Answer: I feel that the theory of plate tectonics is correct, because we use friction every day which means friction could make vibrations larger too!
Answer:
I feel that the theory of plate tectonics is correct, because we use friction every day which means friction could make vibrations larger too!
Explanation:
why do you add chilled methylated spirits to the filtrate
Answer:
The detergent breaks apart the cellular membranes and the salt binds to the DNA to make it less able to remain soluble in water (it neutralizes the charge of the DNA and it is less able to bind to water).
Explanation:
hope this helps
The ________ of a protein is the specific order of amino acids that makes it up, but it needs to undergo much more modification before it is a finished protein.
Select one:
a.
mRNA
b.
primary structure
c.
tRNA
d.
DNA code
Answer: B. Primary structure
The primary structure of a protein is the specific order of amino acids that makes it up, but it needs to undergo much more modification before it is a finished protein.
Sienna decides to study movement in plants. Identify the correct sequence of the scientific steps, and place the steps in order.
She developed a
hypothesis that
plants move toward light.
Over six weeks, both
plants grew toward their
available light source.
She put one plant near
the window and another
in a dark room with a
small opening that let
light come through.
Every few days she
checked the plants
and recorded the
direction of their
growth.
1. Develop a hypothesis: Sienna hypothesized that plants move toward light. 2. Set up the experiment: Sienna placed one plant near a window and another in a dark room with a small opening that allowed light to come through. 3. Observe and record: Sienna checked the plants every few days and recorded the direction of their growth. 4. Analyze the data: Sienna examined the recorded data to determine the direction of growth for each plant over the six-week period. 5. Draw conclusions: Based on the data analysis, Sienna drew conclusions about whether the plants moved toward the available light source or not.
1. Sienna developed a hypothesis that plants move toward light. This is the initial step where she formulates her prediction based on prior knowledge or observations.
2. Sienna set up the experiment by placing one plant near a window and another in a dark room with a small opening that allowed light to come through. This step ensures that there are two distinct conditions to compare the plant growth.
3. Every few days, Sienna checked the plants and recorded the direction of their growth. This step involves making regular observations and documenting the changes in plant growth over time.
4. After six weeks, Sienna gathered all the recorded data, which included the direction of growth for each plant. This data would serve as the basis for further analysis.
5. Sienna analyzed the data by examining the recorded observations. She compared the direction of growth for each plant and looked for patterns or differences between the plant near the window and the one in the dark room.
6. Based on the data analysis, Sienna drew conclusions about whether the plants moved toward the available light source or not. This step involved interpreting the data and determining if the hypothesis was supported or refuted by the evidence gathered from the experiment.
By following this sequence of steps, Sienna was able to study movement in plants and draw conclusions about their response to light.
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25. Type A blood and Type B blood are dominant to type O blood, but codominant to one another. What would
the blood type of a person who inherited a B allele one parent, and an O allele from the other be?
a. Type A
с. Type AB
b. Type B
d. Type o
Answer:
C.
The offspring of the two parents would inherit type B blood.
Why is methane non polar but water is polar?
2 Itching and other skin problems are signs that a cat or dog may have fl eas. Fleas are parasites known for their biting and blood-sucking abilities. When they bite, fl ea saliva enters the pet’s circulatory system, sometimes causing an allergic response commonly seen as a “hot spot” on the pet’s neck or the base of its tail
Itching and other skin problems are signs that a cat or dog may have flea. Fleas are parasites known for their biting and blood-sucking abilities. When they bite, flea saliva enters the pet’s circulatory system, sometimes causing an allergic response commonly seen as a “hot spot” on the pet’s neck or the base of its tail.
Fleas are tiny parasitic insects that infest the fur of dogs and cats. They feed on blood and cause skin irritation that results in itching. If the problem is severe, it can lead to more significant health issues. Pet owners should watch for signs of fleas and treat their pets promptly to avoid complications. Fleas lay eggs on the skin of dogs and cats, which hatch and develop into larvae.
The larvae feed on the skin, shedding as they mature. Adult fleas emerge from the larvae, biting the host to feed on blood. The process repeats itself, with adult fleas continuing to lay eggs on the skin of the pet.The most common sign of fleas in dogs and cats is itching. Pets will often scratch themselves, bite their skin, or lick excessively to relieve the irritation.
