Age structure diagrams show the distribution of people of various ages. The diagrams also show the number of people in the prereproductive, reproductive, and postreproductive years. Research and note what else you can infer from age structure diagrams.

Answers

Answer 1

Answer:

Age structure diagrams show the following.

The height of the graph indicates life expectancy.

The width of the base shows birth and fertility rate.

The slope of the pyramid-shaped diagram indicates death rate.

Bends in the graph indicate reductions in birth rate or increases in  

death rate.

The overall shape of the diagram indicates whether it is an economically developed country or not.

Explanation:

In a stable human population, the age structure diagram looks like a pyramid with a narrower base. The narrower base depicts that the birth rate is low. A stable human population also has a high number of older individuals. A greater number of older people in a population shows that quality of life is high in that area/country and the population has access to nutritional diet, medical care, and healthcare services. These features of the age pyramid in a stable population indicate a developed country. Age pyramids of underdeveloped countries have a wider base (high birth rate) and narrow tip.


Related Questions

the wolf population on isle royale fell to just twelve animals after the accidental introduction of canine parvovirus. years later scientists discovered that the skeletons of dead wolves had a high level of deformities in the pelvis and tail bones. how would you explain this finding

Answers

Answer:

Genetic drift caused fixation of deleterious alleles that impaired bone development.

Explanation:

With a low population, the effects of parvovirus will have a lasting impact on future generations as the alleles are less likely to be bred out of the population.


A scientist wants to test whether the pH, salinity, or temperature of seawater impacts coral
development. He sets up an experiment with three conditions:
Aquarium 1: Normal pH, normal salinity, normal temperature
Aquarium 2: High pH, high salinity, high temperature
Aquarium 3: Low pH, low salinity, low temperature
What factor would improve experimental design the most?

Eliminating Aquarium 1 since it only uses normal conditions

Testing one variable at a time and keeping the other two variables constant

Using one aquarium and changing the variables from day to day

Setting up the variables on a gradient in each aquarium

Answers

Answer: Testing one variable at a time and keeping the other two variables constant

1) Which of the following types of heterotrophs eat other animals?
A. omnivores
B. herbivores
C. carnivores

Answers

Answer:

A & C (Omnivores and Carnivores) eat other animals.

Answer:

A and c

Explanation:

heterotrophs eat other animals?

. omnivores and carnivores


Silus wants to monitor the temperature of a reaction every 0.5 seconds for 30 minutes. He plans to generate a graph
of the temperature values over t ime and insert the graph into a text document,

a. a liquid base thermometer and graphing calculator

b. a liquid base thermometer and computer

c. an electronic temperature probe and computer

d. an electronic temperature probe and graphing calculator

Answers

Answer:

C. an electronic temperature probe and a computer

Explanation:

The answer is C on Edge.   (VERIFIED Edge Answer)

Make sure to click "thanks" and rate this answer to let others know this is the correct answer for this question.  

Edge Tip: Answers do not mix or change.

The best pair of tools that Silus should use in this experiment is: c. an electronic temperature probe and computer.

What is a temperature probe?

A temperature probe can be defined as a scientific instrument (sensor) that is designed and developed for the measurement of the degree of coldness or hotness (temperature) of any physical object.

This ultimately implies that, an electronic temperature probe and a computer are the best pair of tools that Silus should use in this experiment, so as to generate a graph of the temperature values over time.

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Describe the type and ratio of organisms you would expect to find in a lake in a national park. give evidence to support your answer

Answers

Answer:

Algae would be the organism in greatest proportion in a lake in a national park.

Explanation:

A lake in a national park would have algae proliferation, which would be the largest organism in that lake. This is because a lake in a national park is subjected to great incidence of sunlight and large amounts of oxygen. This would facilitate and stimulate the reproduction of algae on a large scale, causing them to develop in the substrate, stones, pebbles, and in the water itself.

what is the application of genetics in medicine ​

Answers

Genetic applications in medicine can include studies of inheritance, mapping disease genes, diagnosis and treatment, and genetic counseling.

Which clue can be used to identify a chemical reaction as a combustion reaction? Oxygen is a product. A hydrocarbon reacts with oxygen. Water and carbon dioxide react. The reaction involves ions.

Answers

Answer:

A hydrocarbon reacts with oxygen

Explanation:

The clue that can be used to identify a chemical reaction as a combustion reaction from the options would be if a hydrocarbon reacts with oxygen.

Basically, a combustion reaction is a kind of reaction involving oxygen and another reactant with energy being released in the process. The energy is usually in the form of light and heat.

Thus, following the definition:

Oxygen is rather a reactant, and may not be a product in combustion reactionsWater reacting with carbon dioxide is not a combustion reactionReaction involving ions may not be a combustion reaction

The only reaction that may identify as a combustion reaction is, therefore, the one involving hydrocarbon and oxygen.

