Helium has an atomic number of 2. Is the model of the helium atom above is
showing an ion? Explain why or why not.
Answers
Answer:
Yes, the model of the helium atom is showing an ion.
Explanation:
Helium, with an atomic number of 2, should have 2 protons and 2 electrons; however, the model only depicts 1 electron. That means the helium must have lost an electron, making it a +1 charge and an ion.
Related Questions
What is the experiment called, and what is its significance?
A. The Hershey-Chase experiment showed that the radioactive DNA is found inside the
Infected bacteria; therefore, DNA Is the molecule that carries genetic Information,
B. The Hershey-Chase experiment showed that viruses with other radioactive DNA or
radioactive protein can Infect bacteria; therefore, both types of molecules can carry
genetic information.
.
C. The Franklin X-ray experiment showed that radioactive DNA forms a helical structure
Inside the infected bacteria; therefore, DNA is the molecule that carries genetic
Information.
D. The Franklin X-ray experiment showed that either radioactive DNA or radioactive
protein can form a helical structure Inside the infected bacterla; therefore, both types of
molecules can carry genetic Information,
OA
Answers
Answer:
The most well-known Hershey-Chase experiment was the final experiment, also called the Waring Blender experiment, through which Hershey and Chase showed that phages only injected their DNA into host bacteria, and that the DNA served as the replicating genetic element of phages
Explanation:
I need an answer ASAP due in 5 minutes
Which two statements describe what happens to energy during cellular
respiration?
O A. Some chemical energy is transformed into thermal energy:
OB. Some thermal energy is transformed into chemical energy.
C. Light energy is transferred
out life processes.
molecules of ATP and used to carry
D. Chemical energy is transferred to molecules of ATP and used to
carry out life processes.
SUBMIT
Answers
You have a rectangular block of wood measuring 4 cm long, by 3 cm wide, by 3 cm high. What is the volume of this block of wood in cm
Answers
Answer:
36 cm
Explanation:
4x3= 12
then,
12x3= 36 cm
what is the steps of photosynthesis
Answers
Answer:
(1) absorption of light, (2) electron transport leading to the reduction of NADP+ to NADPH, (3) generation of ATP, and (4) conversion of CO2 into carbohydrates (carbon fixation).
Explanation:
Please help quickly I’ll give brainist!
Answers
Answer:
It may be 2 and 3 only but this is not my strong suit so I dont know
Explanation:
Read the comments about translation from the two students below.
Student A: "The purpose of translation is to convert the sequence of bases of mRNA into a polypeptide chain of amino acids to form proteins."
Student B: "The purpose of translation is to make a duplicate copy of DNA."
Which statement about the students’ comments is correct?
Student A is incorrect, because the purpose of translation is to convert DNA to RNA.
Student B is incorrect, because replication is the process that makes a duplicate copy of DNA.
Student A is correct, because translation occurs in the nucleus.
Student B is correct, because the DNA must be copied before mitosis.
Answers
The study of genes and inheritance is called genetics.
The correct answer is option B.
The translation is defined as the process in which mRNA is read by the ribosome and gets the amino acid to form the polypeptide and protein. Student two claimed is the process replication.
Replication is defined as the process of formation of new DNA from the old DNA.
According to the student, student 1 is correct.
Hence, option 2 is correct.
For more information, refer to the link:-
https://brainly.com/question/26043585
The table indicates a(n) __________ in greenhouse gases, which should in turn cause a(n) __________ in global temperatures.
Answers
Answer:
Since there is no graph attached, the best I can do for now is tell you the possible answers based on the blanks.
A rise in greenhouse gases, should in turn cause a rise in global temperatures.
A decrease in greenhouse gases, should in turn cause a decrease in global temperature.
Some greenhouse gases are good for the atmosphere, but air pollution adds to it and causes more greenhouse gases to be added to the atmosphere, and therefore raises the Earth's temperature over time. This could be dangerous to species all over the planet as they may not be able to adapt.
If you add the table, I can answer more accurately.
Explanation:
The belief that leadership qualities can be developed within the individual Marine, and that leaders have the responsibility for developing those qualities is the ________.
Answers
Answer: Marine Corps philosophy of leadership.
Explanation:
Some of the Marine Corps Leadership qualities include inspiring others, through patriotism, having good morals, technical proficiency etc.
The objective of the Marine Corps leadership is simply to enable the Marines possess leadership qualities which will be essential to the Marine Corps and also to the society at large.
Someone please tell me if they're right...
Answers
Answer: it looks right
Explanation:
Humans have a double circulation system. There is a low pressure circulation and a high pressure circulation.
Explain how the structure of the heart enables it to pump blood into two circulations at different pressures
Answers
The cardiac muscle in the heart is myogenic, thus allowing it to keep its pace. There is a septum dividing the two circulations from each other in the heart, this allows for there to be pumping chambers (or two ventricles.) Each ventricle pumps to its own circulation. But the left ventricle is more muscular than the right. Thus this allows for higher pressures to be built in the left ventricle, therefore blood can be pumped around the whole body by the left ventricle. The right ventricle is less muscular as it only has to build up enough pressure to pump blood to the lungs.
