and its summit frequently features a bowl-shaped crater. They differ from spatter cones, which are made of agglomerated volcanic bombs, in that they are made of loose pyroclastic material (cinder or scoria) and hence eruption is primarily explosive with a pyroclastic flow.
To learn ore about cider cone volcano visit the link:
https://brainly.com/question/12945128?referrer=searchResults
#SPJ1
Why does an eclipse happen? The Sun burns out quickly and reignites due to changes in magnetic energy. b A celestial object moves into the shadow made by another celestial object. c Stars twinkle which creates a delay in light transfer. d The planets Mars and Venus interfere with Earth's orbit. NEED HELP
An eclipse occurs when celestial object moves into the shadow made by another celestial object. Option A
What is an eclipse?The term eclipse refers to a situation in which in which one celestial body casts a shadow on another celestial body. In this case, we could have the earth cast its shadow on the earth or the sun as the case may be.
The kinds of eclipse that could occur are;
Eclipse of the sunEclipse of the moonThis brings us to conclude that; an eclipse occurs when celestial object moves into the shadow made by another celestial object. Option A
Learn more about eclipse:https://brainly.com/question/4279342
#SPJ1
What is an atom called that has LOST electrons?
Examine the data shown in Figures 2 and 3. Carefully compare the DNA methylation profiles from the 3-year-old twins versus the 50-year-old twins and summarize your observations. Which set of twins (3-year-old or 50-year-old) have the most similar DNA methylation profiles? Provide a brief explanation of your observations.
A DNA base is altered biochemically during DNA methylation, which typically takes place during gametogenesis and after fertilization.
The DNA methyltransferases DNMT1, DNMT3A, and DNMT3B keep methylation marks in tact after each cell division. Although the majority of methylation marks are stable, there is typically 10% to 20% variation over time. Ly cytosine undergoes enzymatic 5-carbon methylation. DNA methylation represents the best characterized form of epigenetic modification. DNA methylation is written onto the genome by two methyltransferases, known as Dnmt3a and Dnmt3b.These enzymes catalyze the addition . Aging is often marked by the establishment of global hypomethylation and regions of CpG island hypermethylation. These changes in the epigenetic landscape may contribute to aging by adversely affecting genomic stability and gene regulation. Thus, DNA methylation has its affect on aging and thus should be observed carefully.Learn more about DNA here:
https://brainly.com/question/7453747
#SPJ9
Receptor
K
Paper
cup
Questions
1. What happens when the vertical angulation is steep (+70°)? Is the shadow shorter or longer?
2. What happens when the vertical angulation is flat (+20°)? Is the shadow shorter or longer?
How does this relate to distortion?
The correct answers are shorter, longer, and have inverse proportionality and are used in dental radiography.
In the first case vertical angulation is what is used to control the length of any image which is being recorded and it is dictated by the holding device which directs the beam of x-ray perpendicular to both the receptor and teeth and in this case the image which is formed is shorter then the real teeth and it also occurs if the central ray is directed perpendicular to the plane of the receptor rather than to the imaginary bisector.
In the second case, the vertical angulation is flat or if it is too small the image of the teeth will be longer than the actual teeth and it often occurs due to bisecting technique.
Distortion is any kind of change that can occur in both the shape and size of the object and this is inversely proportional to the vertical angulation as when vertical angulation is not correct it creates distortion and also the steep is angulation the smaller the image will be and flat the angulation is the larger or longer the image is and in distortion which comes due to radiograph is mainly used for the teeth and the recommended angulation is +10 degree in which the central ray is directed through the contact of the teeth.
This is also called dental radiography.
To know more about vertical angulation click at https://brainly.com/question/14477223
#SPJ9
Biodiversity is the assortment, or variety, of living things in an ecosystem
Explanation:
Biodiversity is the variety of life forms in specific ecosystem but also biodiversity is the alignment between the them.
