Biology High School

A child that is not stimulated with a normal environment is likely to show ____.​

Answers

Answer 1
The child have fewer neural synapses than a stimulated child. In our nervous system, synapses are structures that allows neurons to conduct electrical impulse from each other. Synapses transmits information via electrical or chemical means. In chemical synapses, the electrical activity is converted into the release of neurotransmitter that binds in to the receptors that can be found in the post synaptic membrane.In Electrical impulse, the pre and post synaptic cell membranes are connected by synaptic clefts. This allow the passage of  electrical current causing changes in the voltage in the presynaptic cell and induce voltage change in the post synaptic area.

Related Questions

if you flip a penny 99 times and each time it came up heads then the chance of the penny coming up heads is ___
a.1%
b.50%
c.25%
d.100%

Answers

The chances of heads as a result when flipping a penny will always be 50%. Although heads came up 99 times in a row, the events that occurred before will not affect the probability of the current event in terms of a coin flip.

There are 1 out of 2 chances of it occurring or 1/2. Divide that and multiply it by 100% to get the probability in percent. So the answer will be 50%.

The answer is B.

The liquid portion of blood that comprises 55 of the blood's volume is called

Answers

Pretty sure the answer is "Plasma "

which macromolecule makes up the majority of the cell membrane?

A.) nucleotide
B.) lipid
C.) protein
D.) carbohydrate

Answers

The answer is
B.) Lipids 


Answer:

B-Lipids

Explanation:

What component of membrane contains a hydrophobic region and acts as the primary barrier to most foreign substances?

Answers

phospholipid bilayer is the component of membrane contains a hydrophobic region and acts as the primary barrier to most foreign substances.

Phospholipids are the component of membrane contains a hydrophobic region and acts as the primary barrier to most foreign substances.

What is hydrophobic region?

A typical monomeric globular protein has a single, sizable, interconnected hydrophobic region that makes up around 60% of the solvent-accessible surface area. This region is generated from the faces of apolar atoms. The distribution of acyl chains and sterols in the hydrophobic area affects membrane stiffness and fluidity.

The primary constituents of the bilayer of phospholipids that composes the plasma membrane. Because they are amphipathic, or have both hydrophilic and hydrophobic areas, they are well suited for this function.

Thus, phospholipids are the component of membrane contains a hydrophobic region and acts as the primary barrier to most foreign substances.

To learn more about hydrophobic region, refer to the link below:

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Which type of muscle tires quickly during exercise. smooth muscle breathing muscle skeletal muscle cardiac muscle?

Answers

the skeletal muscle

A 19-year-old primigravida at 38 weeks' gestation, in active labor for the past 8 hours, is admitted to the hospital accompanied by her mother. on admission, the client's cervix is 5 cm dilated, her blood pressure is 120/84 mm hg, and she is breathing rapidly, feeling dizzy and light-headed. the nurse determines that the client is most likely experiencing effects of which factor?

Answers

The client is experiencing the effects of hyperventilation. A patient is said to be hyperventilating during labor if she is actually eliminating more carbon dioxide than what is expected. This is what makes her become dizzy or light headed. It is important to know that being dizzy or light-headed is not correlated with conditions such as elevated blood pressure, rapid cervical dilation, or excitement because of the labor process. 

According to the endosymbiotic hypothesis why did the large cell not destroy the small aerobic cell they engulfed

Answers

 According to the endosymbiotic hypothesis, the large cells did not destroy the small aerobic cells they engulfed because they were a source of energy. These small aerobic cells were beneficial.

Hope this helps!

-Payshence xoxo

Prokaryotes reproduce rapidly and this allows genetic variation to spread quickly through a population. what two processes can create variations in prokaryotic populations?

Answers

Genetic recombination and mutation

Which sentence best describes the bioremediation of pollutants?

(A) Bacteria are used to decompose an oil spill.

(B) Detergents are added to water to break down oil.

(C) An oil spill is ignited and allowed to burn.

(D) An oil spill is vacuumed off the surface of the water.

Answers

Answer:

The correct answer is option A, Bacteria are used to decompose an oil spill

Explanation:

Bioremediation is a process which occurs either naturally or is mechanically introduced to consume/breakdown the environmental pollutants to reduce the concentration of hazardous waste at a contaminated site. It is usually done in a non-sterile environment in such a way that the microorganisms which are introduced in it get adapted to the local ecosystem.  