More on combustion reactions can be found here; https://brainly.com/question/12172040

hat type of cells do not undergo mitosis?

Answers

Answer:

Neurons, cardiac muscle, Red/white blood cells, skeletal muscle, smooth muscle, sperm cells, egg cells

Explanation:

At which stage of development does the embryo implant in the uterus?

Answers

Answer:

Blastocyst stage

Explanation:

A baby undergoes different stages of development before they become fully matured. It all begins with the process of fertilization which involves a sperm cell coming in contact with an egg.

After a successful fertilization, the fertilized egg travels down to the uterus where it undergoes series of cell division till it becomes a stack of arranged cells known as the blastocyst.

During the blastocyst stage, the embryo fastens itself to the edge of the uterus, this process is known as implantation.

Hence, the embryo implants in the uterus during the blastocyst stage.

You are running a marathon and observe that running increases your pulse rate. Using what you know about the scientific method complete the following:

1. Hypothesis: __________________________________________________________________

_____________________________________________________________________________

2. Independent variable: _________________________________________________________

3. Dependent variable: ___________________________________________________________

4. Controlled variables (at least 3): _________________________________________________

_______________________________________________________________________________

5. Control Treatment: ___________________________________________________________

6. Experimental Treatment: _______________________________________________

Answers

Answer:

hypothesis is A hypothesis (plural hypotheses) is a precise, testable statement of what the researcher(s) predict will be the outcome of the study.

Explanation:

independent variable is what u can change

dependent variable is the one u can measure

control variable is one u keep the same

control treatment In the design of experiments, treatments are applied to experimental units in a treatment group. In comparative experiments, members of a control group receive a standard treatment, a placebo, or no treatment at all. There may be more than one treatment group, more than one control group, or both

experimental treatment in research, the conditions applied to one or more groups that are expected to cause change in some outcome or dependent variable.

which two sentencens support the point that both cultures value children

Answers

Can you provide the sentence options?

I need some help! What cell structure goes to what definition? The structures as well as the descriptions are below.

lysosome


vesicle


nucleus


Golgi apparatus


chloroplast


smooth endoplasmic reticulum


nucleolus


rough endoplasmic reticulum


ribosome


mitochondrion

1.
contains chlorophyll, site of photosynthesis

2.
contains chromosomes, directs cell’s activities

3.
contains hydrolytic enzymes

4.
membranous network that detoxifies and helps synthesize lipids

5.
membranous network that helps synthesize proteins

6.
modifies and stores the products of the ER

7.
site of cellular respiration and ATP production

8.
site of protein synthesis

9.
site of ribosomal RNA synthesis

10.
small membrane-bound sac within a cell

Answers

Answer:

1-chloroplast

2-Golgi apparatus.

Explanation:

WHAT DO SCIENTIST DO WHEN THEY RUN AN EXPERIMENT

Answers

Scientists do a lot of things when conducting an experiment they either collect data, stays there hypothesis, do research, publish findings. Scientists do quite a lot when they do experiments but here are some examples of what they do in experiments which are listed at the top

Which observations did Darwin make?
Select the three correct statements.
Each individual frequently and continuously uses the necessary organs.
Heritable variations exist in each population.
All organisms share similar features.
Each species seems suited for its particular environment.
)
A population has more individuals than can be supported by the environment.
The population size suits the resources of the environment.

Answers

Answer:

Heritable variations exist in each population.

Each species seems suited for its particular environment.

A population has more individuals than can be supported by the environment.

Explanation:

Answer:

each species

A population has more

Heritable variations

Explanation:

One summer, the anthropologist returns to the site at the start of a new field season. He discovers that the same local residents who he hires in the summer have allowed their cattle to graze on the site over the winter while he was gone. The cattle have trampled some of the site and have permanently damaged the irreplaceable fossil materials. How should he proceed?

Answers

Answer:

The remaining part was not damage so the anthropologist can proceed his research.

Explanation:

The anthropologist should continue his work on the remaining part of the field for its study because the remaining part is not disturb by the animals, only little part of the field was damaged during grazing so the anthropologist can take his information from the remaining field and avoid taking data from the affected field due to damaged was done fossil materials and the fossil materials was not present in its original shape..

Why fatty acids need a protein transporter to move cross membrane?

Answers

Answer:

Transport of long-chain fatty ácids across the cell membrane has long been thought to occur by passive diffusion........Fatty ácids transporters hold promise as a future target to rectify lipid fluxes in the body and regain metabolic homeostasis.

What type of macromolecule is oil?

Answers

it’s lipids because they provide energy for living organisms, insulate body organs, and transport fat-soluble vitamins through the blood

hope this helped!!!