What similarities and differences do you see between the bacteria in the human cells
Answer: The similarites are that both bacteria and human cells contain the cytoplasm in which the cell organelle is present. DNA is present as genetic material inside the cells of bacteria and human cells. The ribosomes are present inside the cells of bacteria and human cells. DNA replication, transcription, and translation occur in both the cell of humans as well as bacteria.
While the differences are well developed nucleus with nuclear envelope is present inside the human cell and absent in the bacteria cell. The size of ribosomes differ in human and bacterial cell. Transcription and translation is coupled in bacterial cell whereas separate in human cell. The cell membrane bound organelle is present in human and absent in bacteria.
Explanation:
Which of the following phrases describes
the term biodiversity? luo
A. species that have become extinct
B. the animals that live in an area
C. species that look different from one
another
D. the number and variety of species that
e live in an area
Answer:
The answer is D.
Explanation:
Because biodiversity essentially means the different kinds of animals you'll find in a singular (one) area.
1. What is the change in volume from 22 degrees Celsius to 23 degrees Celsius?
Answer:
According to Charles' Law.
Volume is directly proportional to Temperature.
So if temperature increases from 22degree Celsius to 23degree Celsius, then Volume will increase from its initial.
The change in volume from 22 degrees Celsius to 23 degrees Celsius is seen because the change in temperature is directly proportional to the change in volume and the volume increases.
What is the role of temperature?The role of temperature is important as the low temperature changes the state that is from the liquid to the solid while the high temperature changes the state of matter that is from the liquid to the gas. The temperature of the earth is continuously increasing, so that the polar ice is melting and the water level on the earth is increasing. The increase of one degree is significant in the earth as the ice melts into the water, and that harms the animals and plants present in the different habitats.
Hence, the change in volume from 22 degrees Celsius to 23 degrees Celsius is seen because the change in temperature is directly proportional to the change in volume and the volume increases.
Learn more about the temperature here.
https://brainly.com/question/11464844
#SPJ2
What action should you take to keep Mohammad Nassar from exposing the other patients in the reception area
The action that one should take in order to keep Mohammad Nassar from exposing the other patients in reception area is to follow proper guidelines and instruct the other patients in the following manner:-
To ensure regular washing of hands and proper maintenance of personal hygiene.The patients should be instructed to carry a mask while visiting the hospital. They should be asked to cover their nose as well as mouth with a cloth or the mask in the hospital.Since there is an outbreak of novel influenza A, therefore the patients should be advised to maintain proper distance among themselves.Informing and educating the patients about the outbreak of novel influenza A is the best action to create awareness among the patients.To learn more about novel influenza A here
https://brainly.com/question/14084594
#SPJ1
Which of the following are freshwater ecosystems?
Answers: ponds, lake, river
produces most of the food in the ocean.
Answers: Phytoplankton
Freshwater wetlands include and
Answers: marshes and swamps
is a measure of the amount of salt dissolved in water
Answers: salinity
Which biome is pictured above?
Answer: coral reef
is an excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.
Answers: Eutrophication
Sunlight cannot penetrate deeper layers of the ocean so cannot happen.
Answers: photosynthesis
Most marine organisms live in
Answer choices:
A. shallow coastal waters
B. fisheries
C. deep ocean water
Data analysis
Aquatic Organism pH Range for Life
Clam 4.5 - 5.0
Snail 5.0 - 9.0
Bass 5.5 - 9.0
Crayfish 5.5 - 8.5
Mayfly 5.5 - 9.0
Salamander 6.0 - 8.0
Trout 6.0 - 8.5
Perch 6.5 - 8.5
Frog 7.0 - 9.5
To test acidity levels of water, scientists test the pH. As acid rain falls, the pH levels in lakes and streams decrease. While certain animals can tolerate low pH levels, others are extremely sensitive to the effects of acid rain and cannot live under the conditions. Once the pH of the pond drops below 5.5, we can expect which aquatic life form(s) to die out?
