Answer:
A) Species A and E are more closely related than either species are related to species D.
B) Between A and B = 99.1%
Between species A and C =97.5%
Between species B and C = 97.3%
Similarity in amino acids sequence reflects similarity in DNA sequence
C) Species A and E are most closely related
D) Species A and E have the most similarity in amino acid sequence, and hence DNA sequence.
Explanation:
A) The amino acid sequences of the protein, keratin, in species A and D has a difference of about 19 whereas species A and E have a difference of only 1. Therefore, it means that keratin in species A and D will have differences in structure whereas between species A and E, they would have almost the same structure.
Also, species D and E have a difference of 20 in their amino acids sequence, therefore, the structure of keratin in both species will have differences in structure.
B) Similarity between A and B:
450 - 4 = 446
In percentage: 446/450 × 100% = 99.1%
Similarity between A and C:
450 - 11 = 439
In percentage: 439/450 × 100% = 97.5%
Similarity between B and C:
450 -12 = 438
In percentage: 438/450 × 100% = 97.3%
The sequence of DNA of species determines their amino acid sequences because information in DNA is transcribed to RNA which are then used to make proteins. Therefore, if a species are very closely related, they are expected to have very similar genetic sequences and thus proteins too. This is reflected in similarity between amino acid sequences in their proteins.
C). Species A and E are most closely related.
D) Species A and E have only a single difference in their amino acids sequence for Keratin. This translates to about 99.7% similarity which is the highest among all the species compared. Therefore, species A and E are most closely related.
please help
Which is one step that geologists use to find the epicenter of an earthquake?
A: They look at data from at least one seismograph.
B: They measure the difference between arrival of P waves and S waves.
C: They draw circles around the epicenter from three locations.
D: They obtain information about the intensity of earthquakes from seismographs.
Answer:
It is B on edge 2020 which is "They measure the difference between arrival of P waves and S waves".
Explanation:
Have a good day
Answer:
B
Explanation:
The process whereby the earth’s life changes over time through changes in genes of populations of organisms in succeeding generations is called____.a. emigration.b. mutation.c. natural selection.d. evolution.e. genetic drift.
Answer:
Option d (evolution) is the right answer.
Explanation:
This concept postulates that perhaps the different kinds of plants, animals, as well as other living objects aspects universe originate in several other currently existing categories and because the focus on possible is sensitive to variations in generation after generation. Evolution theory has been one of the cornerstones of the contemporary biopsychosocial model.Some other possibilities don't relate to either the scenario is given. Enough that option d seems to be the correct decision.
Which action would most likely increase the amount of carbon in the environment?
choosing to burn coal to generate electricity
using energy-efficient appliances in place of older, traditional appliances
reusing shopping bags instead of using disposable plastic bags
recycling paper and plastic instead of throwing it in the trash
Answer: (A.) Choosing to burn coal to generate electricity
its right leave a rate and a like too
The action which would most likely increase the amount of carbon in the environment is choosing to burn coal to generate electricity. Thus, the correct option for this question is A.
What is an environment?An environment may be defined as anything that is present in the surroundings of a living organism. It includes two types of factors, i.e. biotic and abiotic factors. The term environment was given by Carlyle.
Human Activity is the major cause of Increased Greenhouse Gas Concentrations. Over the last century, the combustion of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2). This increase happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.
Therefore, the action which would most likely increase the amount of carbon in the environment is choosing to burn coal to generate electricity. Thus, the correct option for this question is A.
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What do organs combine to form? a.cells b.organisms c.organ systems d.tissues
Answer:
C. Organ systems
Explanation:
They combine to form an organ system.
Answer:
CExplanation:
Organ systems, such as the circulatory system, are made up of many organs working together. For example, the circulatory system is made up of the heart, veins, and lungs.
I'm always happy to help :)what is the definition of botany
If a hole is created in the chest wall, air could escape or be drawn in, or if bleeding develops within the chest, air and blood can accumulate in the pleural space. This would force the lung to:
Answer:
It'd force the lungs to collapse.
Explanation:
The pleural space is the space between the lung and the pleura of the two lungs that is covered with a thin membrane and filled with fluid.
If air and blood accumulates within the pleural space, this would cause the lungs to collapse because of the pressure.
I hope this answer helps.
Directions
1. Use the library, internet, and other educational resources to research nuclear energy.
2. Write a three-paragraph report on what you have learned. Be sure to include the uses of nuclear power, how it is
generated, and the impact it has on the environment. Also, answer the question, "Is nuclear energy renewable?" THREE PARAGRAPHS PLEASE HELP !!!!!!!
