How are astronomers able to determine what elements are found in other stars and galaxies?
Answer:
This type of study is called spectroscopy. The science of spectroscopy is quite sophisticated. From spectral lines astronomers can determine not only the element, but the temperature and density of that element in the star. The spectral line also can tell us about any magnetic field of the star.
Explanation:
What does this quote mean to you?
Quote: “Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is $tupid.”-Albert
Answer:
It basically means that everyone is a genius in their own way and everyone has their own skills. If you decide to judge someone on what they cannot do (eg. a fish climbing a tree) rather than what they can do, it's gonna make the person feel $tupid their entire life. Not everyone can do the same thing and not everyone has the same abilities. A fish may not be able to climb a tree, but it can swim well. Just like a bee wouldn't be able to swim, but it can fly.
A student is studying the amino acid sequence of a protein shared by four organisms. The student wants to know which organism is most closely related to organism A. The student has data that shows the number of amino acid differences between organism A and each of the other organisms. Study the data in the chart. Organism Number of Difference in Amino Acid Sequence from Organism A B 3 C 5 D 1 Which organism does this data suggest is most closely related to organism A? C B D
Answer:
it's D i just took the test
2. Which type of nuclear energy is used in commercial nuclear reactors to produce electrical
energy? In two to three sentences, describe how a nuclear power plant works.
Answer:
nuclear fission
Nuclear power comes from nuclear fission
The steam is used to spin large turbines that generate electricity. Nuclear power plants use heat produced during nuclear fission to heat water. In nuclear fission, atoms are split apart to form smaller atoms, releasing energy
In nuclear power plants, neutrons collide with uranium atoms, splitting them. In the core of nuclear reactors, the fission of uranium atoms releases energy that heats water to about 520 degrees Farenheit. This hot water is then used to spin turbines that are connected to generators, producing electricity
Explanation:
Which sequence of events best describes the current theory of the origin of life on Earth?
Answer:
yes
Explanation:
Why is it important for others to believe in science
Answer:
because science is one of the most important channels of knowledge
Explanation:
because of science you can create a new knowledge, improving education, and increasing the quality of our lives.
I hope it can help.
lauren was walking in the woods when she found a rotting log. when she looked closely at the log, she saw that a decomposer was working to break down the wood. which could be the decomposer she saw on the log?
A. grass
B. mouse
C. mushroom
D. caterpillar
Answer:
C. mushroom
Explanation:
Read each question carefully, and answer yes or no to each one. At the end of each section, follow the directions to score your answers (pay close attention as the directions for scoring may change for each section). After you complete the entire assessment, total the points from all seven sections. This will give you a total health score. The higher the score, the more healthy your lifestyle. If you feel you have a low score, look back through the assessment and identify areas where you can change your unhealthy habits, and explain what changes you would make and why. Write your assessment in the essay box below.
Section 1: Physical Fitness
Section 2: Family History
Section 3: Hygiene and Medical Care
Section 4: Nutrition
Section 5: Drug Use
Section 6: Safety
Section 7: Emotional and Social Health
Total Health Score: ____
Answer:
Section 1: Physical Fitness
Do you exercise or play a sport for at least 30 minutes three or more times a week? Yes
Do you stretch before and after exercising? No
Do you warm up before exercising and cool down afterward? No
Do you think that you are at a healthy weight? Yes
Are you mostly happy with the way your body looks and feels? Yes
Do you think you have enough energy? Yes
Give yourself one point for each No response and two points for each Yes response. Section score: _10___
Section 2: Family History
Do you have a family member who:
has high blood pressure? Yes
has diabetes? Yes
has heart disease? No
has cancer? Yes
is extremely overweight? No
Give yourself one point for each Yes response and two points for each No response. Section score: ___7_
Section 3: Hygiene and Medical Care
Do you floss your teeth every day? Yes
Do you brush your teeth at least twice a day? Yes