Other signs of fleas include red or inflamed skin, hair loss, and the appearance of small, raised bumps on the skin. These bumps are often referred to as "flea dirt" and are the waste products of the fleas. In severe cases, anemia, an allergic reaction, or the transmission of other parasites or diseases can occur.
Flea infestations can be treated with a variety of products, including topical treatments, shampoos, and collars. It is essential to follow the instructions on the product label and treat the pet and the surrounding environment to eliminate the fleas. Prevention is key to avoiding flea infestations, so pet owners should maintain a regular grooming and flea prevention schedule.
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Potassium (K) is an important element in all body cells. It has just one electron
in its valence shell-this will most likely be donated/shared and result in a
negatively/positively charged ion.
Donated / negatively charged
Shared/negatively charged
Donated positively charged
Shared/ positively charged
The one electron in its valence shell would most likely be donated to form a positively charged ion.
What is potassium?Potassium is an element of group one. This element is univalent and has a valency of one. This implies that the outermost shell of the potassium atom is composed of only one electron.
Potassium forms a univalent positive ion which occurs by the loss of the one electron in the outermost shell of the potassium atom.
Thus, the one electron in its valence shell would most likely be donated to form a positively charged ion.
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The Family of elements whose atoms have their outer layers of electrons completely filled making their very, very stable is the ___________ family.
Answer:
Nobel gases
Explanation:
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Love your profile picture!
Population of Rabbits based on Leg Length
Generation
Number with short Number with medium
Number with long
lege
135
155
1
2
3
97
23
22
95
150
5
18
15
13
175
180
97
A student is comparing the leg lengths of the rabbits in a population. She wonders if natural setection is occurring. She asks you to
evaluate her conclusions. Select ALL that are NOT supported by her data.
A)
The rabbits with medium length legs are the most stable and thus will out
survive the others.
B)
Medium length legs appears to be neither an advantage or disadvantage in
the current environment.
The rabbits with longer legs have a selective advantage that allows them
to survive and reproduce.
It is unlikely that evolution is occurring because none of the traits have
disappeared from the population
A predator is the likely source of natural selection in this population as the
rabbits with longer legs are more likely to escape compared with those
with the shorter legs
D)
E)
Answer:A and D
Explanation:
It’s the USA test prep question
The following data indicate that the statement "the medium rabbit leg is stable and evolution is unlikely to happen" is false. Hence, options A and D are the correct options for the statements.
What is the role of natural selection?Natural selection selects organisms that are best suited to their environment, and these individuals multiply to increase their population size. In this case, generation after generation, the population of short-legged rabbits decreased from 23 to 13. This indicates that the small-legged rabbits were eaten by the predators, resulting in a reduction in their number. The number of middle-legged rabbits did not vary much, so they did not gain a selective advantage, but long-legged rabbits easily escaped from predators, and as a result, they rapidly increased in number, and as a result, the small-legged population declined with the increase in long-legged rabbits.
Hence, the medium leg is stable and evolution is unlikely" is false. Hence, options A and D are the correct options for the statements.
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The question is incomplete, the complete question is the below,
Number with short legs (Generation 1 to 6) =23, 22, 20, 18, 15, 13
Number with medium legs (Generation 1 to 6) =97, 98, 95, 97, 96, 97
Number with long legs (Generation 1 to 6) =135, 155, 160, 163, 175, 180
A)The rabbits with medium length legs are the most stable and thus will out survive the others.
B) Medium length legs appears to be neither an advantage or disadvantage in the current environment.
C) The rabbits with longer legs have a selective advantage that allows them to survive and reproduce.
D) It is unlikely that evolution is occurring because none of the traits have
disappeared from the population.
E) A predator is the likely source of natural selection in this population as the rabbits with longer legs are more likely to escape compared with those with the shorter legs.
Which of the following are valid ways to find out correct information about your health. Search the internet. Ask a trusted family member consult a doctor, nurse or qualified health professional none of the above
Answer:
Consult a doctor, nurse or a qualified health professional.
Explanation:
Doctors and Nurses are professionals in this field. From the options listed they are the only people who could give you valid information on your health. Getting your information from other sources could lead you to being misinformed, and that could have detrimental effects.
Why did individual 9, 11, and 12 get the disorder but their parents did not have the disorder?