Answer choices:
A. trout and salamanders
B. clams and snails
C. perch
Answer:
Explanation:
The habitats that freshwater ecosystems provide consist of lakes, rivers, ponds, wetlands, streams, and springs. Use these classroom resources to help students explore and learn about these places.
Hope this helps :)
three challenges of the ecosystem management approach
There are several challenges of the ecosystem and they are mentioned below:
interdisciplinary collaboration is difficult due to differences in professional culture and values.roles and responsibilities of different participants are often not sufficiently clear. implementing EBM is very costly.What is ecosytem?Ecosytem is defined as a community that is biological by nature and the organism in that community attract with each other as well as their physical environment. Ecosystem is consist of both biotic as well as abiotic factor. The living components of ecosystem comes in category of biotic factor and non living components of ecosystem comes in category of abiotic factor.
Biodiversity is all the different kinds of life living in a particular area like the variety of animals, plants, fungi and microorganisms like bacteria and virus that plays a major role in framing of natural world usually three levels of biodiversity are observed and these are genetic species, and ecosystem diversity. Biodiversity is very important for the process that's support all life present on earth including human.
Therefore, interdisciplinary collaboration is difficult due to differences in professional culture and values.
roles and responsibilities of different participants are often not sufficiently clear. implementing EBM is very costly.Learn more about ecosystem here:
https://brainly.com/question/13979184
#SPJ2
Which statement is NOT true about the tools scientists use to collect quantitative data?
A meter stick is used to measure distance or length.
An electronic scale is used to measure weight.
A thermometer is used to measure temperature.
A triple beam balance is used to measure electric current.
Answer:
triple beam
Explanation:
it's used to measure balance not electric charge
i need help!!!!!!!!!!
Suppose that goats have one gene that codes for color, where A is brown and a is white. The goats also have another gene that codes for height, where B is tall and b is short. If these two genes are unlinked, what is the probability that a cross between Aa Bb × Aa bb parents will produce three out of five offspring that are brown and short? Enter your answer as a decimal, rather than as a percentage.
probability:
The probability that 3 out of 5 offspring from the cross will be brown and short does not exist or is zero.
Dihybrid crossingA represents brown and a represents white.
B is tall while b is short.
AaBb x Aabb
Offspring
A_B_ (brown and tall) = 6/16 or 3/8
A_bb (brown and short) = 6/16 or 3/8
aaB_ (white and tall) = 2/16 or 1/8
aabb (white and short) = 2/16 or 1/8
In other words, the probability of producing offspring that are brown and short is 3/8.
Thus, the probability that 3 out of 5 offspring from the cross will be brown and short does not exist or is zero.
More on dihybrid crosses can be found here: https://brainly.com/question/1185199
#SPJ1
Carbapenems are b lactam antibiotics, as are penicillins and cephalosporins, which work by inhibiting cell wall biosynthesis in bacteria. In recent years, more cases, mostly in patients who have been hospitalized for a long period of time, of bacteria showing resistance to Carbapenems have been reported. In these patients, this drug could no long control bacterial infections. Check ALL the statements that are correct:
Question 1 options: Bacteria that are resistant to Carbapenems did not exist before these drugs were used.
Carbapenems are the selecting agent Bacteria become resistant only after they come into contact with Carbapenems
This development of drug resistance by bacteria is an example of evolution
Non-resistant bacteria become resistant strains via mutation
The rate of mutation (to resistant strains) is always increased by the use of Carbapenems
The rate of survival among resistant bacteria is always increased by the use of Carbapenems
The change from non-resistant to resistant bacterial strains are not due to changes in genes.
Cabapenem-resistant bacteria may come into existence if Carbapenems are not used.
Only once bacteria come into touch with carbapenems do they develop resistance. This bacterial drug resistance is an illustration of how non-resistant bacteria can mutate into resistant strains.
