Answer:
The periodic table _____.
1. is arranged by atomic mass
2. is arranged by number of protons
3. was developed by early alchemists
4. is divided into vertical periods and horizontal groups
Explanation:
Answer:
of elements
Explanation:
Only thing that makes sense, because that's the complete name
Which domain(s) is/are made up of organisms without nuclei?
Answer:
Archaea
Explanation:
All of life can be divided into three domains, based on the type of cell of the organism: Bacteria: cells do not contain a nucleus. Archaea: cells do not contain a nucleus; they have a different cell wall from bacteria. Eukarya: cells do contain a nucleus.
Answer:
ARCHAEA is yr ANSWER..
Evidence that agrees with your prediction supports your
What??????
Answer:
I think the answer is hypothesis
Devon is playing with a yo-yo. A yo-yo has an axle in the middle of two plastic halves. A string is tied around this axle. As Devon moves his hand, the yo-yo goes up and down. The yo-yo converts potential energy to kinetic energy as it moves. Which of the following pictures represents the yo-yo with the most potential energy? A. X B. Y C. Z D. W
Answer:
second image or B. Y
Explanation:
Potential energy is defined as the stored energy of an object when work is done against a force.
The second image in which yo-yo is ready to stretch out, represents the yo-yo with the most potential energy because the distance is highest from the ground and so yo-yo at this position will have highest gravitaional potential energy. The potential energy will be converted into kinetic energy when released in air.
Hence, the correct image is "second image" or "B. Y"
Why are male cats unable to express both orange and non-orange colors simultaneously in the same way as female cats?
O male cats only have one X chromosome
O only female cats inherit non-orange genes
O male cats have a dominant Y chromosome
only female cats inherit orange genes
The gene that codes for orange/non-orange color is X-linked. Female cats can express orange and non-orange simultaneously. Males, who only have one X chromosome, can express either orange or non-orange.
-----------------------------------------------
Male cats can only express one or two coat colors, but not three as females do. The combination of three simultaneous colors seems to be exclusive for females.
In cats, hair color is coded by different genes. In the particular case of orange color, we are referring to a codominant, diallelic, X-linked gene. Chromosome Y does not have an associated gene for the orange color.
The orange gene is diallelic, being
O the dominant allele ⇒ codes for orange ⇒ inhibits the expression of blacko the recessive allele ⇒ codes for not-orange ⇒ allows the expression of blackMales, who carry only one X chromosome, can be either
orange ⇒ X⁺Y (Where + symbol represents the dominant allele O)non-orange ⇒ X⁻Y (Where - symbol represents the recessive allele o)But, since females carry two X chromosomes, they can express either
orange ⇒ H0m0zyg0us dominant ⇒ X⁺X⁺ non-orange ⇒ H0m0zyg0us recessive ⇒ X⁻X⁻ combination of black and orange ⇒ Heter0zyg0us ⇒ X⁺X⁻----------------------------------------
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what are the photoautotrophs?
Answer:
Photoautotrophs are organisms that carry out photosynthesis. Using energy from sunlight, carbon dioxide and water are converted into organic materials to be used in cellular functions such as biosynthesis and respiration
Explanation:
the example of photoautrophs are
Examples of phototrophs/photoautotroph include:
Higher plants (maize plant, trees, grass etc)
Euglena.
Algae (Green algae etc)
Bacteria (e.g. Cyanobacteria)
Algae are photoautotrophs found in most ecosystems, but they generally are more important in water-based, or aquatic, ecosystems. Like plants, algae are eukaryotes that contain chloroplasts for photosynthesi
The diagram below represents an energy pyramid.
Consumer 3
Consumer 2
Consumer 1
Producer
Which statement concerning the energy in this
pyramid is correct?
A. Consumer 3 contains the greatest amount of
stored energy.
B. Stored energy decreases from Consumer 2 to
Consumer 3.
C. Stored energy increases from Producer to
Consumer 1.