Do you visit the dentist at least once a year? Yes
Do you use sunscreen? No
Do you know basic first aid? Yes
Are all your immunizations current? Yes
Do you get your vision and hearing checked each year? Yes
Do you see the doctor for a check-up once each year? Yes
Do you feel you get enough sleep at night? Yes
Do you know the warning signs for cancer? No
Give yourself one point for each No response and two points for each Yes response. Section score: _18___
Section 4: Nutrition
Do you eat a lot of red meat or eggs? No
Do you add salt to your food? Yes
Do you add sugar to your food? Yes
Do you eat a lot of high-fat or high-sugar foods? Yes
Do you add butter or cheese to your food? Yes
Do you choose fried foods more often than baked or broiled foods? Yes
Do you drink caffeinated drinks, such as coffee or sodas? Yes
Do you skip meals? No
Give yourself one point for each Yes response and two points for each No response. Section score: _10___
Section 5: Drug Use
Do you smoke or chew tobacco? No
Do you drink alcohol? No
Have you ever used marijuana or other illegal drugs? No
Have you ever abused a prescription drug? No
Give yourself zero points for each Yes response and two points for each No response. Section score: __8__
Section 6: Safety
Have you ever ridden with drivers who were under the influence of alcohol or drugs? No
Have you ever ridden with drivers who speed or disobey traffic laws?no
Do you ever forget to wear your seat belt? No
Do you ever forget to wear a helmet when riding a bike or skateboarding? No
Do you ever play with matches or hazardous materials? No
Is there a gun in your house? No
Give yourself zero points for each Yes response and two points for each No response. Section score: __12__
Section 7: Emotional and Social Health
Do you have hobbies or activities that you enjoy? Yes
Do you give your best effort when doing your work? Yes
Do you find it easy to laugh? Yes
Do you express anger in an appropriate way? Yes
Do you easily fall asleep at night? Yes
Do you share personal problems with someone you trust? Yes
Do you feel well-liked by others? Yes
Do you have someone you can turn to if you need help? Yes
Are your family members and close friends in good health? Yes
Are you generally happy? Yes
Give yourself one point for each No response and two points for each Yes response. Section score: _20___
Total Health Score: __85__
This is mine so it's not going to be accurate for you but please can I get a brainliest.
what is the speed of a car that travels 485 meters in 15 seconds
what are two good things that science has done for people and animals or the earth
Answer:
help provide better medical care and technology
Explanation:
medical as in antibiotics, vaccines and medical tools.technology as in how much has it made our lives easier (information is easily accessible and connecting with our is faster)Radius of circle = 3cm , what is it's diameter, circumference and area? How do I look rat-e me from a 1 to 10!
Answer:
buney şimdi what bunu annlaamm
Answer:
7
Explanation:
The poles of a solenoid can be reversed by
a cell has a 5% salt concentration is placed in a solution with a 15% salt concentration, the cell will
Answer:
Water will move into and out of the cell at the same rate, causing it to remain the same size.
Plant pollen is often carried by wind or insects from one plant to another. This process deposits the pollen containing the male sex cell on the part of the plant that contains the female sex cell.
What does this show about these plants?
They are sexual.
They are unicellular.
They are prokaryotic.
They are nonvascular.
Answer:
They are sexual
Explanation:
This is sexual because you need a mother cell and a father cell for this to happen.
Answer:
they are sexual because it takes to plants to create another one
Explanation:
Why are enzymes described as being like a lock and key?
Answer:
enzymes are compared to a lock and key as they can activate a chemical process or put that same process into a stop
Explanation:
almost all frogs undergo external fertilization
In most species of frogs, fertilization is external. The male frog grabs the female's back and fertilizes the eggs as the female frog releases them. The sperm and egg die quickly unless fertilization occurs.
Which factor would increase population size?
a. more competitors
b. unable to hide, defend, or migrate
c. ability to resist disease
d. inadequate food and resources
e. extreme temperatures
Answer:
c
Explanation:
All the others would begin to kill off a population
Does the egg or the sperm determine the biological male or female human ?
Answer:
the male that determines the sex of the offspring when fertilization occurs.
