Is the C. They line up with the duplicated chromosome one on top of the other
Chromosomes line up differently in meiosis compared to mitosis as they line up with the duplicated chromosome one on top of the other. Therefore, the correct option is C.
During mitosis the chromosomes align differently than during meiosis. Homologous chromosomes pair up and join during the first stage of meiosis, known as prophase I. Two sister chromatids, which are identical copies made by DNA replication, make up each homologous chromosome. A quadrivalent or bivalent is the name of the structure formed by these paired homologous chromosomes.
Therefore, the correct option is C.
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In general, which type of molecules would be able to pass through a cell's
membrane?
a. Monomers only
b. Polymers only
c. Both monomers and polymers
d. Neither will be able to pass through
Monomers only In general, which type of molecules would be able to pass through a cell's membrane
The cell membrane is also called as the plasma membrane. It provides the protection for the cell and its cellular components from the external environment. It is basically selectively permeable and the regulates the movement of the molecules in and out of the cell. The cell membrane (plasma membrane) is a thin semi-permeable membrane that is surrounds the cytoplasm of the cell. Its function is to protect the integrity of the interior of the cell by allowing of the certain substances into the cell while keeping other substances out
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Which claim is most likely based on pseudoscience?
OA. The growth of plants is affected by the availability of light and
water.
B. Gardening is good for the soul because plants represent the
beauty of nature.
OC. Plants are often used during certain religious ceremonies.
OD. Seeds should be planted during specific moon cycles to achieve
their potential.
Answer:
D. Seeds should be planted during specific moon their cycle to achieve their potential.
Jasper has an interest in a job that allows him to be on the move. Jobs like drivers, pilots, and captains of vehicles, planes, or boats are all of
Interest to Jasper. Based on this, what career pathway will Jasper MOST LIKELY pursue?
OA
Sales & Service
OB. Health, Safety & Environmental Management
OC Logistics, Planning and Management Services
OD. Transportation and Operations
Reset
Next
Answer:
Transportation and Operations
Explanation:
I took the test
To vaporize water, which means turning liquid water into a
the ___
bonds between water molecules must be
This requires a lot of heat ______, which is great for
life on Earth, as it means most water is found as a
Jamal and Sarah are investigating osmosis in potatoes. The drawing shows their *
experimental setup. They immersed a firm, freshly peeled potato into a container
with a solution provided by their science teacher, Ms. Stewart (Fig. 1). The next
day, they observed that the potato had shrunk and softened (Fig. 2). Describe the
nature of Ms. Stewart's solution and why the potato shrank?
Fig. 1
Your answer
24 hours
Fig. 2
The result of the experiment suggests that Ms. Stewart's solution was hypertonic, and that the potato shrunk because water moved by osmosis in favor of its concentration gradient from the potato to the solution.
What is osmosis?
Osmosis is a simple diffusion transport that occurs when water moves from a more diluted solution to a less diluted one through a semipermeable membrane.
When two solutions of different concentrations are separated by a membrane (with the same properties as the cell membrane), the only molecule allowed to pass from one side to the other is water (not solute molecules).
Water goes from the hypotonic solution (less concentrated) to the hypertonic one (more concentrated), and keeps doing so until concentrations on both sides get equal.
In the exposed example,
A fresh potato was placed on a solution of unknown solute concentration.
There were two options for this potato,
If the solution was hypotonic to the potato, the potato would have gained water. This means that water would have moved from the solution to the potato, and this last one would have swelled.
If the solution was hypertonic to the potato, the potato would have lost water. This means that water would have moved from the potato forward to the solution, and the potato would have shrunk.
After a day, Jamal and Sarah noticed that the potato shrunk.
This result suggests that Ms. Stewart's solution was hypertonic and that the potato shrunk because water moved by osmosis in favor of its concentration gradient from the potato to the solution.
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Which is NOT true about cells?