D. Producer organisms contain the least amount of
stored energy
Answer:
B)stored energy decreases from consumer 2 to consumer 3
stored energy decreases from consumer 2 to consumer 3, concerning the energy in this pyramid is correct. thus option B is correct.
what are consumers in food chain ?In a food chain there are two types of organism present producer which are mainly green photosynthetic plants, consumers which are depend on producers.
the primary difference between the position of producers and position primary consumers in the food chain are Primary consumers consist of the second level of the food chain, while producers make up the third level of the food chain.
The producer can autotropic organism as they make their own food whereas consumers are heterotrophic organism as they depend on producers for their nutrition.
consumers are classified into primary, secondary, quaternary and tertiary consumers which are herbivore, carnivore and omnivore respectively in nature based on their nutrition.
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Which characteristics do all living things share?
A.
having the ability to communicate
B.
being composed to one or more cells
C.
being able to breathe air
D.
the tendency to live in groups
Answer:
being composed of one or more cells
The cell bodies of motor neurons to skeletal muscles are located in the A. Posterior/dorsal gray horns B. Limbic system C. Anterior/ventral gray horns D. Gray commissure
The cell bodies of motor neurons to skeletal muscles are located in the anterior/ventral gray horns.
Neurons are cells characterized by a body (called soma), and different kinds of prolongations that will have the task to carry the information to other neurons or tissues - these prolongations are axons (which are usually very long) and dendrites (much shorter than axons).
The motor neurons are the ones that conduct the electric impulse from the motor cortex in the brain to the skeletal muscles in our bodies, making muscle contraction and movement possible.
There are two types of motor neurons:
Upper motor neurons: Their cell bodies are located in the motor cortex in the precentral gyrus of the brain. Their axons synapse onto interneurons in the spinal cord.Lower motor neurons: These neurons have their cell soma located in the anterior gray horns of the spinal cord - from that place, their axons will exit the spine to reach the skeletal muscles that we want to contract to perform specific tasks such as running or grabbing a glass of water.Thus, we can conclude that the somas of lower motor neurons that transmit its impulse to skeletal muscle are located in the anterior gray horns of the spinal cord.
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"How are the peppered moths of 19th century England, during the Industrial Revolution, proof of evolution?"
The purpose of an experiment is to compare results with a(n)
answer
anday
theory
hypothesis
esday
variable
The first genomic libraries were cloned in:__________.
a) plasmid
b) bacteria
c) human
d) plants
Answer:
A. Plasmid
Explanation:
The first genomic libraries were cloned in plasmid. Thus option A is correct.
What is genomic library ?
A library is constructed by using a collection of the total genomic DNA from a single organism.
Genomic library construction involves the isolation of genomic DNA from a target organism, purification of the genomic DNA followed by fragmentation by using restriction enzyme into desired size,
The cloning of the fragmented DNA using a desired vector. The vector are different depend on the insert size of DNA.
The most common vectors are Escherichia coli or yeast and using these vectors easy amplification and retrieval of specific clones can be done which can further be used for analysis.
Genomic libraries are majorly used in for whole genome sequencing applications including the human genome and several model organisms.
Thus option A is correct.
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Would you use an observational, experimental, or modeling approach to study a rare, endangered bird species
Answer:
The correct answer would be - observational approach.
Explanation:
Observation approach is the research technique that involves the observation of the subject or participates behavior in their natural habitat or state. This will be one of best approach to study.
Similarly when characterizing new findings various aspect of experimental, Observational details or modelling approaches will help in identification , classification and nomenclature. However, in comparison to experimental and modeling approach is more appropriate method for the rare endangered species.
Thus, the correct answer would be - observational approach.
Which of the following best describes what happens to an enzyme after it catalyzes a chemical reaction? (5 points)
Please I need help !!!
The majority of thyroid hormones are secreted as ______but small amounts of _____is also secreted from the follicle.
Answer:
The correct answer is - T4, and T3.
Explanation:
The Thyroid glands are butterfly shape glands madeup of microscopic spherical structures known as thyroid follicles made up of cuboidal follicular cells. These cells produces the both major hormones of thyroid gland T4, and T3.