Explanation:
According to the Base Pair rule, Cytosine always pairs with
Answer:
Guanine always pairs with Cytosine. :)
send me flower parts pic
Explanation:
Hope it helps you
Give a star and brainliest
9. An organism's physical traits or visible appearance
Genotype
Pedigree
Chromosome
Phenotype
Answer:
The term "phenotype" refers to the observable physical properties of an organism; these include the organism's appearance, development, and behavior. An organism's phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes.
Explanation:
phenotype option D is the correct answer of this question .
plz mark my answer as brainlist plzzzz.
hope this will be helpful to you .
Which of the following best represents the changes to the SARS-COV-2 Virus.
A. adaptation
B. evolution
C. population
D. natural selection
Answer:
B
Explanation:
Evaluation
Some organisms reproduce sexually. Other organisms reproduce asexually. What are some benefits of asexual reproduction?
1.It It benefits organisms that are immobile
2.immobile.It gives offspring the genetic traits to survive in a particular environment
3. It uses less energy.
4. energy.All of of the above above
Answer:
3
Explanation:
because you don't have to ...you know
Answer:
It is 4 all of the above.
Explanation:
Yes because I got it right on test.
What is the identity of the planets?
A:
B:
C:
D:
Answer:
Explanation:
Distance from Sun (km)
778,600,000
4,495,100,000
1,433,500,000
2,872,500,000
Answer:
A: Jupiter
B: Neptune
C: Saturn
D: Uranus
Explanation:
Hope this helps! Have a great day!! ❤
Refer to the Newsela article "The Relationship between Hunger and War."
Part A
What is the relationship between conflict and famine?
Famine and war are often interrelated.
Famines caused by drought outnumber those caused by warfare.
All historical famines were caused by warfare.
Around half of all famines are caused by armed conflict.
Question 2
Part B
Which evidence from the text best supports the answer in Part A?
"A 2018 U.N. report called the situation in Yemen "the worst human-made disaster in the modern history of the world."
“Many of the worst wars of our time are accompanied by mass starvation. In some cases, starvation is used as a weapon."
"Food insecurity occurs when there is a lack of food or it is too expensive."
“South Sudan was also the world's most dangerous nation for aid workers in 2017."
Answer: Ali said that he/she speaks turkish
Explanation: I dont know you're answer but i will do as much as possible
What is the purpose of xylem?
Answer:
xylem, plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support. Xylem tissue consists of a variety of specialized, water-conducting cells known as treachery elements. The vascular system is comprised of two main types of tissue: the xylem and the phloem. The xylem distributes water and dissolved minerals upward through the plant, from the roots to the leaves. The phloem carries food downward from the leaves to the roots.
Explanation:
PLEASE ANSWER QUICKLY
Which pattern of inheritance does nose size follow?
complete dominance
codominance
incomplete dominance
sex-linked dominance
Answer:
incomplete dominance
Explanation:
This is because incomplete dorminance is a type of inheritance pattern in which a dorminant allele does not completely masked the effect of recessive allele. The recessive allele is expressed little and the dorminant. Example is the nose size. The allele for big nose and recessive allele for small nose are not completely dorminant.
According to Sandra Scarr's description of the three ways that heredity and environment can be correlated, passive genotype-environment correlations occur because Multiple Choice children seek out environments that are stimulating. biological parents provide a rearing environment for a child. a child's genetically influenced characteristics elicit certain types of environments. certain genes evoke environmental support.
Answer:biological parents provide a rearing environment for a child
Explanation:
According to Sandra Scarr's description on the correlation that exist between heredity and the environment, passive genotype-environment correlations occur due to the fact that certain genes evoke environmental support.
It should be noted that passive genotype-environment correlation takes place due to the fact that there's passive inheritance on the genes of the children and the environment which are provided by their parents.An example of such characteristics is when the child is athletically inclined as it's possible for the family to be athletes.In conclusion, the correct option is D.
Read related link on:
https://brainly.com/question/17392253
A population of beetles changing from yellow to green and surviving better is an example of
A. genes
B. mutations
C. natural selection
D. selective breeding
Answer:
C. natural selection
Explanation:
Natural selection is when the organisms that have the better adaptation so they survive. In this case, the green was the better adaptation so they lived.
What do we call the organized steps taken to answer a scientific problem?
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