The original "carbapenem," thienamycin, would become the parent or model compound for all subsequent carbapenems. Recent research demonstrates unequivocally that carbapenem resistance is growing globally. In particular when porin losses occur, excessive synthesis of weak carbapenemases as CMY-10 and PDC Beta-lactamases might result in carbapenem resistance. Gram-positive bacteria develop resistance to carbapenems and other beta-lactam antibiotics through mutation-derived modifications to their PBPs, whereas Gram-negative bacteria frequently enlist the help of additional defense mechanisms to combat the effects of these drugs.
Learn more about carbapenems https://brainly.com/question/14463241
#SPJ9
what would happen if herbivores were removed in a food chain
If there is a neutral atom with atomic number of 12, how many electrons will be in its outermost energy level?
Answer:
2
Explanation:
The atomic number of 12 is Magnesium has the following number of electrons in their respective shell 2,8,2 .. Where 2 is the electron in the outermost shell..
Owen Unger, a 19-month-old male, is admitted to the hospital by his pediatrician, Dr. Curtis, after a chest x-ray confirmed the child has pneumonia. Dr. Curtis and Mrs. Unger, Owen’s mother, discuss the child’s fever, cough, and diarrhea. Mrs. Unger provides a pertinent PFSH. An extended problem-focused ROS is completed and an extended examination of the cardiovascular and respiratory systems is performed. The course of treatment planned by Dr. Curtis is straightforward as the child’s condition is of low severity. What is the principal diagnosis code?
Dr. Robert Koch discovered Mycobacterium tuberculosis in 1882. The illness was widespread and typically fatal. The disease affects victims in two ways, but quarantine in tuberculosis sanitariums, medical intervention, and code-based reporting systems significantly reduce cases.
Patients having symptomatic TB are known to have effects on various body areas.
Patients with latent TB don't feel ill, but if they don't get treatment, they could develop symptoms.
Patients with the illness typically have positive sputum and skin tests, abnormal chest X-rays, and may present the following symptoms, according to the Centers for Disease Control and Prevention (CDC):
a bad cough that lasts 3 weeks or longerpain in the chestcoughing up blood or sputumweakness or fatigueweight lossno appetitechillsfeversweating at nightICD-10-CM code sections A15 through A19 are reserved for diagnosis of tuberculosis caused by Mycobacterium tuberculosis or Mycobacterium Bovis. Look to P37.0 if congenital TB is the patient's diagnosis. R76.11 should be used to report a positive skin test for latent tuberculosis or for active disease. Through B90.x, the sequela may be reported. Report J65 if the patient has tuberculosis-related silicotuberculosis pneumoconiosis. For screening for respiratory tuberculosis, visit Z11.1. If the patient is a TB carrier, report Z22.
Learn more about tuberculosis here:
https://brainly.com/question/24750931
#SPJ9
Which statement is true? DNA forms a double helix; RNA consists of a single strand. DNA forms a single strand; RNA consists of a double helix. RNA forms a double strand; DNA consists of a single helix. RNA forms a double strand; DNA consists of a double helix
RNA forms a double strand; DNA consists of a single helix. RNA forms a double strand -TRUE
Perhaps the most significant molecules in cell biology are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), which store and read the genetic information that is the basis of all life. Both are linear polymers made up of sugars, phosphates, and bases, but they differ in a few significant ways.
These differences allow the two molecules to cooperate and perform their fundamental functions. Here, we examine 5 significant distinctions between DNA and RNA. All genetic information is encoded in DNA, which also serves as the building block for all biological life.
And only in the near future. In the long run, DNA serves as a storage medium, a biological flash drive that enables the transmission of the genetic code from one generation to the next.
To learn more about DNA here:-
https://brainly.com/question/264225?referrer=searchResults
#SPJ9
Why does an egg change color and texture when heated?
Answer: proteins uncoil and get tangled together. tangled proteins form a kind of mesh, which traps the surrounding water.
Two containers of water and their starting conditions are shown below. . How will the temperatures of the water in the containers compare if an equal amount of heat is absorbed by each container of water without boiling? A. Both water temperatures will increase, but container B's will increase more. B. Both water temperatures will increase by the same amount. C. Both water temperatures will increase, but container A's will increase more. D. Both water temperatures will decrease, but container B's will decrease more.