Some common application of bioremediation technology involves on- or off-site treatment at surface or in situ treatment.  

What is the acceleration of a 45 kg mass pushed with 15 N of force? What is the acceleration if the force changes to 25 N? What if the mass changes to 70 kg?

Answers

a = .33m/s^2

a=.55m/s^2

don't understand the last question

Answer:

A= 0.33m/s

A=0.56m/s

A=0.21m/s

A= 0.35m/s

Explanation:

To calculate acceleration, you will use the formulae,

Force=mass ×acceleration.

F=MA.

If the force is 15N, Mass is 45g , acceleration ?

15=45 × a

15=45a.

Divide through by 45 to get a

a=15/45

Acceleration is 0.33m/s

B) acceleration if forces changes to 25N.

F=MA

F= 25, M= 45 a=?

25=45 × a

25= 45a

Divide through by 45 to get a.

a= 25/45

Acceleration is 0.56m/s

C) Acceleration if mass changes to 70N.

F= MA

15= 70 × a.

15= 70a

Divide through by 70

15/70= a

Acceleration is 0.21m/s

If the Force is 25N, Mass is 70kg, acceleration will be.

F=MA

25=70 × a

25=70a

Acceleration= 25/70

Acceleration is 0.35m/s

i need this asap!

For the location and geologic periods represented by these rock layers, the most drastic and sudden change in life forms occurred at the end of the _______ geologic period.

A.
Carboniferous
B.
Devonian
C.
Cambrian
D.
Silurian

Answers

Its B. .......................................

Researchers have identified a neurotransmitter called _____ that works like thc, the active ingredient in marijuana. excessive use of marijuana has been shown to reduce the production of this neurotransmitter.

Answers

ANANDAMIDE is the answer

1. Which of the two types of erosion occurs due to the activities of man?

A. Geologic erosion
B. Accelerated erosion

2. Erosion can be caused by: ( choose three )

[ ] solar radiation
[ ] water
[ ] alpine/ snow avalanches
[ ] glaciers
[ ] wind

3. what type of best management practices would/should be used in places where ground is sloped? Chose all that apply

[ ] terraces
[ ] crop rotation
[ ] windbreaks
[ ] gas waterways
[ ] contour

4. The “Dust Bowl” event of the 1930s occurred in what Region of the United States?

5. The mass soil erosion that occurred during the Dust Bowl event was caused by several contributing factors. Choose all that influenced this strategy

[ ] decades of settling and farming had left tilled soil bare to the wind
[ ] severe drought was affecting the entire region
[ ] wild herds or buffalo over grazed the plains
[ ] native grasses had been removed for farming

6. True or false: scientists believe that over grazing and inappropriate farming economies can make the air above the ground drier and warmer— and therefore less likely to generate rain clouds, thus influencing drought in a region.

A. True
B. False

Answers

1. Accelerated erosion
2. Water, glaciers, and wind
3. Not sure
4. Pan handle of Texas
5. All of those answer could apply
6. True
Hope this helps

1) Accelerated Erosion

2) B, C, D

3) Terraces, Contour Cultivation

4) Great Plains Region

5) A, B, D (C is wrong, I chose that one and missed)

6) True (This doesn't mean that C is right in the above answer, it is still wrong. Learned that the hard way)

I just took this test and found the correct answers

A feature unique to human teeth and found generally in hominini teeth is:

Answers

a canine that shows wear on the the tip of the teeth 

Which best describes the role of a negative feedback loop?

Answers

Negative feedback is a reaction that causes a decrease in function. It occurs in response to some kind of stimulus. Often it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostatis, as in biology, or equilibrium, as in mechanics.

The answer is A i know you got this already it's 2019 now.

What are chemical mechanisms that start a reaction

Answers

To activate means to start, and activation energy starts the reaction, which means activators start the reaction. 

Answer: Activators

PLEASE HELP ASAP!!!!

The image is an energy pyramid for a particular food chain.