The majority of thyroid hormones are produced as T4 hormones approximately 80% but a small amount of 20% is released in the form of T3 hormones. However, the most active form of the thyroid hormone is T3 and to act on target cells, one iodine molecule have to be removed to convert T4 to T3.
Bile:_______
A. digests proteins in the small intestine.
B. emulsifies fats in the small intestine.
C. is made by the gallbladder and stored by the liver.
D. activates trypsin in the small intestine.
E. activates the pancreas.
⚘ Emulsified fats in the small Intestine (B)
Explanation:-Bile is not an enzyme which is made in the liver which helps in the emulsification of fats. Here, Emulsification means the break down of larger molecules of fat into small molecule. The bile is temporarily stored in the Gall Bladder.
The bile juice is then released into the duodenum(the first part of small intestine) through hepato pancreatic duct. The duct carries both enzymes of pancreas and bile. They digest the food in the small intestine[tex].[/tex]
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is a non active lifestyle that increases your risk for heart disease and numerous
other health problems.
wellness
Proactive
Sedentary
Healthy
Answer:
physical inactivity
An inactive lifestyle is a risk factor for coronary heart disease. Regular, moderate to vigorous physical activity helps reduce the risk of cardiovascular disease.
A student completed a lab report. Which correctly describes the difference between the "Question" and "Hypothesis"
sections of her report?
Answer:
A question is what your looking to solve in the experiment, and a hypothesis is a possible explanation to that question.
Explanation:
The question is usually one of the first steps you do when setting up an experiment, as it is what you are looking to solve. The hypothesis can change throughout the experiment as more details come up, but in the beginning of the experiment it is a proposed explanation based on limited proof.
I hope this helps!
-The Business Man
From where digestion of carbohydrates begins
Answer:
it begins in the mouth
Explanation:
when we chew food, salivary amylase in the saliva starts the breakdown of carbohydrates.
There you go! (＾▽＾)
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The digestion of carbohydrates or sugars starts from the Buccal cavity (or mouth) itself because of the salivary amylase secreted by the salivary glands.
There are three pair of salivary glands which release saliva that helps in the partial digestion of carbohydrates. The food is first masticated by the teeth with the help of tongue and slowly digested partially.
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Do all cells in the population express insulin receptor on their surface? Is this expression dependent on the presence of insulin? Explain.
Corporations measure their wealth in revenue. True False
Answer:
false
Explanation:
The average lifespan a tortoise is 200years. How many scores is this?
*i don’t know what it means by scores but that’s the question i received*
Answer:
A score is 20.
So 200÷20=10.
You can find 10 scores in 200.
Answer:
Explanjtyj6isnhgoi eut
what are the recommended servings of fruits and vegetables per day? 11-15, 3-4, 1-2, or 5-10 servings per day?
Answer:
Hi! The answer is 1-2.
Explanation:
Depending on their age and sex, federal guidelines recommend that adults eat at least 1½ to 2 cups per day of fruit and 2 to 3 cups per day of vegetables as part of a healthy eating pattern.
Hope this helped!
Answer:
5-10 servings per day
Explanation:
a weight loss client is currently exercising 5+ hours a week and hits a plateau what adjustments should a trainer suggest?
A. increase k/cal by 250, decrease k/cal by 100, C. increase k/cal by 100 OR D. Decrease k/cal by 250
Answer: D. Decrease k/cal by 250
Explanation: An individual can be said to habe hit a plateau, if such person fails to get or feel any noticeable changes or experiences stagnation in the quest to achieve a certain level. In the context of exercising and shedding body fat using the scenario above, the client was currently exercising at 5+ hours per week, when she started, there was visible changes, however, after some time, she discovered that the changes had become stagnated and it was just all the same, such person could be said to have hit a plateau, to curb this, since the client is aiming to lose weight, such person should decrease daily intake of calories per day by 250. These remains a reduction in the daily fat intake and then the client reassess if there is a noticeable change.