From this pedigree we can assume a trait coded by a recessive allele from an autosomal gene that expresses complete dominance. Parents 3, 4, 5, and 6 are heterozygous, which is why they are not affected. Individuals 9, 11, and 12 received only recessive alleles from their parents, and this is why they are affected (genotype aa).
What is a pedigree?
A Pedigree is the representation of a family's history. This graph is used to track a trait through different generations, and analyze the inheritance pattern of a particular gene and its expression.
It is a tool used to understand how genes are transmitted from the parental generation to the descendants, and what are the probabilities of inheriting them.
Pedigree interpretation.
Family members→ Individuals are represented with geometrical figures.
→ Males are squares
→ Females are circles
Trait/Phenotype→ Healthy/normal/not affected individuals are represented with empty figures
→ Affected/mutated individuals are represented with solid black figures
Generations→ Each file is represented with a roman number, indicating the Generation.
In the exposed example, affected individuals have a genotype aa (recessive trait), while unaffected individuals have at least one dominant allele in their genotypes (AA or Aa).
Individuals 9, 11, and 12 have the disorder because they received a recessive allele from each of their heterozygous parents (the mother transmitted a recessive allele and the father transmitted another recessive allele).
All parents (II3, II4, II5, and II6) are heterozygous, Aa. Each of them have 50% chances of passing a recessive allele to their progeny and 50% chances of passing a dominant allele.
The progeny of each couple has 75% chances of being unaffected (25% AA + 50% Aa) and 25% chances of being affected (25%aa).
This is,
Cross:
Parentals) Aa x Aa
Gametes) A a A a
Punnett square) A a
A AA Aa
a Aa aa
F1) The expected genotypes among the progeny are
25%AA50%Aa25%aaThe expected phenotypes among the progeny are
75% unaffected25% affectedThe first couple (II3 x II4) has an unaffected child AA and an affected one aa.
The second couple (II5 x II6) has only affected children, aa.
In conclusion,
From this pedigree we can assume this is an autosomal gene that expresses complete dominance. The dominant allele codes for the unaffected phenotype, while the recessive allele codes for the affected phenotype. Individuals 3, 4, 5, and 6 are heterozygous for the trait. The presence of a dominant allele in enough to be unaffected. These parents transmitted only recessive alleles to individuals 9, 11, and 12, who are homozygous recessive for the trait. This is why these individuals are affected.You can learn more about pedigrees at
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What does working out have to do with the characteristics of life? 100 POINTS!!!!!!!!!
Increasing life expextancy by several years.
Hope this helps!!
Answer:
Working out regularly can improve your muscle strength and boost your endurance. Moving our body delivers oxygen and nutrients to your tissues and helps your cardiovascular system work more efficiently. And when your heart and lung health improve, you have more energy to tackle daily chores.
By having more energy to do daily activities your life expectancy and quality can increase significantly.
Rarely, the conjugation of Hfr and F− cells produces two Hfr cells. Explain how this event takes place.
Answer:
"F" on account of E.coli show the fertility factor. Cells possessing this factor (called donors) hold the ability to move the hereditary material over the strains by a procedure called conjugation. F-factor exists as a free element (cell is called episome) or integrated into bacterial chromosome (cell is called Hfr-High frequency recombinant). Cells with no F factor are recipients.
In a Conjugation between a F+ and F-cell just F factor from F+ cell gets moved o produce two F+ cells. But during a Hfr and F-conjugation as the F factor is incorporated into the chromosome and by the intrinsic idea of F factor to get moved the Hfr cells attempt to move their whole genetic material across and there are two outcomes wherein one case there is a fragmented exchange of hereditary material and the recipient cell remain F-and when there is a finished exchange of hereditary material the cell becomes Hfr yet this is uncommon as the time taken for the total exchange of hereditary material is excessively long for the cells to remain contact.
Should we devote time and money to developing alternative energy resources? Why or why not?
What common features do eukaryotic mRNA share? Please use one of these features to describe how you can isolate eukaryotic mRNA from the cell extract. (limit your answers in 4 lines)
Answer:
A common feature in mRNAs that allow extraction from the cell is the 5' cap region which has a Guanine nucleotide attached to the mRNA in an atypical five prime to five prime triphosphate linkage.
