Answer:
A nominal scale describes a variable with categories that do not have a natural order or ranking. You can code nominal variables with numbers if you want, but the order is arbitrary and any calculations, such as computing a mean, median, or standard deviation, would be meaningless.
A nominal scale is a scale (of measurement) that uses labels to classify cases (measurements) into classes. Some examples of variables that use nominal scales would be religious affiliation, sex, the city where you live, etc. Example. One example of a nominal scale could be "sex".
For example, Race is a nominal variable having a number of categories, but there is no specific way to order from highest to lowest and vice versa.
Explanation:
Which substance is NOT a known carcinogen?
a) latex
b) tobacco products
c) radiation
d) sunlight
Carcinogens are the agents that cause cancer in an organism and can be man-made or natural. Latex is not a type of carcinogen. Thus, option a is correct.
What are carcinogens?Carcinogens are the substances that can be a chemical or a biological compound that are capable of causing cancers. They can be natural agents like UV rays from sun, solar radiations, or viruses or can be a man-made substance like tobacco, nicotine, fumes.
These substances are capable of causing genetic mutations by altering the genomic sequence and the nitrogenous base that affects the genotype and the phenotype. The carcinogens leads to growth of abnormal and cancerous cells. Latex is a secondary metabolite that doe not causes cancer.
Therefore, option a. latex is not a carcinogenic agent.
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An ecosystem is represented below.
Key
A lege eeee eeee eeee eeee u sees
= Ocean surface
eeee
= Algae and
seaweed
co
जीनि
= Fish
= Mud and
sediments
The organisms represented as feet are found in the area shown due to which factor?
pH
B. sediment
C. light intensity
D. colder temperature
Answer:
C. Light intensity
Explanation:
they need light to grow so they stay near the ocean surface because that's where the most light is
what enzyme can proof-read the dna molecule, minimizing the mistakes made during the process of dna replication?
DNA polymerase enzyme can proofread the DNA molecule, minimizing the mistakes made during the process of DNA replication.
Fortunately, cells have developed extremely complex mechanisms to correct most but not all of those errors. Some of the errors are fixed during replication in a step known as proofreading, while others are fixed in a step known as mismatch repair after replication. Replication is halted when an erroneous nucleotide is added to the developing strand because it has an exposed 3′-OH group that is in the incorrect location. DNA polymerase enzymes notice this during proofreading and swap out the wrongly inserted nucleotide to allow replication to proceed. About 99 percent of total corrections can be corrected through proofreading, but that is still insufficient for healthy cell activity.
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In two or more complete sentences, describe an activity you perform that has an impact on climate change? Is it positive or negative? Can it be adjusted to improve our climate? Justify your answers in two or more complete sentences. Write your answer in the essay box below.
Answer:
Burning of woods has a negative impact on the climate.
Explanation:
Burning of woods for heating has a negative impact on our climate because it releases carbondioxide gas which is a greenhouse gas that trapped the reflected solar radiation and leads to global warming. We have to used alternative methods for heating such as electric heater instead of burning of wood which produce no pollution and can fulfill the requirement of heating so from the above discussion we can say that the activity has a negative impact on the environment.
Categorize all the components involved in photosynthesis as either matter or energy!
In photosynthesis, matter components are chlorophyll, water, carbon dioxide and glucose. Energy components are light energy, chemical energy, thermal energy.
Matter:Chlorophyll: a pigment found in the chloroplasts that absorbs light energy
Water: a molecule that is oxidized during the light-dependent reactions
Carbon dioxide: a molecule that is used as a source of carbon for the synthesis of organic compounds
Glucose: a simple sugar produced as a result of the light-independent reactions.
Energy:Light energy: energy from the sun that is absorbed by the chlorophyll to drive the reactions of photosynthesis
Chemical energy: energy stored in the bonds of glucose and other organic compounds produced during photosynthesis
Thermal energy: energy in the form of heat that is released as a byproduct of the reactions of photosynthesis.
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In toxicity testing, the dose of a chemical above which there is a measurable decline in the health of the organism being tested is referred to as
In toxicity testing, the dose of a chemical above which there is a measurable decline in the health of the organism being tested is referred to as the toxicity threshold.
A level of the dose above which the toxic effects of the dose can be observed in an organism is known as the toxicity threshold.
Below the threshold dose, no toxic effects are observed. Toxicity testing, also referred to as safety testing or toxicity analysis, is the study of the extent to which an interested substance adversely affects an organism’s normal functions, based on exposure time, exposure route, and concentration of the substance.
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Give three ways the human body would change if all cells in the human body were the same.
If LaL turns into a gel when exposed to a sample, it means the sample is contaminated with gram-negative bacteria
It is true that If LaL turns into a gel when exposed to a sample, it means the sample is contaminated with gram-negative bacteria.