Why do cells have different shapes if most cells have the same organelles?

Answers

Answer:

cells have different shapes because they do different things

Explanation:

each cell type has has its own role to play in helping our bodies

to work properly

All of the following movements can occur across the intervertebral joints of the vertebral column except:______
a) extension.
b) lateral flexion.
c) flexion.
d) dorsiflexion.

Answers

Answer:

D) dorsiflexion

Explanation:

extension, lateral flexion, flexion can occur across intervertebral joints of the vertebral column. Dorsiflexion is the odd one out.

Dorsiflexion is the act of bringing the toes closer to the shin, it is also referred to as the backward bending of an individual's foot or hand. when someone is walking on the heels of their ankle, their ankle can be described to be in dorsiflexion. therefore option d answers the question.

Marine crustaceans that are sessile, secrete calcareous plates and filter-feed are:_____.
a. ostracods.
b. barnacles.
c. copepods.
d. decapods.
e. isopods.

Answers

Answer:

B. Barnacles

Explanation:

Marine crustaceans that are sessile, secrete calcareous plates and filter-feed are Barnacles. Barnacles are the only sessile crustaceans known in the world.

They are characteristic to marine environments and they are usually found in shallow environments. They are edible due to their relationship with crustaceans such as shrimps etc




In our neighborhoods we have garbage people that come around and

collect garbage and waste at you home. What does that inside of the cell.

Answers

Answer:

The answer is lysosomes

Explanation:

Lysosomes are membrane bound organelles that contain degradative/digestive enzymes which are used to digest/degrade/break down unwanted or worn out cellular organelles through a process known as autophagy.

The reason the answer is lysosomes is because the waste (unwanted or worn out organelles) use to be a useful part of the home (cell), however, there is another organelle responsible for absorbing and neutralizing toxins in the cell; it's called peroxisomes

How is it possible that all animal life depends on the chloroplast for energy

Answers

chloroplast contains chlorphyll . Chlorophyll is used in photosynthesis to produce glucose . (photosynthesis is a process where green plants manufacture simple sugar (glucose) from carbondioxide and water by using sunlight ) 6co2+6h2o=c6h12o6+6o2

if theres no chloroplast no glucose will be produced so animals will have no energy. chloroplast must be present in order of photosynthesis to take place and produce glucose , when plants produce glucose animals get the energy needed by feeding on plants (in simple words animals eat the sugar that plants have produced )

*
4. What are the only prokaryotes?

Answers

Answer:

Bacteria is the only prokaryotes.

Some cynobacteria are also included in prokaryotes.

Bacteria is mainly the only one

the membranous compartmentalization of a cell

Answers

Answer:

organelles in eukaryotic cells live and work in separate areas within the cell in order to perform their specific functions more efficiently.

Explanation:

i hope this is right :)

Answer: allows different chemical conditions to be maintained in different parts of the cell

Explanation:

Which statement explains how determining the age of the remains of living things is similar to dating rocks

Answers

Answer:

it is choice a.............................

Explanation:

on test

Answer:

A

Explanation:

In red shift the wavelengths of light become ?

Answers

What subject is hypos? *this

What is the mean height of the plants given fertilizer?

Answers

Answer:

a. 33.5

Explanation:

You find the mean of something by adding all the values and dividing by the number of values you added. In this case I added five values so I divide the total number when adding the values by five.

Answer:

a

Explanation:

33.5

Why is the earth's gravity stronger than the moon's gravity? A:The moon is so far away from earth. B:The earth is more massive than the moon C:The moon has no mass. D:The earth has a larger volume than the moon.

Answers

Answer:

A and B

Explanation:

Gravity relies on both mass and distance

The reason the earth's gravity stronger than the moon's gravity is B. The earth is more massive than the moon

How is the earth gravity stronger ?

Gravity is a force that attracts two objects with mass towards each other. The more mass an object has, the stronger its gravitational pull.

The distance between two objects also affects the strength of gravity. However, the distance between the Earth and the Moon is not large enough to significantly weaken the Earth's gravitational pull.

The Earth has a mass of about 5.972 × 10^24 kilograms, while the Moon has a mass of about 7.347 × 10^22 kilograms. This means that the Earth's gravity is about 6 times stronger than the Moon's gravity.

Find out more on Earth gravity at https://brainly.com/question/72250

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PLEASE HELP I NEED THIS ASAP!!!!!!!!!!!!!!!!!!!!!!A leaf's stomata____. A. contain chlorophyll B. protect the leaf from physical damage C. open and close to control evaporation D. are part of the spongy layer​

Answers

Answer:

C. open and close to control evaporation

What is in the center of every atom?

Answers

Answer:

The Nucleus, comprised of Protons and Neutrons.

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