BRAINLIESTTTT ASAP!!! 1. Based on Dalton's atomic theory, which of the following is true about all atoms of the same element?

They have different masses.
They have the same properties.
They can be divided into molecules.
They are composed of visible matter.


Answer 1
Answer: I think the second one

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You recognize that a child is choking and ask if you can help. the child nods frantically. you send someone to call 911 and stand behind the victim. what is your next action? a. give back slaps

b. give abdominal thrusts

c. give chest thrusts

d. lay the child down


According to the scenario, your next action is to give abdominal thrusts. Thus, the correct option for this question is B.

What is Abdominal thrust?

Abdominal thrusts may be defined as an emergency technique that is significantly used to help in clearing someone's airway. This procedure is implemented on someone who is choking and also conscious.

So, when you recognize that a child is choking and ask if you can help. Then you must have to perform emergency techniques in choking which is known as abdominal thrusts.

Most experts do not recommend abdominal thrusts for infants less than 1-year-old. You can also perform the maneuver yourself. It is also called the Heimlich maneuver which is used to treat upper airway obstructions caused by foreign bodies.

Therefore, according to the scenario, your next action is to give abdominal thrusts. Thus, the correct option for this question is B.

To learn more about Abdominal thrusts, refer to the link:


Answer: B. give abdominal thrusts

B is your answer i just think that it would be the right thing to do.

Hoped I Helped


A researcher determined the effect that the dosage of a certain pain medication has on headaches. How would the results best be displayed? A) pie chart. B) bar graph. C) line graph. D) data table.



Option C, line graph


A line graph is the best graphical tool to represent  any quantity that changes continuously with time.

Here,  when certain dosage of a certain medicine (which is to be tested) is given to a patient then the impacts produced by the medicine on the patient will be changing continuously. Thus, in order to capture  these continuous changing values, it would be best to use a line graph.

Hence, option C is correct.

Maybe a Line graph. C.

Assume that a student is given two different models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. How can the student demonstate the theory of endosymbiosis using the models



The endosymbiosis hypothesis is a hypothesis that suggests that the smaller prokaryotic of bacteria cells are engulfed by a larger prokaryotic cell or bacteria over a long time period. This incorporation of smaller bacteria cells inside large bacteria cells has beneficial aspects for both small and large cells.

The evolution of the eukaryotic cell by the endosymbiosis process that is evolved by engulfing different smaller prokaryotic cells by larger prokaryotic cells that result in evolved as chloroplasts and mitochondria and other organelles. The theory of endosymbiosis can be demonstrated by placing a smaller bacteria model in a larger bacteria model as a whole eukaryotic cell where the large model is cell and smaller bacteria model is any cell organelle like mitochondria.


Theory of endosymbiosis: Symbiogenesis, or endosymbiotic theory, is an evolutionary theory of the origin of eukaryotic cells from prokaryotic organisms .The endosymbiotic theory describes how a large host cell and ingested bacteria could easily become dependent on one another for survival, resulting in a permanent relationship. Over millions of years ofevolution, mitochondria and chloroplasts have become more specialized and today they cannot live outside the cell.

Theory of endosymbiosis concerns the origin of mitochondria and chloroplasts, two organelles contained within various eukaryotic cells. these organelles originated as separate prokaryotic organisms that were taken inside a primordial eukaryotic cell. Such symbiotic relationships in which two species are dependent upon one another to varying extents served as crucial elements of the evolutionary progression of eukaryotic cells .

Endosymbiosstudent demonstate the theory of is using the models:

Bacteria are prokaryotes. Bacterium contain no membrane bound nucleus and rarely contain membrane bound organelles. Simply, most don't have any large organelles with their own membranes; this means no nucleus, no mitochondriaand no chloroplast.Small must b more simple or lack mitochondria .while large have mitochondria .Focousing on the presence or absence of mitochondria and chloroplast student demonstrate the theory of endosymbiosis>


The mechanisms that regulate when a cell divides fail to work in cancer patients
true or false ?


True, it just lets cells divide unchecked, creating a mass of extra cells, for example with leukemia it is white blood cells

In a certain breed of dogs, black hair is dominant and brown hair is recessive. If two parents are heterozygous for black hair, what is the probability that their offspring will be black?


There is a 3/4 chance their offspring will be black. If you make a Punnett's (I hope that's how you spell it) square then you will find that one offspring will be homozygous for black hair, two will be heterozygous with black hair, and one will be homozygous with brown hair. Therefore, there's a 3/4 chance the offspring will have black hair. Hope this helped!
There will be a 75% chance of the offspring being black.

The introductory passage describes ways that virophages use megavirus-producing factories in amoeba to reproduce because they are unable to do so independently. compare characteristics of viruses and virophages by dragging the characteristics into the correct bin to indicate whether each is a characteristic of virophages only, viruses only, both, or neither.


The virophages require a bigger virus to double themselves known as the host-virus. They are devoid of the genes for proteins required to double themselves and are always smaller in comparison to archaea and bacteria. On the other hand, in viruses, the genetic information can be in the form of RNA or DNA.  

Both the virophages and viruses possess a protein capsid enveloping their nucleic acid. Both the forms do not belong to any of the three domains, and they cannot replicate on their own. Neither the virophages nor the viruses produce energy via mitochondria.  


Unlike identical twins, fraternal twins A. are always the same sex

B. are produced from two identical embryos

C. result from two eggs fertilized by two different sperms.

D. is wrong


C. 2 eggs, 2 different sperm

One measure of the human impact on the biosphere is called A. biological magnification.
B. biodiversity.
C. an ecological hot spot.
D. an ecological footprint.


The correct answer is:  [D]:  "ecological footprint" .

What si the process of photosytheses


Photosynthesis is the process by which plants, some bacteria and some protistans use the energy from sunlight to produce glucose from carbon dioxide and water. This glucose can be converted into pyruvate which releases adenosine triphosphate (ATP) by cellular respiration. Oxygen is also formed.

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