Answers
Answer:
The age structure is a population pyramid which depicts the population of a country and what is the age of the average population of a country.It can be depicted with the help of pyramid. A population pyramid, also called an age pyramid or age picture diagram, is a graphical illustration that shows the distribution of various age groups in a population, which forms the shape of a pyramid when the population is growing.
hope this helped x
Explanation:
Related Questions
Which level of organization is shown in the image? Cell. Tissue. Organ. Organ system. "Cobblestones" is not an option.
Answers
This is adipose tissue.-----tissue level
Lows or low-pressure areas bring fair weather. Highs or high-pressure areas bring
wet weather, high humidity, or both.
True
False
Answers
Answer:
The answer is false have a great day! :D
Low- or low-pressure areas bring fair weather; high- or high-pressure areas bring wet weather, high humidity, or both, and this is a false statement. The low-pressure area is generally unstable and causes the change in weather.
What exactly is low pressure?The low pressure area is formed when the air is lightweight; this can occur in a variety of ways, including at high temperatures, and as a result, air from higher pressure regions flows to the low pressure area, causing disturbances such as the formation of more cloudy and humid weather.
Hence, lows or low-pressure areas bring fair weather, highs or high-pressure areas bring wet weather, high humidity, or both, and this is a false statement. The low-pressure area is generally unstable and causes the change in weather.
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A doctor prescribed Patient X the antibiotic tetracycline to treat an infection involving the bacteria Streptococcus agalactiae. The antibiotic worked, and Patient X regained his health. Several weeks later, Patient K, a family member of Patient X, took tetracycline to treat an infection involving the same bacteria. This time the antibiotic did not work, and Patient K had to seek out another treatment.What statement best explains why tetracycline did not effectively treat Patient K's S. agalactiae infection?A. The generation of S. agalactiae responsible for the first infection were smaller in number and comprised of older and weaker bacteria.B. The generation of S. agalactiae responsible for the second infection descended from bacteria that were selected for their resistance to tetracycline.C. Patient K waited too long to begin treatment, so the bacterial infection had progressed to the point that it was untreatable with an antibiotic.D. Patient K had a rare genetic condition, which causes tetracycline to be ineffective in treating bacterial infections.
Answers
Even if the generation of bacteria was smaller, older or if the infection was going on for a long time, the antibiotics should be able to treat both infections, as its action does not depend on the amount or age of the bacteria. Therefore, A and C are both incorrect.
Rare genetic conditions usually appears in other members of the family as well. And there is no indication of the genetic condition. So D is wrong too.
The most reasonable explanation would be that the bacteria developed the ability to kill the drugs designed to kill them. As they are from the same family, it is possible that K was infected with the offspring of the bacterias in X. Therefore, the correct answer is B. The generation of S. agalactiae responsible for the second infection descended from bacteria that were selected for their resistance to tetracycline.
3. List any names of viruses that you are aware of. Try for four or more.
Answers
Many common illnesses and diseases are caused by viruses, some examples are:
-Acquired immunodeficiency syndrome (AIDS), caused by the human immunodeficiency virus (HIV)
-Common cold
-Influenza
-SARS
-COVID-19
-Smallpox
-Human papilloma virus
how can unsupported hypothesis be valuable? A. it can lead to another investigation that produces valid results. B. it can show that the investigation had invalid results. C. it can prove that the orignal question was not scientific. D. it can determine which scientists should choose another career.
Answers
Answer:
A. It can lead to another investigation that produces valid results.
Explanation:
Every research begins with a hypothesis - an idea or assumption that could explain the phenomenon someone is researching. As the research progresses, the hypothesis may change. The results of the research will or will not support the hypothesis.
One may think that an unsupported hypothesis is useless. However, we often learn something from failures, which may end up leading us towards the correct answer. When the initial hypothesis is unsupported, the researcher can make another one and test it. This means that an unsupported hypothesis can lead to another investigation that produces valid results.
This is why option A is the correct one.