The amount of energy received by the macaws will be ______.
1. 56,000 Cal
2. 560,000 Cal
3. 560 Cal

Macaws are captured and kept as pets. If the number of macaws decreases because of excess capture, the amount of energy received by the ocelots will be ______.
1. More than 5,600 Cal
2. Less than 5,600 Cal
3. Equal to 5,600 Cal

Answers

1) The answer is 56,000 Cal. Energy from the sun is taken by photoautotrophs (green plants) through the process of photosynthesis. Some of this energy is then taken by consumers when they feed on plants, with only 10% of the energy taken by the primary consumers, then when the secondary consumers feed on the primary consumers they also take 10% of the energy, and the process continues. The rest of energy is lost inform of heat energy. Therefore; the energy recieved by ocelot (tertiary consumers) is 10% of  the energy from the macaw (secondary consumer). hence
(5600/10)×100= 56000 Cal

2) The answer is  Less than 5600 Cal
When the number of Macaw (secondary consumers) decreases the number of tertiary consumers also decreases since they depend on the secondary consumers  for energy. Thus the energy obtained from the remaining macaw will be lower. 

Which of the following is an example of a disease that is properly matched with one of its environmental risk factors?

Hypertension—parents' genes
Arteriosclerosis—family history
Hemophilia—poor nutrition
Anemia—iron-deficient diet,

Answers

The answer is Anemia—iron-deficient diet. Anemia is a result due to the lack of iron which caused the decrease of the number of red blood cells in the body.  If you do not have enough iron then it will result to fewer and smaller red blood cells in your body. As we all know, hemoglobin is used to carry oxygen, so when you lack hemoglobin,there is a lack of oxygen supplying for your body also.

Answer:

The answer is D

Explanation:

Why can benedict's solution be used to distinguish between glucose and sucrose?
a.glucose is a carbohydrate, and sucrose is a protein.
b.benedict's solution will release carbon dioxide bubbles from sucrose, but it cannot release carbon dioxide from glucose.
c.glucose is a reducing sugar, and sucrose is not a reducing sugar.
d.benedict's solution turns orange in the presence of sucrose, but remains blue in the presence of glucose. submit for grading save and finish later?

Answers

c........................................................................................................

Explain the fluid-mosaic model of membranes. how are proteins found at membranes described? what types of side chains would be found in regions of proteins that interact with phospholipid tails?

Answers

he fluid mosaic model of the plasma membrane. The fluid mosaic model of the plasma membrane describes the plasma membrane as a fluid combination of phospholipids, cholesterol, and proteins. Carbohydrates attached to lipids (glycolipids) and to proteins (glycoproteins) extend from the outward-facing surface of the membrane.

Where are drainage pads most often needed during post mortem care?

Answers

Drainage pads most often needed under the perineum during post mortem care. Anatomical region corresponding to the floor of the pelvis, formed by the set of soft parts that close down the bottom of the pelvis minor (pelvis minor), the pelvic excavation (cavum pelvis).

Drainage pads are required during post mortem care to manage bodily fluids in areas affected by gravity or trauma, such as the mouth, nose, or any incisions. They are particularly important in forensic cases with trauma evidence to maintain the integrity of the remains for potential legal proceedings or further examinations.

Drainage pads are most often needed during post mortem care in areas where bodily fluids are likely to leak due to the effects of gravity after death. These areas can include the mouth, nose, ears, and any incisions made during an autopsy or resulting from trauma. Particularly in cases where there is evidence of trauma before or around the time of death, such as injuries from sharp objects or gunshot wounds, the care of these wounds requires attention to prevent leakage.

For instance, cuts to the bone made by sharp implements, which often follow a straight line as seen in various forensic studies, indicate a need for careful management during post mortem procedures. Similarly, the attending person might need to dress wounds or clean areas affected by complications such as gangrene. The containment of fluids and the preservation of the remains are critical, especially if the case may proceed to legal investigations or require further medical examinations, hence the importance of a correct and professional approach to post mortem care.

How did the increased availability of atmospheric oxygen affect the evolution of the eukaryotic cell?

Answers

The cell requires oxygen, and eukaryotic cells are expensive to run. they require a lot of energy and nutrients, and oxygen is one such component. the oxygen is necessary for aerobic respiration, which allows the cell to do a lot, including evolve, proliferate, adopt new niches, habitats, biochemical habitats, sustain life in extreme conditions, and perhaps eventually co-operate with other cells and create multicellular life. Multicellular life is virtually impossible without aerobic respiration.

Explain how our respiratory and circulatory systems relate to cellular respiration and ATP.

