Answer:
When on the basis of certain facts about the object or subject we provide an explanation which is not proved is known as hypothesis.
For example, Jada says that hand sanitizers are as effective as soap in destroying bacteria.
Since, it is not proved by her and this statement shows just an explanation which is not experimentally found.
Thus, we can conclude that the statement hand sanitizers are as effective as soap in destroying bacteria, is a hypothesis.
Which of the following elements will not easily react with other elements? Explain why? – Carbon, Hydrogen, Nitrogen, Helium.
Answer:
Helium
It will not easily react with other elements as it is a noble gas. it has complete octate .the reactivity of an element depends on its outer most electron, ( or valency of it) but in helium there is no electron left to react.
¿What are Vertebrates?
[tex]{\huge \underline{{ \fbox \color{red}{A}}{\fbox \color{green}{n}}{\fbox \color{purple}{s}}{\fbox \color{brown}{w}}{\fbox \color{yellow}{e}}{\fbox \color{gray}{r } }}}[/tex]
They are further classified into: fish, amphibians, birds, reptiles and mammals.
I hope I've helped : )
which feature is characteristic of rivers?
fill the table given
Answer:
circle
expandsion
body part
under skin tissue
healthy muscle cells
What is the molarity of a 17 ml solution used to prepare 65 ml of 2.4 M
solution?
Answer:
goo khao eat some stool hahaha
what type of microscope creates a two dimensional image
fill in the blank blank factors depend on the number of organisms in a given area
Answer:
5 because those organisms multipliy or expand
Which is a reactant for the photosynthesis reaction?
A. Adenosine triphosphate B. Oxygen C. Carbon dioxide D. Glucose
answer:
carbon dioxide !!
explanation:
hope this helps you !!
if i'm wrong pls let me know lol !!
is water losing through transpiration harmful or benefical for plant
How does plant with particulate matter affect the economy
Answer:
By the roots under the so I creating a stabilized climb
Peptic ulcers are caused by damage to the wall of the stomach by the acids that help digest food.
This can be caused by the failure of
A. tight junctions
B. adhering junctions
C. gap junctions
D. plasmodesmata
E. adhering and gap junctions
Peptic ulcer disease can be caused by the failure of tight junctions. Thus, the correct option is A.
What is Peptic ulcer disease?Peptic ulcer disease may be defined as a circumstance in which bitter and painful sores or ulcers evolve in the lining of the stomach or the first part of the small intestine which is the duodenum.
A tight junction is responsible for lining the wall of the intestine or stomach. It helps in the prevention of the passage of digestive enzymes through the space between adjacent locations inside the stomach or small intestine.
If this junction breaches, it results in damage to the wall of the stomach by the acids that help digest food and causes the peptic ulcer disease which is infected by a bacterial organism known as Helicobacter pyroli.
Therefore, it is well described above.
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Scale insects can be serious pests for citrus fruits. Severe infestations of scales result in falling twigs and branches until the affected tree dies. In the early 1900s, California citrus growers sprayed their trees with cyanide gas to kill scale insects. By 1914, some scale insects were surviving the spraying, and eventually the whole population showed resistance to cyanide. Which of the following statements best explains how resistance to cyanide spread in the scale insect population?
A. Insects with a resistance gene survived the first cyanide sprayings and passed the gene to their offspring.
B. Parasites infecting the insect population carried the trait from insects with a resistance gene to insects without a resistance gene.
C. Predators put greater selection pressure on insects with a resistance gene than on insects without a resistance gene.
D. Insects without a resistance gene underwent mutation upon contact with the cyanide to acquire resistance.
Individuals exposed to a damaging factor might mutate and resist the nosive effects. D) Insects without a resistance gene underwent mutation upon contact with the cyanide to acquire resistance.
What is resistance?The term resistance refers to an inheritable change in the population sensitivity, reflected through the exposure of individuals to damaging factors (insecticides, for instance) that affects the population.
A genetic modification -mutation- might occur in some of the exposed individuals, leading them to survive under the effects of these factors.
Mutated individuals spread this new character in the population, which evolves with the capability of tolerating the element that would normally affect it.
In the exposed example, some of the exposed individuals developed a mutation after the cyanide exposure and got to survive. These individuals could mate and reproduce, transmitting this new resistant character to the following generations.
The correct option is D. Insects without a resistance gene underwent mutation upon contact with the cyanide to acquire resistance
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Which was Venter’s contribution to science?