An unsupported hypothesis can be valuable because it can lead to another investigation that produces valid results (Option A).
A hypothesis is a given explanation about some question of the natural world.This explanation (hypothesis) must be testable in order to be confirmed or rejected.The hypothesis is tested by using the scientific method (i.e., by experimentation and/or observational procedures).In conclusion, an unsupported hypothesis can be valuable because it can lead to another investigation that produces valid results (Option A).
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During inhalation, a person s diaphragm and intercostal muscles contract, expanding the chest cavity and lowering the internal air pressure below ambient so that air flows in through the mouth and nose to the lungs. Suppose a person s lungs hold 1250 mL of air at a pressure of 1 atm. If the person expands the chest cavity by 525 mL while keeping the nose and mouth closed so that no air is inhaled, what will be the air pressure in the lungs in atm? Assume the air temperature remains constant.
Answers
The air pressure in the lungs after expanding the chest cavity by 525 mL will be 0.009 atm.
The air pressure in the lungs can be calculated using the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature.If the person's lungs hold 1250 mL of air at a pressure of 1 atm and the person expands the chest cavity by 525 mL while keeping the nose and mouth closed so that no air is inhaled, the new volume of the lungs will be 1250 mL + 525 mL = 1775 mL. Now we can use the ideal gas law to find out the new pressure inside the lungs:
P = (nRT) / V
Where R= 0.0821 Latm/molK
T = 298 K (room temperature)
V = 1775 mL
n is not needed as the number of moles is not given, so we can cancel it out from the equation.
P = (0.0821 * 298) / 1775
P= 0.009 atm
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The air pressure in the lungs after expanding the chest cavity by 525 mL will be 0.009 atm.
The air pressure in the lungs can be calculated using the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature.
If the person's lungs hold 1250 mL of air at a pressure of 1 atm and the person expands the chest cavity by 525 mL while keeping the nose and mouth closed so that no air is inhaled, the new volume of the lungs will be 1250 mL + 525 mL = 1775 mL.
Now we can use the ideal gas law to find out the new pressure inside the lungs:
P = (nRT) / V
Where R= 0.0821 Latm/molK
T = 298 K (room temperature)
V = 1775 mL
n is not needed as the number of moles is not given, so we can cancel it out from the equation.
P = (0.0821 * 298) / 1775
P= 0.009 atm
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James measured the humidity of the air in his back yard each morning for four days. His data is recorded below.
Day Humidity
1.
52%
II.
46%
75%
98%
On which day did it most likely rain?
OA. Day I
OB. Day II
OC. Day III
OD. Day IV
III.
IV.
Answers
According to the given data It most likely rain on Day 4 98%.
The correct option is D.
Briefing:The relative humidity is typically between 90 and 99 percent when it is raining, but it is rarely greater than 100 percent. Rain happens when water droplets get too large to be maintained in the atmosphere and fall to the ground. Clouds are created when invisible water vapor gas condenses to visible water droplets.
Why is humidity more on rainy days?The water vapour content controls the amount of rainfall during extremely strong downpours, in which all of the water in the atmosphere is frequently soaked out. We are more likely to experience rain when the humidity is higher because water vapor expands at a faster rate.
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The complete question is -
James measured the humidity of the air in his back
yard each morning for four days. His data is
recorded below.
Daily Humidity Chart:
Day 1 52%
Day 2 46%
Day 3 75%
Day 4 98%
On which day did it most likely rain?
A. 1
B. 2
C. 3
D. 4
I Need Help Please!!!!
Answers
It didn't let me type my answer. Hope this helps!
21. All the following are differences between arteries and veins
except
arteries are thick and veins are thin
O arteries do not have valves and veins have valves
arteries connect to capillaries and veins do not connect to capillaries
arteries carry blood away from the heart and veins carry blood back to the heart
22. All the following are the 3 major parts of the cardiovascular system
VA
Answers
Answer:
Arteries connect to capillaries and veins don't connect to capillaries
Explanation:
Actually both are connected by capillaries
Patrick is a 16 year old boy whose body has stopped producing osteoclasts. What does this mean for his bones? What other parts of his body will be affected by this?