Answers

Cellular respiration, which generates ATP in your cells, requires oxygen to take place, also, it generates CO2 as a waste product.
The respiratory system allows oxygen to diffuse into your blood, and carbon dioxide to diffuse out. The blood then carries the oxygen to the cells, so cellular respiration to continue. When the blood reaches the cells, it also takes the carbon dioxide out of the cells, and carries it to the lungs to get rid of it.

what are the most common uses of fish in the world? select all that apply.
source of diet protein for human
bones are ground up and mixed into certain plasters
food supplement for livestock,pets, and hatcheries
extracted oils are used to produce glue,lubricants, and ink
select all that apply.

Answers

Answer:

source of diet protein for humans

food supplement for livestock, pets, and hatcheries

extracted oils are used to produce glue, lubricants, and ink

Explanation:

Answer:

Explanation:

source of diet protein for humans

food supplement for livestock, pets, and hatcheries

extracted oils are used to produce glue, lubricants, and ink

In what ways are animals treated differently in sustainable agriculutre

Answers

In sustainable agriculture, the animals are not packed into tight quarters, they have flexibility whist feeding the livestock, and they allow them to roam freely.

Molecules such as polypeptides are too large to travel through transport proteins and must enter or leave cells through ____________ transport.

Answers

Bulk transport. Bulk transport uses vesicles to transport  large macromolecules across the plasma membrane. These bulk transport includes exocytosis and endocytosis. Exocytosis is a type of bulk transport where molecules move out of a cell via secretory vesicles while endocytosis is the vicevarsa of exocytosis. Other types includes phagoctosis and pinocytosis. 

Galen's new baby is scrunching up her face, breathing irregularly, making little sounds, and moving her eyes rapidly back and forth under closed lids. galen asks you if this means the baby is waking up. from what you know about sleep cycles, your best answer would be _____.

Answers

The answer would be: No, the baby is most likely in the REM sleep stage

One of the cycles of sleep called Rapid Eye Movement or REM. In this cycle, the eye is moving constantly and intermittently. The eye movement is not voluntary and the baby is not a sign of waking up. This cycle is important, so the parent should not interrupt it by waking the baby.

Final answer:

Galen's new baby is likely in a phase of REM sleep, which is characterized by rapid eye movement, occasional body twitching and irregular breathing. This phase doesn't indicate the baby is waking up.

Explanation:

Based on the behavior Galen's new baby shows - scrunching up her face, breathing irregularly, making little sounds, moving her eyes rapidly back and forth under closed lids - it appears that she is probably in an REM (Rapid Eye Movement) sleep phase, not waking up. This phase of sleep is characterized by such eye movement and occasional body twitches. Babies spend a lot of time in REM sleep, which is crucial for the extraordinary brain development happening in their early life.

Learn more about REM Sleep here:

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The role of active cytotoxic t cells is to attack __________. the role of active cytotoxic t cells is to attack __________. extracellular viruses and bacteria body cells that have been infected circulating proteins complement proteins circulating antibodies

Answers

The role of active cytotoxic t cells is to attack  cancer cellsm body cells that have been infected and damaged in other ways. extracellular viruses and bacteria body cells that have been infected circulating proteins complement proteins circulating antibodies.

- a cytotoxic t cell is also know as killer cell. they can recognize a specific antigen - which is a foreign material or body. 

Studies conducted in England during the industrial revolution have shown that children born to poor families were on average shorter than those born to wealthy parents. The most likely explanation for the difference in height is difference in

Answers

The answer is nutrition. Much like the difference between the height of people today and our grandparent's generation. Improved nutrition among wealthy families means that the bodies of the members of those families could reach their full potential height as limited by their genetics, and environmental factors did not come into play. In other words, the heights of poorer people are limited by both nurture and nature, whereas those of wealthyl people are limited only by nature.

The fibrous connective tissue that makes up the outside covering of the diaphysis is the

Answers

Answer: fibrous periosteum

The diaphysis is the main shaft of a long bone which is made up of cortical bone which contains bone marrow and fats. It is covered by a fibrous connective tissue called the fibrous periosteum. The cells in this layer are densely packed and contain blood vessels, nerve endings and lymphatic.  

The fibrous connective tissue that makes up the outside covering of the diaphysis is the periosteum.
It is a dense membrane composed of fibrous connective tissue that closely wraps all bone except that of the articulating surfaces in joints, which is covered by a synovial membrane. It serves as an outside covering or protection.
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