Explanation:
Explain how sexual reproduction produces variation.
Answers
Answer:
Half the DNA from each parent goes to offsrping so that means that the offspring has entirely new DNA and not cloned.This means that the organism is different to its partents and therefore variated
the OECS was established on ?
Answers
Answer:
It was established on June 18 of 1981.
What is homolog?
PLEASE ANSWER
Answers
Explanation:
A gene similar in structure and evolutionary origin to a gene in another species. if it's wrong let me know so I'll look into more detail.
which of the following is NOT a characteristic of organisms found in the plant kingdom
A.cell walls contain cellulose
eukaryotic cells
heterotrophic
multicellular
Answers
Answer: heterotrophic
Explanation:
Answer:
heterotrophic
Explanation:
took test
for addition and subtraction properties 1.b -7 > - 9
Answers
1010010101010101010010100101010101010101010101001010101001010
Which image correctly shows how light
would interact with the t-shirt and
shorts?
Answers
Answer:
Your answer is C).
Which two ecosystems are terrestrial?
O A. ponds and lakes
O
B. forests and estuaries
o C. oceans and grasslands
OD. forests and grasslands
Answers
What is a stinging cell that is a distinguishing feature of all cnidarians
Answers
Corals, sea anemones, jellyfish, and their cousins make up this phylum. Cnidocytes, specialized stinging cells that line the tentacles of Cnidaria, are used to capture prey.
What cnidarians having characteristics of stinging cell?Cnidarians have specialized cells called cnidocytes, sometimes known as “stinging cells,” which contain nematocysts.
These cells, which are concentrated on the animal's mouth and tentacles, have the ability to use toxins to paralyze prey. The coiled threads in nematocysts may be studded with barbs.
Nematocysts are unique cellular weapons employed for both predation and defense found in jellyfish, sea anemones, and other cnidarians.
Therefore, Nematocysts are made up of a pressurized capsule with a coiling thread like a harpoon inside.
Learn more about cnidarians here:
https://brainly.com/question/3606056
SPJ5
7) Which star on the H-R diagram has a low surface temperature and the highest absolute brightness?
Explain how you arrived at that answer.
HURRY PLZZZ
Answers
The Hertzsprung-Russell diagram (commonly abbreviated as the H-R diagram) is a scatter plot of stars indicating the relationship between the absolute magnitudes or luminosities of the stars compared to their spectral ratings or effective temperatures. More simply, each star is plotted on the graph to measure its brightness compared to its temperature (color).
Hertzsprung-Russell diagram.
The diagram was created around 1910 by Ejnar Hertzsprung and Henry Norris Russell and represents an important step toward understanding stellar evolution or "the way stars go through sequences of radical and dynamic change over time."
It was made in 1905 by the astronomer Ejnar Hertzsprung and, independently, in 1913 by Henry Norris Russell. The Hertzsprung diagram showed the luminosity of stars as a function of their color, while the initial Russell diagram showed the luminosity as a function of spectral type. Both diagrams are equivalent.
What is the “new” base found in RNA?
Answers
Answer:
RNA is a polymer with a ribose and phosphate backbone and four different bases: adenine, guanine, cytosine, and uracil. The first three are the same as those found in DNA, but in RNA thymine is replaced by uracil as the base complementary to adenine.
Explanation:
Please answer ASAP!!
Which term refers to a fertilized egg after the cells have begun to differentiate?
A. Blastocyst
B. Fetus
C. Embryo
D. Zygote
Answers
Answer:
D
Explanation:
Blastocyst refers to a fertilized egg after the cells have begun to differentiate. So, the correct option is A.
What is Blastocyst?A ball of cells known as a blastocyst develops in the first five to six days of pregnancy, shortly after a sperm fertilizes an egg. It embeds itself in the uterine wall, developing into an embryo and subsequently a fetes.
A healthily developed embryo will include six to ten cells three days following fertilizations. The fertilized egg develops into a blastocyst, a rapidly growing ball of cells, on the fifth or sixth day. The innermost collection of cells will develop into the embryo. The outer group will develop into the cells that support and safeguard it.
Within the first two weeks following conception, a developing, fertilized egg is known by a variety of names, include zygote, morula (day 4), or blastocyst (day 5). About 10 weeks after the previous menstrual cycle, or 8 weeks after conception, the embryonic period begins.
Therefore, the correct option is A.
Learn more about Blastocyst, here
https://brainly.com/question/29599409
#SPJ7
Xavier drew a diagram to compare the roles of oxygen and hydrogen in photosynthesis.
Which label belongs in the area marked X?