Question 4 options:
Cells are in all living things
Every type of cell performs the same function
Cells can reproduce
Cells take in food and use energy
Answer:
B
Explanation:
3 type of cells that perform different functions
Answer:
every cell type preforms the same function
Explanation:
Topic - drug testing
Employers can determine if job candidates or current workers use drugs, including prescription medications, illegal substances, and alcohol, by conducting workplace drug tests.
Drug testing can be important for jobs of athletes, police officers, intelligence officers, surgeons and other medical staff etc.Pros and Cons of workplace drug-testing:
Pros
Encourage your staff to take on more responsibilities.Determine which workers require assistance.Improve the workplace's health and safety.Cons
Drug testing at work can't really be utilized as a safety precaution because they don't track drug use in real time. When they are aware that they will be subject to a drug test, many job applicants just stop using drugs.Drug tests are not always reliable.A business should take into account the following four important aspects when thinking about any employment screening program:
costrisk reductionspeedcandidate experienceBusinesses that emphasize risk reduction should seriously consider implementing a drug-free workplace policy. Drug testing can shield workers from harm and boost output in addition to being beneficial in preventing accidents, health problems and costs, absenteeism, and litigation.Drug testing, however, can also be pricey, slow down the hiring process, and have a bad impact on the candidate experience.If someone has a false positive drug test and they are confident that they don't do drugs, then they should be given another chance on the basis of their past medical history.
The company should bear the costs of the test since it was in their policy for all the candidates to undergo the test. Exceptions can be made based on their past medical record.
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Which two areas are covered in the study of physical science?
A. geology and chemistry
B.
geology and astronomy
C. physics and mathematics
D. chemistry and physics
Answer:
D
Explanation:
chemistry and physics
dentify the role of the hypothesis in science
Answer:
The hypothesis is your prediction of an experiment that can disprove or corroborate the findings. It is written before the experiment and is the theory of the observation.
Explanation:
which location is most commonloy used by veterinary professionals to take a animals pulse
Answer:
The easiest way to take a pulse is to put your hand on the left side of your pet's chest where the elbow meets the chest. At this location, one should be able to feel the heart beating. Count how many times you feel the heartbeat for 15 seconds and then multiply by four to calculate beats per minute.
Explanation:
Answer:
On the left side of the animals chest
Explanation:
Which of the following cells is formed by meiosis?
O A. A brain cell
O B. A bacterial cell
O C. A stem cell
• D. An egg cell
Answer:
D. An egg cell
Explanation:
Meiosis is the type of cell division that creates egg and sperm cells.
∴ The only answer stated from the statement is D.
PLEASE HELP DUE SOON! IM SO CONFUSED!
Write a brief story about Timmy, who accidentally walked into a rose bush, describing the reflex arc in biology 30 level detail.
When Timmy steps on the rose bush, the sensory receptor on his toe receives the stimuli, sends it the spinal cord through a sensory neuron which they initiates a response sent through a motor neuron to the muscle and he withdraws his leg in pain.
What is a reflex arc?A reflex arc refers to the neuronal pathway which controls a reflex action.
A reflex action is an action which occurs involuntarily.
Examples of reflex actions include thhe following:
withdrawing the foot quickly when one steps on a sharp objectwithdrawing the hand quickly when one touches a hot surfacethe je_rking of the kneecoughing or sneezing, when irritants enter the nostrils.Reflex actions do not need to involve the brain, hence they occur very quickly.
The path of a reflex arc begins with a sensory receptor which receives the stimuli, travels to the spinal cord through a sensory neuron which they initiates a response that is sent through a motor neuron to an effector such effector such as a skeletal muscle.
In conclusion, a reflex arc is the path of a reflex action through the body.
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What is invasive plants ?
(Write a lot and don’t use big words)
An invasive plant is a plant that is not native to the region it is growing in. For example, English Ivy is native to Europe but has invaded the North Western coast of North America.