Answers
This means for his bones that his bones will become weak and brittle. Other parts of his body like the hip, wrist, and spine will be affected by this.
Osteoclasts weaken brittle bones, making them prone to breaking from even minor stresses like coughing or stooping. The most frequent locations for fractures caused by osteoclasts are the hip, wrist, or spine. Bone is a living tissue that constantly degrades and is replaced.
By increasing their resorptive activity and destroying bone to initiate normal bone repair, the cells known as osteoclasts mediate bone loss in pathologic circumstances. They develop from progenitors of the myeloid/monocyte lineage that circulate in the bloodstream after maturing in the bone marrow.
Osteoblasts create bone; osteocytes mature it, and osteoclasts degrade and reabsorb it.
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There were twelve elephants in the clearing.
a pulse rate of 141 beats per minute
orange fur with black stripes
✔
DONE
Answers
Answer:
There were twelve elephants in the clearing.
✔ quantitative data
a pulse rate of 141 beats per minute
✔ quantitative data
orange fur with black stripes
✔ qualitative data
Explanation: trust
Refer below to understand which data is qualitative or quantitative from the given example:
twelve elephants in the clearing: quantitative data since it gives us the number of elephants in the clearing. a pulse rate of 141 beats per minute: quantitative data since, it speaks about the average heart rate of the elephants and is measurable. orange fur with black stripes: qualitative data since it is not giving us a number rather the quality or type of fur. 28.5 cm tall: quantitative data since it gives us a measure of height.rough-textured: qualitative data since it is not giving us an idea about the quality or texture.bird bobbed its head up and down: qualitative data since it is talking about the activity of the bird.Learn more about qualitative and quantitative data here:
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Explain how to estimate a population using random sampling
Answers
How to Estimate a Population Total from a Simple Random Sample
1. This lesson describes how to estimate a population total, given survey data from a simple random sample. ...
2. Sample mean = x = Σx / n.
3. Population total = t = Nx.
4. where N is the number of observations in the population, and x is the sample mean.
A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen. ... In this case, the population is all 250 employees, and the sample is random because each employee has an equal chance of being chosen.
Random sampling is a part of the sampling technique in which each sample has an equal probability of being chosen. A sample chosen randomly is meant to be an unbiased representation of the total population.
The temperature in Delhi falls to even 5°C in winter and may go up to 45°C
during summer but our body temperature remains at 37°C. How do we make it
possible?
Answers
The way we make it possible is that The human body is able to maintain a constant internal temperature, known as homeostasis, through a number of physiological mechanisms. One of the main ways the body regulates its temperature is through the process of thermoregulation.
What is body temperature about?The hypothalamus, a small region in the brain, acts as the body's thermostat. It continually monitors the body's temperature and sends signals to other parts of the body to make adjustments as needed.
When the body is too warm, the hypothalamus sends signals to the sweat glands to release sweat, which cools the body as it evaporates. It also sends signals to the blood vessels in the skin to dilate, allowing more blood to flow near the surface of the skin, which also helps to dissipate heat.
Thus, When the body is too cold, the hypothalamus sends signals to the muscles to contract, generating heat through the process of muscle metabolism. It also sends signals to the blood vessels in the skin to constrict, reducing blood flow near the surface of the skin and conserving heat.
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Which factor is most important for photosynthesis to occur in plants?
O A. soil pH
O B. air temperature
o C. amount of sunlight
D. water temperature
Answers
Answer:
c amount of sunlight
Explanation:
hope its right
Answer:
Explanation:
D
ILL MARK BRAINLIEST
Which statement describes Earth?
It is an outer planet.
It is a gaseous planet.
It was formed from gas and dust.
It has a thick atmosphere of hydrogen and helium.
Answers
Answer:
the answer is D
Explanation:
:) sorry im a bit late
A car starts from rest and gains a velocity of 20 m/s in 10 s. Calculate acceleration and average velocity.