Answer:
The answer is A: Both water temperatures will increase, but container B's will increase more.
If an equal amount of heat is absorbed by each container of water without boiling then both water temperatures will increase, but container B's will increase more ad is denoted as option A.
What is Temperature?This is referred to as the degree of hotness or coldness of a substance and is influenced by thermal energy It is usually measured with a thermometer and water absorbs it at different rates.
In the diagram below, both container of water will increase but to varying degrees. However, container B which has less water means that its temperature will increase more than container A and is therefore denoted as option A.
Read more about Temperature here https://brainly.com/question/25677592
#SPJ1
why do plants excrete more carbon dioxide at night than during the day?
A. Cellular respiration occurs only at night and not during the day
B. Cellular respiration occurs at a faster rate at night then during the day
C. Photosynthesis uses some of the carbon dioxide released during the day
D. The light-independent reaction of photosynthesis that releases carbon dioxide occurs at night
Answer:
C
Explanation:
they cannot do photosynthesis at night.
Which two activities are examples of the work of engineers rather than of
scientists?
A. Developing a new technique to measure water purity
B. Designing materials to absorb water
C. Studying how wildlife is affected by pollution
D. Comparing root structures in different kinds of plants
The shoulder is ___ to the cervical region
The ankle is ___ to the knee
The abdominal region is ___ to the sternal region
Answer:
Since the ankle is further than the knee from the abdomen, it is distal to the knee.
Explanation:
The five regions of the body are the head, neck, torso, upper extremities, and lower extremities. The body is also divided by three imaginary planes known as the sagittal plane, coronal plane, and transverse plane. The sagittal plane runs vertically and divides the body into right and left portions.The human body is divided into regions. The main ones in the human body are the head, neck, thorax, abdomen, pelvis, together with the upper and lower extremities. The upper limb is divided into shoulder, arm, elbow, forearm, wrist, and hand.The shoulder is ___ to the cervical region
The ankle is ___ to the knee
The abdominal region is ___ to the sternal regionThat's because the glass walls of the greenhouse trap the Sun's heat. The greenhouse effect works much the same way on Earth. Gases in the atmosphere, such as carbon dioxide, trap heat similar to the glass roof of a greenhouse. These heat-trapping gases are called greenhouse gases.The shoulder is ___ to the cervical region
The ankle is ___ to the knee
The abdominal region is ___ to the sternal regionThe human body is divided into regions. The main ones in the human body are the head, neck, thorax, abdomen, pelvis, together with the upper and lower extremities. The upper limb is divided into shoulder, arm, elbow, forearm, wrist, and hand.Since the ankle is further than the knee from the abdomen, it is distal to the knee.The five regions of the body are the head, neck, torso, upper extremities, and lower extremities. The body is also divided by three imaginary planes known as the sagittal plane, coronal plane, and transverse plane. The sagittal plane runs vertically and divides the body into right and left portions.Since the ankle is further than the knee from the abdomen, it is distal to the knee.The shoulder is ___ to the cervical region
The ankle is ___ to the knee
The abdominal region is ___ to the sternal regionThe human body is divided into regions. The main ones in the human body are the head, neck, thorax, abdomen, pelvis, together with the upper and lower extremities. The upper limb is divided into shoulder, arm, elbow, forearm, wrist, and hand.The five regions of the body are the head, neck, torso, upper extremities, and lower extremities. The body is also divided by three imaginary planes known as the sagittal plane, coronal plane, and transverse plane. The sagittal plane runs vertically and divides the body into right and left portions.The human body is divided into regions. The main ones in the human body are the head, neck, thorax, abdomen, pelvis, together with the upper and lower extremities. The upper limb is divided into shoulder, arm, elbow, forearm, wrist, and hand.
A psychological disorder is characterized in part by A) stability in everyday functioning B ) cognitive , behavioral , or emotional dysfunction C ) behavior that is common in the culture D ) a typical response to an abnormal event