Explanation:Characteristics of Invasive Plants
Invasive plants are usually very fast-growing. Their population can be hard, if not impossible to control. Additionally, like all invasive species, invasive plants place a strain on their environment. One way or another, invasive plants hurt the ecosystem they are in. This can involve the invasive plant taking up resources from native plants and/or being toxic to native animals.
We can see these characteristics in English Ivy. Like most ivies, English Ivy grows on trees and other large plants. English Ivy can become so overgrown that it weighs down the plant it is grown on. This extra weight can kill native plants. Also, due to the speed at which Ivy spreads, environmentalists have been unable to eradicate English Ivy from North America.
Causes of Invasive Plants
In almost every instance of invasive plants, the cause is human action. Through travel, humans bring seeds and plants to regions they are not native to. Then, in some cases, the plant will begin to grow rapidly and become invasive.
English Ivy was brought to North America during the Columbian Exchange.
The Columbian Exchange was the exchange of vegetation and livestock between Europe, Africa, and the Americas during the Age of Colonialism. Many invasive species can be tied back to the Columbian Exchange.English Ivy was then used as decoration both indoors and outdoors. Since then, it has grown into a dangerous invasive plant.
kinetic energy is transformed to potential energy by mitochondria and chloroplasts true or false
Click the link below to access the prompt options for this writing task. Review the 8 prompt choices, and then choose which ONE prompt you will respond to for this essay. Prompt Choices: Genetics and Ethics Argumentative Essay Prompts.pdf After choosing your prompt, copy/paste the following questions and type your responses in the box below. 1) Which prompt are you choosing for this writing assignment? 2) Who is the audience for your argumentative report? 3) How many paragraphs should your report be? 4) True/False. You should cite reliable sources (like .edu, .org) in your report.
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Explanation:
Food webs, food chains, and trophic levels are all tools to help ecologist understand which of the following
A. The climate of an ecosystem
B. The types of animals that exist in an ecosystem
C. The energy flow within an ecosystem
D. The size of an ecosystem
The energy flow within an ecosystem.
Animals can utilize both radiant and fixed energy. The fundamental unit of electromagnetic waves like light is radiant energy. Fixed energy is chemical potential stored in various organic materials that can be damaged to release their energy.
Autotrophs are organisms that can fix radiant energy and can synthesize organic compounds from inorganic materials. Heterotrophs are organisms that cannot receive energy from an abiotic source but rely on organic compounds produced by autotrophs that are rich in energy.
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Explain why the researcher chose to use the quadrat method rather than
mark and recapture to sample the coral population.
The researcher chose to use the quadrat method rather than mark and recapture to sample the coral population because corals are sessile, which means they are immobile. For a sample that exhibits mobility, the mark recapture approach is employed. i.e., being movable.
Quadrat Method- In ecology, geography, and biology, a quadrat is a frame that is typically square and is used to isolate the standard unit of space for the study of an item's distribution over a vast region.
Mark Recapture Technique- When it is impracticable to count every person in a population, the Mark-Recapture approach is employed to estimate its size.
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Juan received a class assignment to write about organisms that live in extreme environments. While doing research online, he found an image that showed microbial bodies thriving in hot springs. The organisms lacked a nucleus or defined organelles. Which organisms can he possibly find in such conditions?
Smoke and dust particles elevate from the ash in a forest.
A.
plant-like protists
B.
animal-like protists
C.
fungus-like protists
D.
archaea
Reset Next
Pretest: Organization of Organisms
© 2022 Edmentum. All rights reserved.
Answer:
D. archea
Explanation:
Which scenario is an example of making inferences based on observations?
OA. A scientist collects honeybee specimens from each part of the life
cycle and creates a display.
OB. A scientist talks to various organizations about the importance of
preserving habitats vital to the survival of bees.
OC. A scientist publishes an article encouraging local farmers to plant
wildflowers to benefit wild bee populations.