Explanation:
The 5' cap structure serves to protect the mRNA against damage from RNA phages and an extraction protocol an be used to isolate the mRNAs from the cells. Reagents such as Dichloromethane, sodium hydroxide and diethyl ether in aqueous solution helps separate the organic layer, a silica-gel column can be used to further isolate the mRNAs
What is the correct steps involved in the process of making a protein?
The steps for protein synthesis are:
-Unziping
-Transcription
-Translation
-Elogation
-Termination
1) Unziping: DNA double strand unwinds to expose a sequence of nitrogenous bases (4 the base pairs along a length of DNA separate, exposing binding sites of the bases);
2) Transcription: A copy of the DNA strand is made creating a RNA strand (1 RNA bases bind to DNA bases);
3) The exit of the mRNA made up in the second step to the cytoplasm (5 An RNA copy of the gene leaves the nucleus);
4) Translation: (2 amino acids are brought to the RNA, the mRNA and the tRNA meet to translate the nitrogeneous bases in amino acids);
5) Elogation and Termination: (3 The amino acid string folds and form a protein) the protein information from the mRNA, translated with the help of the tRNA is used for the protein synthesis in the cells cytoplasm.
Therefore, the final order for the question is: 4-1-5-2-3
7. A niche is
a) a small population of organisms
b) a place in which organisms live
c) a large collection of ecosystems
d) the role an organism plays in an ecosystem
Answer:
its d!
Explanation:
good luck! :)
The theory of endosymbiosis proposes that eukaryotes descended from a primitive combination of both archaea and bacteria. What evidence supports this theory?
what is the difference between exocytosis and endocytosis
Answer:ur mom
Explanation:
Endocytosis is the transport into the cell and exocytosis is the transport out of the cell. The difference can be seen because a vesicle forms around the molecule entering in endocytosis and forms a vesicle. The opposite occurs in exocytosis
The occipital lobe in your left hemisphere receives information from:
a. The left side
b. The right side
c. The right eye
d. The left eye
The occipital lobe in the left hemisphere of the brain receives visual information from the
b. right side of the visual field of both eyes.
This phenomenon is known as contralateral processing, where the left hemisphere receives information from the right side of the body and vice versa. The right visual field is processed by the left occipital lobe, while the left visual field is processed by the right occipital lobe. This is because visual information from each eye is transmitted to both hemispheres of the brain, with each hemisphere processing information from the opposite visual field. The occipital lobe is responsible for processing visual information, such as recognizing shapes, colors, and objects, and creating a coherent visual perception of the environment. Therefore, the left occipital lobe plays a crucial role in the processing of visual information from the right visual field.
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inquiry based pedagogy is being embraced in principle across the globe. in the last decade , it has been supported by an increasing body of research on its effectiveness. illustrate your understanding of the concept of inquiry based pedagogy with a relevant example
Inquiry-based pedagogy involves fostering curiosity and active learning. For example, students investigating real-world environmental issues and proposing solutions.
Inquiry-based pedagogy is a teaching approach that promotes active learning and critical thinking through inquiry and exploration. One relevant example of inquiry-based pedagogy is a science classroom where students are encouraged to design and conduct their own experiments. Instead of simply following instructions, students formulate research questions, develop hypotheses, plan and execute experiments, collect and analyze data, and draw conclusions. For instance, students may investigate the effect of different variables on plant growth by manipulating factors like light, water, or soil composition. This approach allows students to engage in authentic scientific practices, develop problem-solving skills, and gain a deeper understanding of the scientific method. By actively participating in their learning process, students develop a sense of ownership and become more engaged, fostering a love for learning and nurturing their ability to explore and discover knowledge independently.For more such questions on Pedagogy:
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11 organ systems; which two systems work together to manage stability and protect the body?; the circulatory system provides your; which two body systems work together to bring oxygen to every cell in the body; how might the digestive system and the circulatory system need to work together?; cells, tissues, organs organ systems example; body systems that work together; how does the circulatory system work with the nervous system
The two organ systems work together to manage stability and protect the body muscular and skeletal systems.
The 'organ systems Skeletal machine, Muscular gadget, frightened device, Endocrine device, Cardiovascular gadget, Lymphatic system, respiration machine, Digestive device, Urinary gadget, and Reproductive device (lady and Male).