Answer:
Explanation:
Australopithecina or Hominina is a subtribe in the tribe Hominini. The members of the subtribe are generally Australopithecus (cladistically including the genera Homo, Paranthropus,[2] and Kenyanthropus), and it typically includes the earlier Ardipithecus, Orrorin, Sahelanthropus, and Graecopithecus. All these related species are now sometimes collectively termed australopithecines or homininians.[3][4] They are the extinct, close relatives of humans and, with the extant genus Homo, comprise the human clade. Members of the human clade, i.e. the Hominini after the split from the chimpanzees, are now called Hominina[5] (see Hominidae; terms "hominids" and hominins).
While none of the groups normally directly assigned to this group survived, the australopithecines do not appear to be literally extinct (in the sense of having no living descendants) as the genera Kenyanthropus, Paranthropus and Homo probably emerged as sister of a late Australopithecus species such as A. africanus and/or A. sediba.
The terms australopithecine, et al., come from a former classification as members of a distinct subfamily, the Australopithecinae.[6] Members of Australopithecus are sometimes referred to as the "gracile australopithecines", while Paranthropus are called the "robust australopithecines".[7][8]
The australopithecines occurred in the Plio-Pleistocene era and were bipedal, and they were dentally similar to humans, but with a brain size not much larger than that of modern apes, with lesser encephalization than in the genus Homo.[9] Humans (genus Homo) may have descended from australopithecine ancestors and the genera Ardipithecus, Orrorin, Sahelanthropus, and Graecopithecus are the possible ancestors of the australopithecines.[8]
The generation of radioactive wastes such spent (used) reactor fuel, uranium mill tailings, and other radioactive wastes is a significant environmental hazard associated with nuclear power.
What impact of nuclear power, energy on the environment?Nuclear energy is still readily available, despite the fact that it isn't strictly renewable (since there is only a finite amount of uranium on Earth).
Additionally, even though using nuclear energy to produce electricity is a carbon-free process, building new nuclear energy facilities and mining the uranium fuel have their own environmental consequences.
For millions of years, these substances may continue to be radioactive and hazardous to human health. The trash that nuclear power generates is the most urgent environmental concern.
During the course of a nuclear power plant's operation, a few different types of radioactive material are created, most notably used reactor fuel and the tailings from uranium mills.
Therefore, These pose numerous risks to the health of both people and the environment if they are not handled and disposed of properly.
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A 46-year-old man is currently enrolled in a Phase 2 study of a drug for severe diabetic neuropathy. While the study is on-going, a new drug becomes commercially available that may have equal or greater benefit to the subject. The investigator should do what with the client?
Answer:
The correct answer would be -provide detailed information about the research and drug and let the man decide if he wanted to withdraw from the research or take new drug.
Explanation:
In this type of case where there is a drug that is in on going study or in clinic trail which is showing promising result, investigator should provide the client or subject a comprehensive account of the drug with is pro and cons and side effects.
He should discuss about the both currently available drug in market and ongoing research drug and let the man decide whether he want to be part of the research or withdraw from the research.
Which of the following most directly influences a measurable outcome in an experiment. An independent variable A variable hypothesis A dependent variable Previous information
Answer:
An independent variable
Explanation:
An experiment consists of two variables viz: independent and dependent variable. Independent variable is the variable that the experimenter controls in order to influence or effect a change in the measurable variable called dependent variable. As the name suggests, the dependent variable is dependent on the independent variable.
For example, a scientist is trying to conduct an experiment on how the caffeine level in different types of drink affects the time of sleep in individuals. The independent variable in this experiment is the TYPE OF DRINKS because it is the variable controlled by the experimenter in order to influence the time of sleep (measurable outcome).
Answer:
B.
Explanation:
ANSWER ASAP PLEASEEEEEE!!!!!! ILL GIVE 100 POINTS!!
Answer:
D is correct
Explanation:
Identify science vs. pseudoscience
What are the ordered pairs?
Answer:
Ordered pairs are 2 numbers that show where a specific point is on a gird
Example:
(3,2)
This ordered pair would mean 3 over on the x-axis (horizontal) and 2 over on the y-axis (vertical)
another thing to keep in mind, since x comes before y in the alphabet, x also comes before y in ordered pairs (x,y)
On an annual basis, what is the net result of the contributions/removals of CO2 from the atmosphere due to global photosynthesis and respiration
Answer:
The correct answer is : approximately 3 gT yr^-1 decrease
Explanation:
Carbon dioxide is contribute and removed from the atmosphere by various type of activities that are human activities, biological input or biological removal and geological input or geological removal.
Adding carbon dioxide can be from biological inputs mainly respiration and removed from atmosphere mainly through biological removal mainly photosynthesis.
Both photosynthesis are complementary metabolic process that play major role of adding and removal of carbon dioxide. There is a decrease of 3gT yr^-1 approximately on the annual basis due to these biological process.
NEED ANSWER ASAP!!