Enters plant as a part of the water
Combines with carbon dioxide
Is released into the air through stomata
Is stored in leaves for later use
Answers
Answer:
Is released into the air through stomata
Explanation:
Oxygen and hydrogen both exists as gaseous molecules in the atmosphere. However, one of them (oxygen) is a product of photosynthesis while the other (hydrogen) is one of the constituents of the molecule that starts the process of photosynthesis.
According to this question, the X used in the attached diagram is the role of oxygen in photosynthesis. Oxygen is released as a product of photosynthesis and goes out of the plant into the air via the STOMATA. Hence, the gas released into the air via stomata is OXYGEN.
Answer:
C. Is released into the air through stomata
Explanation:
:3
16. The genetic variation that leads to evolution can occur when genes from
one population are introduced into the gene pool of a different population. This
process is known as
A.mutation
B. crossing over
C. natural selection
D. gene flow
Answers
11. Water retained beneath Earth's surface is called
a. precipitation.
b. transpiration.
c. condensation.
d. groundwater.
Answers
Answer:
d
Explanation:
Explain 3 consequences that would happen if the hawk were removed from the food web pls help plssssssssssss
Answers
Answer:
First mice would take over and it would start a plague then they would carry mortal dieeases after that lot of people would die.
Explanation:
Answer:
A overrun population of the prey it hunts.
Explanation:
when there's not a predator in the food web, its prey such a rodents and small mammals start to overrun the ecosystem
Measuring Cellular Respiration
A student wanted to compare germinating pea seeds (growing) and nongerminating pea seeds
(not growing). She wanted to test two variables: germinating vs nongerminating peas at two
different temperatures: 10° C and 25° C.
The student proceeded to set up two electronic water baths: a warm water bath (25° C) and a
cold water bath (10°C). She also set up four respirometers: two containing germinating peas
and two containing non-germinating peas. Where would she need to place the respirometers in
terms of water baths to ensure that she was setting up a controlled experiment?
Statesi
Answers
Answer:
Follows are the solution the given choices:
Explanation:
The four approaches represent are arranged as follows:
Two approaches represent must be positioned in the [tex]10^0 \ C[/tex] water bath. Another respirometer to pea seeds so one respirometer to pea seeds without germinating.
She must put 2 breath meters at the [tex]25^0 \ C[/tex] water bath. Yet another respirometer to pea seeds or one respirometer to pea seeds without germinating.
The regulation would be carried out after germinating as well as nongerminating pea seed to bathometer in [tex]10^0 \ C[/tex] water bath.
If the codon on mRNA is CGA what is the anticodon on the tRNA?
A. GCA
B. GCT
C. CGA
D. GCU
Answers
as Adenine makes complementary base with Guanine and Cytosine with Uracil.
If the eyepiece has an inscription of 12.5x. What is the total magnification of the microscope when she observed it under low power objective?
Answers
Answer: 10X
Explanation:
To figure the total magnification of an image that you are viewing through the microscope is really quite simple. To get the total magnification take the power of the objective (4X, 10X, 40x) and multiply by the power of the eyepiece, usually 10X.
If the eyepiece has an inscription of 12.5x, then total magnification under low power could be 125x as the magnification under objective lens could be 10x.
What is the magnification of a microscope?
A simple microscope or magnifying glass can produce an image of the object. The object is focused upon by the microscope or the magnifying glass. There are simple magnifier lenses that are bi-convex, which means that they are thick at the center compared to at the periphery.
The intermediate plane of the image is normally located about 10 millimeters below the top of the body tube of the microscope. It is at a specific location. This location is within the fixed internal diaphragm of the eyepiece.
Between the back focal plane of the objective and the intermediate image, there is a distance which is termed the optical tube length. The value is different from the mechanical tube length of a microscope. It is the distance between the nosepiece, where the objective lens is attached, and the top portion of the observation tubes. Here the eyepiece lens is inserted.
Therefore, if the eyepiece has an inscription of 12.5x, then total magnification under low power could be 125x as the magnification under objective lens could be 10x.
Read more about magnification, here
https://brainly.com/question/2648016
#SPJ2
What effect of air pollution is caused when sulfur dioxide gets high into the
atmosphere?
Global warming
Acid rain
Respiratory infections, lung cancer, and heart disease
Damage to the ozone layer
Answers
Answer:
Respiratory infection , lung cancer and heart disease
Explanation:
Sulfur dioxide affects the respiratory system, particularly lung function, and can irritate the eyes. Sulfur dioxide irritates the respiratory tract and increases the risk of tract infections. It causes coughing, mucus secretion and aggravates conditions such as asthma and chronic bronchitis
hope it helps:)
Answer:
answer is Acid rain
Explanation: took the quiz
13. Molecular clocks based on mitochondrial DNA comparisons are best
used to classify (page 315)
a. clades.
b. closely related species.
c. distantly related species.
d. domains.
Answers
Answer:
c
Explanation:
hope this helps