Answers
The acceleration of the car is 2 m/s².
The average velocity of the car is 2 m/s.
How to calculate acceleration ?The equation acceleration = (final velocity - beginning velocity) / time can be used.
Given:
Initial velocity (u) = 0 m/s (since the car starts from rest)
Final velocity (v) = 20 m/s
Time (t) = 10 s
Using the formula, we can substitute the values:
acceleration = (20 m/s - 0 m/s) / 10 s
acceleration = 20 m/s / 10 s
acceleration = 2 m/s²
Therefore, the acceleration of the car is 2 m/s².
You can use the following equation to determine the average velocity: average velocity = total displacement / total time.
The initial position and the final position are identical since the automobile begins at rest. As a result, the displacement and the ultimate position are equal.
Given:
Displacement = 20 m
Time (t) = 10 s
Using the formula, we can substitute the values:
average velocity = 20 m / 10 s
average velocity = 2 m/s
Therefore, the average velocity of the car is 2 m/s.
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describe the cell membrane, cell wall, nucleus, and cytoplasm. which of these structures are you likely to find in a prokaryotic cell? eukaryotic cell? plant cell? animal cell?
12 points! please answer asap!
Answers
Answer:
you can see below
Explanation:
Basic Definitions:
Cell Membrane = the semi-permeable structure that surrounds the cell and keeps all of the cells organelles from exploding everywhere.
Cell Wall = the rigid 'armor' of the cell that surrounds it after the membrane. Usually made up of cellulose and ONLY found in plant cells.
Nucleus = A really dense organelle of the cell usually surrounded by two membranes. They contain and protect your genetic material. Basically everything that makes you, you.
Cytoplasm = The watery, salty, and protein filled 'soup' that fills the cell. All organelles float happily in this.
Now Specific Locations:
Eukaryotic cells
have plasma membranes
please mark me brainliest or mark me thanks at leat
only have cell walls if the cells are plants.
They do have a nucleus.
They have cytoplasm
Prokaryotic cells
have plasma membranes
cell walls are usually chemically complexed.
don't have a nucleus
have cytoplasm
Animal cells
only have the plasma membranes.
No cell wall
have a nucleus
have cytoplasm
Plant cells
have both the cell wall
and have a plasma membrane
have a nucleus
have cytoplasm
help me please! this is timed
Answers
Which term refers to the way light interacts with the surface of a rock or mineral?
A. density
B. luster
C. cleavage
d. hardness
Answers
Answer:
Luster
Explanation:
No explanation that is just the answer
This data set was created from examining several ice cores drilled at Antarctica's Vostok Station in 2001. Examine the data and write about one correlation that you see. What does the correlation tell you about Earth’s historic atmosphere or climate? (ybp = years before present, ppb = parts per billion, and ppm = parts per million)
Depth (m) Age (ybp) Methane (ppb) Carbon Dioxide (ppm) Temperature Change from Current (°C)
355.765 9169 664.7 263 0.48
362.915 9397 673.7 265.7 0.57
374.57 9761 676.3 267.6 0.64
381.715 9985 678 265.3 0.9
389.97 10248 688 264 1.08
399.215 10548 666 253.9 0.675
407.43 10820 703 245.3 0.28
415.27 11084 664.7 237.5 -0.115
427.27 11513 467.7 238.3 -0.74
434.52 11817 462.3 237.6 -0.805
445.965 12368 627 238.6 -0.51
453.77 12766 661.7 228.5 -0.475
463.565 13249 618.7 225.2 -0.82
469.72 13551 611.7 221 -1.04
484.02 14226 461 214 -1.19
491.72 14622 475.7 202.9 -1.69
501.515 15163 456 193.9 -2.28
509.18 15633 418.7 188.5 -2.235
519.84 16369 394.8 188.6 -2.16
531.18 17305 366.3 188.3 -1.92
539.465 18068 371 190 -1.82
550.465 19100 377 195 -2.35
557.72 19779 375.3 186.5 -2.89
569.68 20891 353.7 185.7 -3.13
Answers
Answer:
There is a positive correlation between the changes in greenhouse gas concentration (methane and carbon dioxide) and temperature. As the concentration of greenhouse gases increases, the temperature increases. As they decrease in concentration the temperature decreases.