Both the color and the turbidity of LAL are used to identify endotoxins. The mixture turns yellow when the kinetic chromogenic LAL reagent reacts with endotoxins. By looking for pyrogenic responses in horseshoe crab blood cells, this identifies the presence of bacterial endotoxins. The outer membrane of Gram-negative bacteria contains endotoxins. In order to ensure product safety and quality in the medical and pharmaceutical industries, their detection is essential. Gram-negative bacteria's outer membrane and cell wall are primarily made up of endotoxins.
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(complete question)
If LaL turns into a gel when exposed to a sample, it means the sample is contaminated with gram-negative bacteria.
true or false.
What could have been a valid conclusion on the basis of Mendel's experiments ?
The differential inheritance of genes for two different traits may be a valid conclusion based on Mendel's experiments.
Mendel concluded that traits can be divided into overt and latent traits. He named these dominant and recessive traits respectively. Dominant traits are traits that are inherited unchanged by hybridization.
The key principles of Mendelian inheritance are summarized by Mendel's three laws: Law of Independent Collection, Law of Domination, Law of Separation.
Through his pea breeding experiments, Mendel developed his three principles of inheritance that account for the transmission of genetic traits before anyone knew of their existence. Mendel's discoveries greatly expanded our understanding of heredity and led to the development of new experimental methods.
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When you don't consume enough protein, your body will start using your muscles and organs as a source of protein. T/F
It is true when you don't consume enough protein, your body will start using your muscles and organs as a source of protein.
A structure composed of amino acids. The body need proteins to function properly. They serve as the building blocks for several bodily components, including the skin, hair, and enzymes, cytokines, and antibodies.
A severe protein deficiency can hinder children's growth, contribute to fatty liver and skin, induce edema, and worsen infections. True deficiency is uncommon in affluent nations, although a low intake can lead to muscular atrophy and an increased risk of fractures.
Additionally, a lack of protein over time might cause you to lose muscle mass, which will reduce your strength, make it more difficult for you to maintain your balance, and slow down your metabolism.
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need help asap
question 9
- 20 points
What happens during the reduction?
Common reduction techniques result in oxygen loss. For instance, the reduction reaction process is used to decrease ore.
To obtain metals, build electrochemical cells and transform ammonia into nitric acid. Redox reactions, or reduction-oxidation processes, are the simultaneous reduction and oxidation of chemical substances. Oxidized species lose electrons, whereas reduced species gain them. Even without oxygen present, oxidation can still take place. Oxygen has the chemical symbol O and an atomic number of 8. It belongs to the periodic table's chalcogen group and is a very reactive nonmetal.
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The circle graph below shows the percentage of water which are used for various activities in the United States which statement about the use of water in the untied states is false
Answer:
The answer is A. industrial use of water is greater than the amount used to cool power plants.
Explanation:
it just is
Which two of the following organisms are tertiary consumers in this food web?
Answer:
Snowy owl and Rough-legged hawk
Explanation:
Hard to tell but I believe I'm correct
Why do you think a composer would want to alter or highlight a rhythm or a tone?
Answer: A composer may want to alter or highlight a rhythm or a tone to create a desired effect or mood. By emphasizing certain rhythms or tones, a composer can create a sense of urgency, tension, or excitement. Additionally, by altering the rhythm or tone, a composer can add texture or depth to a piece of music, making it more interesting and unique.
Results from a wide-range of climate model simulations suggest that the Earth's average surface temperature could be between 1. 1 and 5. 4°C warmer in 2100 than it was in 2015. Which best summarizes this information:
By 2100, the global average annual temperature will increase more than 1. 1 and less than 5. 4°C.
By 2100, the global average annual temperature will decrease more than 1. 1°C.
By 2100, the global average annual temperature will increase more than 5. 4°C.
By 2100, the global average annual temperature will decrease more than 1. 1 and less than 5. 4°C
Results from various climate model simulations suggest that the Global average temperature in 2100 could be 1.1 to 5.4 °C (2 to 9.7 °F) higher than today. The main cause of this temperature rise is "greenhouse gases" that trap carbon dioxide and other heat produced by human activity.
Global average temperature is projected to increase by 2°F to 11.5°F by 2100, depending on future greenhouse gas emission levels and the results of various climate models.
Fossil fuels release carbon dioxide, a greenhouse gas that can increase the average temperature of the earth. In a high-emissions scenario, global temperatures could rise by 4.4 degrees by 2100, says the IPCC, with potentially catastrophic consequences.
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how do mutations relate to natural selection
Which is an example of a recent development used to address food shortages in urban areas?
Answer:
A is answer
Explanation:
A recent development to address food shortages in urban areas is to create community gardens. The city usually sets aside a space for people to grow their own food.
Answer:
Its b.