8) A _____ has a nucleus, a corona, and a tail.
meteors
comet
stars
planet
asteroid
Answer:
I'm pretty sure it's a comet!
Explanation:
A comet's nucleus is like a snowball made of ice. As the comet nears the Sun, the ice starts to melt off, along with particles of dust. These particles and gases make a cloud around the nucleus, called a coma. A comet's nucleus, or heart, is the solid chunk of something in the center of its fuzzy coma.
Most comets have two tails. ... Because the comet dust particles are so small, they are pushed away from the Sun into a long tail. Another tail is made of electrically charged molecules of gas (called ions). Very rarely a comet will have a third tail made of sodium, which we usually don't see with our unaided eyes.
Very sorry if this is incorrect, I hope this helps!
~Kweenie~
How could a change in the number of primary consumers affect the population size of the secondary consumers?
Answer:
it will cause death of secondary consumer
Explanation:
energy won't be distributed and it will spoil the food chain
2. Which of the following are liquid at room temperature?
A)Saturated fats
B)Unsaturated fats
C)Animal fats
D)Butter
Answer:
B) Unsaturated fats are liquid at room temperature while
Saturated fats are solid at room temperature.
Where is the most energy transferred in a food web? I need help asap!
Drinking alcoholic or caffeinated beverages increases urine output more than drinking an equivalent amount of water.
RequireD:
a. How do you think these beverages affect ADH secretion?
b. Would urine osmolarity be increased or decreased?
Answer:
A) ADH secretion decreases. B) Urine osmolarity decreases.
Explanation:
Antidiuretic Hormone or ADH is responsible for the reabsorption of water through the kidneys.
A) Drinking alcoholic and/or caffeinated beverages decreases the release and effect of ADH so the water does not get absorbed as much as it should, which in turn results in more urination.
B) Osmolarity is a term used to express the concentration of a solution in terms of a certain particle. Since less ADH secretion results in more water being in the urine, this lowers the concentration of the urine. So urine osmolarity would be decreased.
I hope this answer helps.
What is the main goal of the United Nations Framework Convention on Climate Change? In recent years, the controversy surrounding environmental issues has decreased.
Answer:
main goal of the United Nations Framework Convention on Climate Change is to reduce and normalise greenhouse gas concentrations to a level that would prevent dangerous human induced interactions with the climate system.
Explanation:
Answer:
to prevent the continued rise of greenhouse gas concentrations
Explanation:
What is a relatively dense aggregation of fishes, squid, and other mesopelagic organisms capable of reflecting a sonar pulse that resembles a false bottom in the ocean. Its position varies with the time of day.
Answer:
Deep scattering layer, DSL
Explanation:
The deep scattering layer (DSL) also known as "deep sound layer", refers to an oceanic deep layer, more or less defined, that reflects sound and that is formed by a wide variety of animals. It is present in almost every ocean. It is produced by the presence of many organisms of different species that can disperse the sonar waves sent by a sonar equipment.
It was discovered through the ships´ sonar. Whenever they met a layer in which the sound hit, and was often confused with the bottom of the ocean. This is why the DSL is refered to as the "fake bottom".
These animals form layers of not less than 10 meters thick and might easily reach up to 50 meters thick. These layers are often found between 50 and 200 meters deep and can be seen going up and down every day according to the daily vertical migration.
A stroke victim has great difficulty moving his right hand and right leg. He also has trouble speaking. Which of his cerebral hemispheres is most likely to have been damaged
Answer:
The correct answer is left cerebral hemisphere.
Explanation:
The left cerebral hemisphere of the brain is accountable for the motor control of the right side of the body, for sensory stimulus from the body’s right side, for analysis and calculations, for the speech, comprehension, and language, for the recognition of letters, words, and numbers, and for time and sequencing.
The left cerebral hemisphere is accountable for the processing of the sensory information and motor information for the body’s right side. Thus, as left cerebral hemisphere monitors the movement of the body's right side, so, based on the extremity of the stroke, which may result in motor skill impairment or functional loss of the right side of the body, shows that the left side of the brain has got affected.
The cerebral hemisphere most likely damaged in this person is the LEFT hemisphere.
The cerebrum can be divided into two major hemispheres known as the right and left cerebral hemispheres.The left cerebral hemisphere is involved in the control o the right side of the body. This hemisphere (left hemisphere) is associated with science and/or mathematical skills, language functions (e.g., grammar, vocabulary), etc.In conclusion, the cerebral hemisphere most likely damaged in this person is the LEFT hemisphere.
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As global warming continues, the oceans absorb more of the Earth’s heat. What term describes the ocean as a storage location for this heat? Heat bin Heat sink Heat storage Heat vent
The pathophysiology of _________ is one in which the pericardial sac fills with blood to the point where the chambers of the heart no longer fill adequately, usually secondary to trauma.
