A 7-year-old child is pulled from below the water of a neighbor's pool. the neighbor's children say the child did not fall or jump into the water - she was swimming and suddenly slipped under the water. you kneel beside the child and find she is unresponsive. you send someone to phone 911 while you remain with the child. what should you do next?


Answer 1

Administration of basic life support is necessary when put in htis scenario.

The first thing to do is to open the airway with the head-tilt/chin-lift maneuver, look-listen-feel for breathing, and if the child is not breathing normally give 2 rescue breathes.

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Transgenic plants are plants having?a)no geneb)Genes in transpositionc)Genes with no function to performd)Genes of another organism​
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Roger is at a wedding reception where he has been introduced to over 50 guests whom he has never met. He would like to remember as many names as possible. Describe the role that sensory storage, short term memory and long term memory play for roger in this situation.


The  ability of the brain to acquire information, feelings, and  processed, keep, and recollect this for the subject is called memory.

The threes stages of memory are

  • sensory storage or memory
  • short term memory and
  • long term memory.

The ability of Roger to  keep memory of the names with these three stages, depends on how pays attention and his ability  to process information.

The sensory storage depends on the five sense to send  information to his brain. Thus, Roger needs to pay attention to the faces,(iconic memory) voices (echoic memory),  feel or touch (Haptic Memory)  and (Smell) aroma of perfumes when been introduced to the guest.

 These information are retains for few seconds after the guest( the sensation has gone).Thus with this ,he sees every guest as collective set of people without  and not as individual. For his brain to process the information as individual  he needs to network with the Short memory.

The short memory  is the type that retain the information( the names ,voices and touches) of the guests he was introduced to at that present moment. He needs to pay attention and try to retain these sensation to prevent them from been forgotten. These  sensations are  retain  tentatively until the  information is processed. It is these processed information that are stored  by his brain ,and not the sensory signals like in the sensory.

In order for the processed or interpreted information to be stored and used for longer time, and recalled when needed, these are transferred to the long term memory. This is subdivided into  two types; explicit  and implicit memory.

He will makes use of the explicit memory because the stored names can  be recollected consciously after storage when the 3 types of memories are merged. Unlike the  implicit that can not be access consciously.

With the capture of the image of the guest with sensory memory, temporary store  the processed names  with short term and   stored this  for future, Roger should  be able to remember these names.



In this situation, the role of sensory storage would be-

as he enters at reception the smalls, images, would be sensed by him and make its burn the memories in his brain.

Short-Term memory helps in make him remember by the names associated with the small gesture, movement, mannerisms made by them. For example, sam stutters can be remembered as stutter Sam.

Long-Term memory helps in building memory by long haul with help of scenery by relating individuals he already know before the reception and whenever see them mind reminds the name.

This diagram shows that embryos of certain species develop almost identically in the earliest stages of embryonic development. These physical similarities indicate that there are also genetic similarities among these organisms. The physical and genetic embryological similarities among these organisms suggest that they A. descended from a common ancestor. B. have multiple vestigial organs in common. C. are members of the same genus. D. hunt and breed in similar habitats.


The correct option is A.
The observation that the embryos of certain species have physical and genetical similarities in the earliest stages of embryonic development shows that individual development of an organism shows its revolutionary history and this is taken as an evidence of common ancestry. Scientists takes this observation to mean that all life on earth developed from a single ancestor.

Very often, carbon is absorbed by more than one reservoir. For example, carbon released in the smoke from industrial pollution is initially absorbed by the atmosphere, but also by the oceans eventually. In this activity, identify the first reservoir of carbon absorption for the given activities and processes. Drag the appropriate items to their respective bins. If you feel that an item is applicable to more than one bin, sort it into the most appropriate bin.1. driving a car
2. respiration by marine animals
3. photosynthesis
4. eating vegetables
5. forest fire
6. fossil fuel formation
Atmosphere Hydrosphere Biosphere Lithosphere


The carbon cycle operates in nature that maintains the carbon composition in nature. The carbon is released into the atmosphere in the form of oxides, hydroxides and then recycle back into the atmosphere.

When carbon is released?

The carbon can be released into the atmosphere by the respiration of the animals in the form of carbon dioxide. The burning of fossil fuels and wood combustion also releases carbon into the atmosphere.

The decomposition by microbial organisms also releases carbon dioxide in the nature. The main carbon reservoir present in the atmosphere is lime stones in the oceans and in the biomass of the organisms. The carbon can be used up by the plants during the process of photosynthesis.

Therefore, The carbon cycle operates in nature that maintains the carbon composition in nature. The carbon is released into the atmosphere in the form of oxides, hydroxides and then recycle back into the atmosphere.

Learn more about  carbon cycle on:




1 2 4


Which of the following statements regarding angiotensin II is(are) correct? I. Angiotensin II is a hormone that is secreted by the kidneys.
II. A well-hydrated person is likely to have higher blood levels of angiotensin II than a dehydrated person.
III. Angiotensin II helps to slow the rate at which urine is produced.
IV. A class of drugs known as ACE inhibitors promote (enhance) the formation of angiotensin II.



I. Angiotensin II is a hormone that is secreted by the kidneys.


The angiotensin II is a vasoconstrictor molecule secreted by the kidney. This hormone is known to be involved in the regulation of blood pressure and has effects on water and sodium intake.

Angiotensin II plays roles in the immune response and in the regulation of inflammatory response pathways

two students are discussing natural selection in bacteria and how it can relate to antibiotic resistance in bacteria





some the bacteria are resistance to antibiotics due to mutation.

What will most likely happen if the plankton population decreases in this ocean system​


Answer: The shrimp population would decrease.