Explanation:
sample answer
Some people's earlobes dangle or flap unattached, while others don't. This trait is genetically determined. Use the genetics simulation to explore the genes that determine whether earlobes are attached or unattached. One trait is dominant and the other is recessive. See what happens when you cross parents with different genetic combinations. Follow the specific instructions for each trial.
Answers
Complete question, Answer, and Explanation:
Due to technical problems, you will find the complete question, answer, and explanation in the attached files
Why do organisms compete for food and water?
Answers
Answer:
Organisms compete for the resources they need to survive- air, water, food, and space. In areas where these are sufficient, organisms live in comfortable co-existence, and in areas where resources are abundant, the ecosystem boasts high species richness (diversity).
Explanation:
Complete this sentence: About as much as 90 percent of energy is ________ at every trophic level, due to metabolic processes.
- received
- lost
- destroyed
- recycled
Answers
Answer:
lost
Explanation:
Energy is lost at each trophic level
Answer: Its Lost!!
Explanation: I GOT IT RIGHT ON THE TEST WOOOOOOOOO
ORGANISM A single, self-contained, living thing
Answers
Hope this helps?
A
В
с
Which container has the least concentration of solutes?
O A
OB
О с
OD
Answers
Answer:
c
Explanation:
its c i took the test
A Conversation between characters in a story
Answers
It's "Dialogue"
have a good day!
which of the following is not a human activity that speeds up erosion?
A)
rains
B)
farming
C)
urban development
D)
grazing
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
I believe that A is the answer
How does the function of this biomolecule compare to the function of a lipid?(answer choices in the photo.)
Answers
We can see from the diagram that we are comprised of a deoxyribose sugar base and phosphate groups. We can also spot that there are nitrogenous bases present as well, specifically Adenine and Thymine.
Recall that DNA is comprised of a deoxyribose sugar and nitrogen bases Adenine, Thymine, Cytosine, and Guanine.
Since the diagram has both of these present, we can say that this biomolecule is DNA. If this biomolecule is DNA, then it has to be the holder of the blueprints of the cell. Recall also that DNA holds the genetic material of a cell.
Therefore, our best bet is answer choice B.
Question 1/4
According to the Big Bang theory, what happens if you reverse the galaxy motion and go back in time?
A. Everything would become condensed into one dense point
B. Some things would remain the same, while others go back
C. Everything would be the same as it is today.
D. You would find everything in a large cloud of cold isolated gas
Answers
According to the Big Bang theory, if you reverse the galaxy motion and go back in time A. Everything would become condensed into one dense point.
The Big Bang Theory simply explains how the universe was formed from a large explosion. According to the Big Bang theory, the universe was formed as a result of the explosion of particles.
The reverse of the Big Bang Theory simply means the scenario where the expansion of the universe reverses. This is also called the Big Crunch. This will lead to the recollapse of the universe.
In this case, the cosmic scale also reaches zero. Then, everything would become condensed into one dense point.
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How to stop Direct Harvesting
Answers
Direct harvesting can be stopped by making stringent laws and follow them, by maintaining the biosphere reserves and also harvest species in a limited number in an environment.
What is direct harvesting?
Direct harvesting can be referred to take a species out of it's natural environment. We need to directly harvest various organisms for resources that support our population growth and maintenance. However, direct harvesting such as overfishing and the use of drift nets has threatened the aquatic biodiversity on a large scale. Likewise, we have also hunted and poached endangered animals to the point of near extinction.
Direct harvesting can be stopped by controlling fishing by making strict laws and apply them. We can also restrict the entry of people in the areas where large population of animals are present as reserve areas.
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