Answer:
The correct answer is : cardiac tamponade.
Explanation:
Cardiac tamponade is a medical condition in which heart has extreme compression or pressure due to the fluid or blood filled in the sac surrounding the heart and prevent the heart to fill properly.
IN other words it is case of extreme pressure on heart due to the fluids like blood collect inside the space present between the pericardial sac that leads ti inadequate filing of heart chambers.
It is caused by mainly by chest trauma, cancer, and chest related underlying disease or trauma.
Thus, the correct answer is : cardiac tamponade.
Which hormone is essential to our ability to maintain our fluid levels? Which hormone is essential to our ability to maintain our fluid levels? cortisol thyroxine insulin aldosterone
Answer:
Aldosterone.
Explanation:
Aldosterone is a hormone that regulates the levels of sodium and potassium in our body, which leads to regulate our fluid levels.
In order to increase the fluids in our system, aldosterone causes the absorption of sodium from our kidneys. The kidneys are the place where our body filters the blood absorbing what it needs, such as sodium, and excreting the rest as urine. With the entering of sodium to our bloodstream, water also enters, increasing the volume of blood in our body.
Aldosterone is also responsible for the excretion of potassium into the urine, controlling the levels of this ion, which is extremely important for a high number of reactions.
where do cell get their food from
Answer:
Blood
Explanation:
Cells get their food from the blood which is absorbed from the small intestine.
Hope it helps :)
Necrosis is the result of cellular injury that does not allow for cellular adaptation because it is which of the following? (Select all that apply.) Too severe Too prolonged Acute in nature Programmed into the cell itself A result of a disrupted blood supply
Answer:
Too severe
Too prolonged
Acute in nature
Explanation:
Necrosis is can lead to death of a cell, it results from external damage to cell such a s diseases and infection.
Necrosis will not allow other cellular activities because its is acute, any cell affected by necrosis will die premature leading to stop of activities on the body part.
Necrosis is a prolonged sickness that takes a long time, it may require the removal of the dead cell for rejuvenation of new body cells.
Therefore, a damage to Because will not allow for cellular adaptation in that part of the body as it leads to the death of the cell.
During Francisco Redi's experiment, he showed that when the meat jars were closed, no new organisms appeared. This confirms _________________, the idea that organisms come from one another. Question 8 options: Abiogenesis Biogenesis Spontaneous Generation Biology
Answer:
During Francisco Redi's experiment, he showed that when the meat jars were closed, no new organisms appeared. This confirms Spontaneous Generation, the idea that organisms come from one another.
Explanation:
hope this will help you :)
I want to design an experiment to see if drinking coffee makes students
score higher on tests. What is the dependent variable in this experiment?
Answer:
The score from the tests
Explanation:
We are learning about variables used within an experiment
We have two variables here -
Independent Variable
Dependent Variable
The question asks "What is the dependent variable in this experiment?"
First off, what is a dependent variable?
Dependent variable - The result or outcome that is being measured
So, if that is the definition, what part of "I want to design an experiment to see if drinking coffee makes students score higher on tests." is the dependent variable?
Well, clearly the outcome that we are looking out for is the score of the tests. Caffeine is being used to see if it makes students score higher on tests, making the test scores the outcome. Making it the dependent variable.
What some possible uses for scientific model
Answer:
Down here
Explanation:
Scientific models are used to explain and predict the behaviour of real objects or systems and are used in a variety of scientific disciplines, ranging from physics and chemistry to ecology and the Earth sciences.
In a range of scientific disciplines, from physics and chemistry to ecology and the Earth sciences, scientific models are employed to explain and forecast the behavior of real things or systems. The correct options are a and b.
What are scientific models?The reduced visual representations of the intricately analyzed natural systems are known as scientific models.
Scientific models, which can be two-dimensional or three-dimensional, are crucial to scientific study because they allow researchers to demonstrate the viability of their hypotheses and determine whether they can be supported or refuted.
In order to help the public understand complex models, scientists utilize scientific models to convey them to them in simple terms.
To learn about animals, we use models of that animal or its body parts. Scientific models are used to learn scientific things that can be possible to learn in real-life objects.
Therefore, the correct options are a. Scientific models are employed to explain. b. Forecast the behavior of real things or systems.
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The question is incomplete. The complete question is given below:
What are some possible uses for the scientific model?
a. Scientific models are employed to explain.
b. Forecast the behavior of real things or systems.
c. To collect the model for the showpiece.
d. To put them in museums.
Kathleen is testing a mixture containing a certain substance. She takes a sample from the top and the bottom. The sample from the bottom has more of the substance than the sample from the top. What is this mixture?
Answer:
w mixture of water and sand