The nine primary organ structures within the human body are the integumentary machine, the musculoskeletal machine, the respiration gadget, the circulatory machine, the digestive device, the excretory device, the worried gadget, the endocrine machine, and the reproductive device.6 days ago
Organ structures consist of the integumentary gadget, skeletal machine, muscular system, lymphatic device, respiration device, digestive device, fearful device, endocrine system, cardiovascular gadget, urinary system, and reproductive systems.
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The following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics.
What shared characteristic can be written at point X? Use complete sentences to explain your answer.
Derived characters are those that emerge at some point during evolution, and are expressed by all the subsequent groups. Derived characters shared by protist, plants, fungi, and animals are: eukaryotic organisms, autotroph or heterotroph, cell membrane, nuclei with DNA, mitochondria.
What are derived characters?
The derived character is any trait that a group passes to the descendants.
Through evolution, the characters change, and new changes are added.
When referring to a derived character, we mean that all the subsequent species in the cladogram, after the character emerged, carry the trait.
In the exposed example, we need to describe characters expressed by protists, plants, fungi, and animals.
Eukaryotic organisms, autotroph or heterotroph. All of them have cell membranes, nuclei with DNA, and mitochondria.You can learn more about derived character at
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Which two mantle hot spots are located at midocean ridges?
A. Iceland and Yellowstone
B. Galapagos and Tasman
C. St. Helena and Hawaii
D. Easter Island and Bouvet
Answer:
C. St. Helena and Hawaii
Explanation:
Why is art a fun class to take.
Art class provides a creative outlet for self-expression and allows students to develop their imagination, critical thinking, and problem-solving skills in a fun and engaging way.
What is an art class?Art class provides a creative outlet for students to express themselves and unleash their imagination. It allows them to explore different mediums, techniques, and styles, and to experiment with color, form, and texture. In art class, there is no right or wrong answer, and students are free to experiment and make mistakes.
The class also encourages critical thinking, problem solving, and communication skills, as students learn to discuss and analyze works of art. Art class is a place where students can forget about their other classes and just have fun making art.
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Question 2 of 5
What does the theory of evolution state?
O A. Individual organisms adapt to their environment throughout their
lives.
B. Living things on Earth change over time because of natural
processes.
C. Fossils show that extinct organisms are unrelated to living things
today.
D. Evidence of every species that ever lived is present in the fossil
record.
SUBMIT
Answer:
B. Living things on Earth change over time because of natural processes.
Answer:
b
Explanation:
In the human body what types of substances might need to constantly move into and out of the cells in order to keep them alive? *
*choose all that apply*
minerals
nutrients
water
bacteria
oxygen
blood
carbon dioxide
wastes
hormones
In rabbits, short hair (S) is dominant over long hair (s). What genotype and phenotype ratios are
expected from a cross between two heterozygous shorthaired rabbits?
Answer:
Genotype Phenotype
SS 1/4 Short hair 3/4
Ss 2/4 Short hair 3/4
ss 1/4 Long hair 1/4
Explanation:
The resulting off-spring would have the following genotype and phenotype:
1 out of 4 will have a genotype of SS.
2 out of 4 or half will have a genotype of Ss.
1 out of 4 will have a genotype of ss.
But because short hair is dominant the phenotype ratios would differ because Ss and SS would express short hair, so we add up their ration:
Short hair: 1/4 + 2/4 = 3/4
Long hair: 1/4
Can anyone help me with my homework
Answer:
1. true
2. False
3. True
4. True.
Explanation: Im am so so sooo sorry if i am wronge and I just think that is it.
In a California kelp forest, the garibaldi, the purple sea urchins, and the rocks make up whic of the following? Select all that apply.
a population
part of a community
part of an ecosystem
Part of a community
Part of an Ecosystem
In a California kelp forest, the garibaldi, the purple sea urchins, and the rocks make up part of a community and part of an ecosystem. Therefore, option B and C are correct.
What is ecosystem ?All the organisms and the physical setting they interact with make up an ecosystem. The nutrition cycles and energy flows connect these biotic and abiotic elements. Photosynthesis is how energy enters the system and is absorbed by plant tissue.
Abiotic variables, or nonliving components, coexist with biotic components in ecosystems. Plants, animals, and other species are biotic factors.
Healthy ecosystems maintain our soil, clean our air, control the climate, recycle nutrients, and give us food. They offer resources and raw materials for making medications and other things. They support our economies and are the cornerstone of all civilizations.
Thus, option B and C are correct.
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