D. A scientist analyzes the feeding patterns of honeybees and
determines that honeybees prefer nectar over pollen.
The example of making inferences based on observations is:
A scientist analyzes the feeding patterns of honeybees and determines that honeybees prefer nectar over pollen; option DWhat are inferences and observations?In the scientific method, observations and inferences are key step which help in understanding and explanation of the natural world.
Observation refers to the ability of the scientist to note and see changes or phenomena that occurs i his or her environment.
Inferences are conclusions which are drawn from either observations or experiments.
Considering the given scenarios, the instance of an observation is;
A scientist analyzes the feeding patterns of honeybees and determines that honeybees prefer nectar over pollen.In conclusion, observations are required in making of inferences.
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The stimulus of a temperature change would NOT cause which of the following responses in a fish? Swimming to a different location Growing extra gills Change in activity level Change in eating habits
Answer:
Growing extra gills
Explanation:
That's impossible
Answer:
growing extra gills is the answer
why is the earths atmosphere likened to a greenhouse?
Answer:
That'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. earth's atmosphere is like the glass in a greenhouse because sunlight streams through the atmosphere and heats the Earth. As the heat radiates up from the Earth's surface, some escapes into space. The rest of the heat is absorbed by gases in the troposphere and warms the air.Greenhouse gases include carbon dioxide, methane, nitrous oxides, and water vapor. (Water vapor, which responds physically or chemically to changes in temperature, is called a "feedback.") Scientists have determined that carbon dioxide's warming effect helps stabilize Earth's atmosphere.greenhouse gases in the atmosphere absorb some infrared radiation and re-reflect it back to earth. 6. This causes the green house effect and results in an increase in average mean temperatures on earth.Greenhouse gases include carbon dioxide, methane, nitrous oxides, and water vapor. (Water vapor, which responds physically or chemically to changes in temperature, is called a "feedback.") Scientists have determined that carbon dioxide's warming effect helps stabilize Earth's atmosphere
Explanation:
Greenhouse gases include carbon dioxide, methane, nitrous oxides, and water vapor. (Water vapor, which responds physically or chemically to changes in temperature, is called a "feedback.") Scientists have determined that carbon dioxide's warming effect helps stabilize Earth's atmosphere
In TV shows and movies, the word mutant refers to characters born with abilities unusual for humans. What do you think scientists mean when they talk about a genetic mutation?
Do you think all genetic mutations are harmful? Explain your answer.
Answer:
A gene variant is a permanent change in the DNA sequence that makes up a gene. This type of genetic change used to be known as a gene mutation,but not all genetic mutations are harmful .The majority of mutations have neither negative nor positive effects on the human or the organism itself.
Explanation: (In the answer as well)
hope this helped !!!!!! :)
The primary cell wall surrounds the cell, and is composed of
Answer:
Cell wall is composed of cellulose.
Explanation:
*_*
Huntington's disease is an inherited autosomal dominant disorder that can affect both men and women. Imagine a couple has had seven children, and later in life, the husband develops Huntington's disease. He is tested and it is discovered he is heterozygous for the disease allele, Hh. The wife is also genetically tested for the Huntington's disease allele, and her test results show she is unaffected, hh.
What is the percent probability that the first child of this couple will have Huntington's disease?
probability: %
What is the percent probability that four of the seven children will have Huntington's disease?
probability: %
1. The percent probability that the first child of the couple will have Huntington's disease is 50%
2. The percent probability that four of the seven children will have Huntington's disease is 6.25%
Genetical probabilitiesThe disease is autosomal dominant. Only one dominant allele is needed for the disease to be manifested.
The husband is Hh and the wife is hh.
Hh x hh
Hh Hh hh hh
Hh (affected) = 1/2
hh (unaffected) = 1/2
1. Probability that the first child of this couple will have Huntington's disease is the same as the probability of having the disease. Thus, it is 1/2 (50%)
2. Probability that four of the seven children will have Huntington's disease is the same as the probability of having the disease in 4 places.