Answer: Craig Venter was a geneticist who led the first draft sequence of the human genome.
RNA is synthesized on a DNA template in a process called ______, which utilizes the enzyme _______.
Answer:
transcription whic uses transcriptase enzyme
Explanation:
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HELP PLS FOR BRAINLIEST AND THANKS
see attached image
Answer:
none of the other answer
Explanation:
because the chance of CF in child depends in having disease both father and mother if one of them have the disease then its maybe 1 in 1000 or more
Answer:
your answer is correct 1/4
Explanation:
since both parents are heterogeneous so the percentage that their new child will have this disease is 1/4 and this disease needs two alleles of cftr since it is recessive
In experiments intended to measure conformity it was found that
In experiments designed to measure compliance, observed participants were found to tend to obey authorities, even if their orders contradict individual common sense.
What does the Milgram experiment say?The Milgram Experiment (or Milgram Experiment) was a scientific experiment developed by psychologist Stanley Milgram. The experiment aimed to answer the question of how observed participants tend to obey authorities, even if their orders contradict individual common sense.
With this information, we can conclude that Milgram wanted to investigate what circumstances led men to commit barbarism and observe how far they would be able to go if there was a superior responsible for their actions or if he gave them instructions to violate integrity and infer pain to the other.
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PLEASE HELP
How is nitrogen gas fixed biologically?
A) combustion of fossil fuels
B) respiration of living organisms
C) bacteria in plant roots and soil
D) decomposition of organic matter
1. Define communicable diseases. Give three examples.
2. Give two examples of each of the following types of microorganisms: a) Algae b) Fungi c) Protozoa.
3. What is pasteurization?
4. Mention any three ways through which pathogens are transmitted.
5. It is always suggested that not to eat anything from street hawkers. Why?
6. Ria thought of making curd. For this, she took lukewarm milk, mixed some curd into it and stir well. She kept the mixture in fridge. Next day she observed that curd was not set. Can you tell why the curd did not set?
7. Seema got cough and cold badly. Her teacher asked her to take rest at home and use handkerchief while sneezing and coughing. She obeyed her teacher.
a) Why should we keep a handkerchief on nose and mouth while sneezing or coughing?
b) What are the modes of transfer of diseases from infected to healthy person?
c) Do you think Seema’s teacher’s decision was right? Why?
d) What value of Seema is shown here?
8. Classify bacteria on the basis of their shapes.
9. Why are viruses considered to be the borderline between living and the non- living?
Answer:
1-Those diseases which can be transferred from one person to another person are called communicable diseases . Examples-Common cold ,HIV,chicken pox
2-Algae- spirogyra,volvox
fungi-yeast,mushroom
protozoa-plasmodium,amoeba
3-pasteurization, heat-treatment process that destroys pathogenic microorganisms in certain foods and beverages.
In DNA replication, continuously synthesis occurs on the leading strand
Answer:
I think the answer is A. toward the origin of replication.
Explanation:
I hope this helps! Correct me if I am wrong.
In DNA replication, continuous synthesis occurs on the leading strand toward the origin of replication. Therefore option A is correct.
In DNA replication, continuous synthesis occurs on the leading strand, which is the template strand that runs in the 3' to 5' direction.
DNA polymerase synthesizes the leading strand in the 5' to 3' direction, moving toward the replication fork's origin. The replication fork is the point where the DNA strands are unwound and replication begins.
As the replication fork opens, DNA polymerase adds nucleotides in the direction of the origin of replication, continuously elongating the leading strand.
The lagging strand, on the other hand, is synthesized discontinuously in the opposite direction, creating Okazaki fragments, which are later joined together by DNA ligase.
Therefore option A is correct.
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Your question is incomplete, but most probably your full question was,
In DNA replication, continuously synthesis occurs on the leading strand Multiple choice question.
A. toward the origin of replication.
B. without RNA primers.
C. In the 5' to 3' direction.
D. Creates Okazaki fragments.
Which statement about vacuoles is true?
Only plant cells contain vacuoles.
Only animal cells contain vacuoles.
Vacuoles are larger in plant cells than in animal cells.
Vacuoles are larger in animal cells than in plant cells.
Explanation:
Vacuoles are larger in plant cells than in animal cells.
Use the codon table below to analyze a segment of mRNA with the base sequence
GGU AGC CGG.