Explanation:
What effect did the agricultural revolution have on the growth of the human population?
Answer: Positive and Negative
Explanation: As these early farmers became better at cultivating food, they may have produced surplus seeds and crops that required storage. This would have both spurred population growth because of more consistent food availability and required a more settled way of life with the need to store seeds and tend crops.
why does a frog have a dual mode of breathing? HOTS
This is due today, I’ll give brainliest to whoever answers with the best answer.
This is for 30 POINTS!!!!!!
DUE TODAY
Gravity holds the sun, earth, and moon together, and these three bodies engage in a variety of interactions. Due to the earth's gravitational attraction, the moon revolves the planet. And because of the sun's gravitational attraction, the earth orbits the star.
What angle is the Moon at with respect to the Sun and Earth?The Moon travels in tandem with Earth's orbit around the Sun. Despite the Earth's continued motion, the Moon must travel two additional days during its orbit, which lasts 27 1/2 days.
How near to one another are the Earth, Moon, and Sun?The Moon is 384,403 kilometres away from Earth on average. Additionally, there are 149,597,887 kilometres between the Earth and the Sun on average.
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Which of the following images shows a transition from biosphere to the
atmosphere?
Answer:
I believe it is B
Explanation:
The biosphere is where life is, which has trees. The smoke from the trees is going into the atmosphere.
Both ferns and cender trees rely on .............. To successfully fertilize themselves
Answer:
Explanation:
Both ferns and cedar trees rely on wind-dispersed pollen to successfully fertilize themselves.
Ferns are a group of vascular plants that reproduce via spores. These spores are produced in clusters called sori, which are found on the underside of fern fronds. The spores are released from the sori, and are carried away by the wind to fertilize other ferns.
Cedar trees, which are coniferous trees, also rely on wind to disperse their pollen. The male and female cones of the tree are separate, with the male cones releasing pollen into the air which is carried by the wind to fertilize the female cones on the same or nearby trees.
Both ferns and cedar tree do not produce flowers or rely on animal vectors (like bees or butterflies) for pollen transport, they use the wind to move their reproductive cells and complete the fertilization process.
The healthcare provider prescribes 375 mg of intravenous (iv) ampicillin iv every 6 hours for a 5-month-old with a recurrent respiratory infection. The drug is supplied as 500 mg of powder in a vial. The directions state that the powder should be mixed with 1. 8 ml of diluent, which yields 250 mg/ml. How many milliliters should the nurse administer? take your answer to one decimal place. ___ ml
The nurse should administer 1.5 mg of ampicillin IV to the 5-month-old patient with a recurrent respiratory infection.
Respiratory infection is the infection of the respiratory system, especially of the respiratory pathways like the nose, throat, bronchi, etc. They usually are mild in nature which can be relieved on their own, However some diseases can cause severe effects. The examples are cold, common flu, COVID-19, etc.
The amount of ampicillin can be calculated by using the Desired over Have formula, that can be expressed as:
Dose ordered / Dose Have = Amount needed to be given.
Therefore 375 / 250 = 1.5 mg
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Select the best answer for the question
20. A specific aphid is known to infest spinach, peppers, and tomatoes. How could a farmer use biological control to reduce aphids on these crops?
O A. Apply neem oil to the crops
O B. Introduce ladybugs to eat the aphids
O C. Introduce honeybees to pollinate the crops
D. Only plant crops that produce the Bt toxin
Answer:
O B. Introduce ladybugs to eat the aphids
Explanation:
In crop production, there are certain pests known to categorically affect a particular crop plant. Hence, there are ways devised to tackle this issue of pest attack on crops. One of those ways is the "BIOLOGICAL CONTROL METHOD".
The biological control method involves the use of natural enemies to combat pest organisms. The natural enemies are living organisms that prey on the so called pest organism. This is the case in this question, where a specific aphid is known to infest spinach, peppers, and tomatoes.
The farmer will employ biological control method in stopping these aphids by introducing ladybugs to eat the aphids.
An important regulator of electrolyte concentrations in extracellular fluids is .
Answer:
Mineralocorticoid
Explanation:
Answer:
Aldosterone
Explanation:
Hope this helps!
Please mark me as Brainlinieast.
scientists may make many genetically identical copies of an organism called _____
A. plasmids
B. hybrids
C. clones
D. mutants
Answer:
C. Clones
Explanation:
Clone definition: An organism or cell, or group of organisms or cells, produced asexually from one ancestor or stock, to which they are genetically identical.
Hope this helps! :3
Biodiversity Assignment
Answer:
what is the assignment on
have a good day :)
Explanation:
Answer:
What's the main question of the assignment.
Why does a single X chromosome that carriers the allele for red-green colorblindness cause males to be color blind but doesn’t cause females to be color blind
If you know the answer to this question please help! 7th grade