1/2 x 1/2 x 1/2 x 1/2 = 1/16 or 6.25%
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Renee has just completed her experiment for biology lab and cleaned up her lab area. The bell rings for her to go to her next class. What should Renee do before she leaves the laboratory?
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.
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What is different between plant and animals
11 Answer:
The 1990 law that required food labels to carry basic nutrition
information is the _____ Act.
12 Answer:
Polyhydric alcohols or polyols such as glycerine, sorbitol,
mannitol, and propylene glycol are used in foods to improve _____ and
increase moisture retention.
13 Answer:
Food _____ is the altering of a food so it appears to be of a
higher quality than it is.
11.) The 1990 law that required food labels to carry basic nutrition information is the Nutrition Labeling and Education Act.
12.) Polyhydric alcohols or polyols such as glycerine, sorbitol, mannitol, and propylene glycol are used in foods to improve texture and increase moisture retention.
13.) Food processing is the altering of a food so it appears to be of a higher quality than it is.
What is food processing?Food processing is the act of changing the texture and structure of food products in order to
their taste and prolong their shelf life.
While processing foods, some additives are used to improve texture and increase moisture retention such as the Polyhydric alcohols.
Examples of Polyhydric alcohols include the following:
glycerine, sorbitol,mannitol, and propylene glycol.After processing of food, an act called the Nutrition Labeling and Education Act help consumers to make better choices and they encourage food companies to produce healthier food.
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similarities between ecosystem approach and ecosystem management
Explanation:
balances both human and nature's needs
protect and mange the environment
protecting the earth and its species from potential harm
The similarities between the ecosystem approach and ecosystem management are:
Balances both human and nature's needsprotect and manage the environmentprotecting the earth and its species from potential harmWhat is an ecosystem approach?The ecosystem approach is the term by which the management of the animals and plants and other living resources. The conservation or property use of these resources comes under an ecological approach.
The management of ecological services and biological resources is managed under this management system. This system also sees what extent these resources are using.
Thus, the similarities between them are:
Maintain and manage the environment.Protects the earth and its species from potential harm.Balances human and natural requirements.To learn more about the ecosystem approach, refer to the link:
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Which of the following statements about electromagnetic radiation is true?
The shorter the wavelength, the more energy is carried.
The sun produces a low-energy radio waves.
The sun produces high-energy gamma rays.
All statements are correct.
Each of the claims is true. Let's look at the following as an explanation for this:
A wave's energy is directly inversely related to its frequency. As a result, as frequency increases, wavelength decreases and wave energy increases. Solar radiation, which is a subset of the vast range of energy known as the electromagnetic radiation spectrum, is how the entire amount of solar energy that reaches the Earth. Infrared, radio waves, X-rays, gamma rays, ultraviolet light, and visible light are all types of solar radiation. One technique to transport heat is by radiation.
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What was the calculated concentration of protein of Serum Specimen A? To receive credit,
report the value as a whole number and the units of measure!
By making use of a standard curve made up of known quantities of a pure sample protein, protein concentration is calculated. The type of chemical used can be used to separate these protein test techniques into two groups.
Either assessing the UV absorbance at 280 [tex]nm[/tex] or quantitatively reacting the protein with dyes and/or metal ions can be used to figure out the protein concentration of sample preparation (Bradford, Lowry, or BCA assays). Simply multiply the dilution factor by the undiluted, unknown sample's protein concentration to determine its concentration. 0.5 x 10 equals 5 [tex]\frac{mg}{ml}[/tex]. By contrasting the colour produced by the "unknown" solution with the colour generated by solution of known proteins, or the standard curve, one can determine the protein content of an unknown.
The complete question is :
How to calculate the concentration of protein of Serum Unknown undiluted Specimen A? To receive credit, report the value as a whole number and the units of measure.
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