A. Gly-Ser-Arg
B. Val-Thr-Ala
C. Pro-Ser-Ala
D. Glu-Thr-Arg
Which amino acid chain will these codons form?
The mRNA sequence GGU AGC CGG encodes the amino acid sequence Gly-Ser-Arg (Option A).
What is the genetic code?The genetic code makes reference to the linear order of DNA/RNA nucleotides in codons that specify different amino acids.
The genetic code starts in DNA to be transcribed to mRNA and finally translated into protein sequences.
In conclusion, the mRNA sequence GGU AGC CGG encodes the amino acid sequence Gly-Ser-Arg (Option A).
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the picture has the question in it
The sequence of passage of air during inhalation:
pharynx
larynx
trachea
bronchi
alveoli
(there are actually a few more steps to this question, but these are what the question lists)
hope this helps!!
5
As you know, usually
agree) with the things you're saying now
This time last year
the city centre
I was so tired last night that
television.
4
I missed my bus to school yesterday, and by the time
(lesson /start).
(Tim/visit) me next Sunday, and
2
3
Grammar and vocabulary
A Complete the sentences with the correct form of the words in brackets
Example:
We study (we/study) English every day, but today we're doing (we/do) a progress test
1
cinema.
(1/agree) with everything you say, but
(1/work) in a shop and
(1/fall) asleep while
(1/not
(live) in a small flat in
(1/watch)
(1/arrive), my
(we/probably/go) to the
Answer:
chapter five Global Affairs Module concepts
Atoms of which three elements could bond together to form an organic compound?
Ooxygen, iron, and carbon
O carbon, hydrogen, and oxygen
O oxygen, hydrogen, and nitrogen
O carbon, iron, and nitrogen
Answer:
carbon, hydrogen, and oxygen (second option listed)
How does the melting of icecaps affect climate change
Answer: it can contribute to rising sea levels, higher overall climate, & affect native wildlife.
Explanation: (1) Melting ice can add more water to the ocean, which in turn sea levels rise due to this affecting coastal communities. (2) sea ice such as snow caps reflect 50 percent of solar radiation, (thick sea ice covered with snow reflects even more radiation, about 90 percent) this reflecting keeps global temperatures in check. (3) native arctic wildlife, such as porpoises, fish, avians, and land-mammals are affected as their homes are shrinking, leading to less food and areas that they are adapted too.
What organelles of a cell is responsible for sensitivity?
Explanation:
Mitochondria are the organelle where ATP is generated through oxidative phosphorylation and several diseases are associated with mitochondrial dysfunction and oxidative stress. Mitochondria contain their own DNA and their number within the cell is finely regulated
The table gives the average temperatures and elevations of the inner canyon and the north rim of the Grand Canyon.
Inner Canyon North Rim
average elevation 2,100 feet 8,000 feet
average temperature in July 107°F 77°F
average temperature in January 56°F 37°F
Why is there such a vast climate difference in these two areas of the Grand Canyon?
The average temperature in July 107°F 77°F. Thus, the correct option is C.
What is the average high temperature in the inner Grand Canyon?With a 34°F minimum and a 62°F maximum temperature. Phantom Ranch's inner-canyon temperatures typically vary from a low of 55°F to a high of 82°F. Summer (June–August) temperatures range from a little over 100°F (38°C) at the Grand Canyon's bottom to 80+°F (plus or minus) at the South Rim.
Around 1,500 feet higher than the South Rim, the North Rim is perched above the Kaibab Plateau at an altitude of between 8,000 and 9,000 feet.
On February 1st, 1985, the North Rim had a record-low temperature of -22 °F. At Phantom Ranch, the temperature reached 120°F on a number of occasions during the summer. Rough topography and deep gorges have a significant impact on solar heating and air movement. As a result, the canyon contains numerous unique microclimates.
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A man with type AB blood has children with a woman who has type O blood. What are
the chances that a child they conceive will have type A blood? B? AB? O?
Please answer for brainliest and thanks!!
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This couple could have children of either blood type A (O from mother and A from father) or blood type B (O from mother and B from father).Why are mosses called pioneer plants?
Answer:
The first organisms to appear in areas of primary succession are often mosses or lichens. These organisms are known as pioneer species because they are the first species present; pioneer species must be hardy and strong, just like human pioneers.
Explanation:
a carbohydrate 7 monomers long has how many glycosidic bonds?
A. 1
B. 2
C. 3
D. 4
E. 7
Answer:
b. 2 is the answer to ur question