Bree Wakefield is a 19-year-old college student, living in a dormitory on the campus of her university. She started to feel poorly and began to miss classes. She went to the student health center and was immediately referred to the hospital. She was diagnosed with a disease of the CNS - these are her symptoms:
● Fever
● Stiff neck
● Drowsiness
● Vomiting
● Severe headache
● Rash
● Light sensitivity
● Beginning stages of kidney failure
Answer:
Explanation:
After seeing her symptoms at the student health center, she was immediately referred to a hospital. In the hospital she was diagnosed with a disease of CNS (central nervous system). The primary cause of a CNS infection is a result of the communication of an infectious disease. In these diseases, some are contagious and spread easily among the people and other types are also infectious and spread by pathogen organisms.
Step 2
Based on the symptoms of stiff neck, fever, vomiting, and light sensitivity, she was suffered by the meningococcal meningitis. The reason behind this diagnosis is that these symptoms are majorly impacted this diagnosis. Meningococcal meningitis is a bacterial form of meningitis. It is an infectious disease caused by Neisseria meningitidis bacteria. It is a serious infection of the thin lining that surrounds the brain and the spinal cord.
Step 3
Initial diagnosis of the meningococcal meningitis disease can be made by the clinical examination followed by a lumbar puncture (spinal tap) showing a purulent spinal fluid. The bacteria can be seen in the microscopic examination of the spinal fluid. Lumbar puncture is a medical procedure (test) in which a needle is inserted in the spinal canal ...
In a nutrient medium that lacks histidine, a thin layer of agar containing around 10^9 Salmonella typhimurium histidine auxotroph produces around 13 colonies over a two day incubation period at 37 degrees centigrade. How do these colonies arise in the absence of histidine? The experiment is repeated in the presence of 0.4 micrograms of 2-aminoanthracene. The number of colonies the number of colonies produced over 2 days exceeds 10,000. What does this indicate about 2- anthracene? What can you surmise about its carcinogenicity?
Answer:
Reverse mutations in the colonies enabled to recover the ability to synthesize histidine. The 2-aminoanthracene is a chemical agent that induce mutations and therefore it is potentially a carcinogen.
Explanation:
A reverse (suppressing) mutation is a type of mutation capable of restoring the activity of previously mutated genes. On the other hand, 2-aminoanthracene is an aromatic amine carcinogen capable of inducing hepatic and skin tumors. In this case, 2-aminoanthracene has been used to induce reverse mutations at loci responsible for the synthesis of histidine.
How do the HIV/Aids pandemic statistics vary around the world?
Answer:
HIV (human immunodeficiency virus) causes AIDS (Autoimmune deficiency syndrome) and reduces the ability of body to fight infection.
HIV was first found in 1959 in a man from Democratic Republic of the Congo and then announced as a world pandemic by WHO.
Approximately 37.9 million people were infected with HIV globally in 2018 but the pandemic statistics vary around the world. Sub-Saharan Africa was most infected region from HIV in 2018 where 61% population was infected from HIV/AIDS. In South & South-East Asia, about 12% of all people infected with HIV in 2010.
Now WHO announced HIV as 'global epidemic".
If you have a density of 100kg /L and a mass of 1000 units , tell me the following : First what are the mass units
Answer:
Mass units are equal to Kg
Explanation:
As per the requirement of the question, the data provided to compute the mass units is
Density = 100 Kg/L
Mass = 1000 units
According to the given situation, the mass units is presented below:-
As we know that the
Mass units are equal to Kg
Therefore, for determining the mass units we simply equal the Kg.
Which species is most likely to exhibit clumped dispersion?
what is the function of a carbohydrate to living things?
Answer:
Carbohydrates provide living things with short term energy
Explanation:
Plants use photosynthesis to make
A. sugar
B. carbon
C. carbon dioxide
D. water
Answer:
A. sugar
Explanation:
Photosynthesis is the process where plants convert light into sugar, which allows them to eat and survive!
Answer:
A. sugar
Explanation:
Plants take in oxygen from the surrounding air and convert it into simpler form of sugar like glucose