1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pantera1 [17]
3 years ago
5

What is the trend of human population growth?

Biology
1 answer:
swat323 years ago
6 0

Answer:

Global human population growth is around 75 million annually, or 1.1% per year. The global population has grown from 1 billion in 1800 to 7 billion in 2012.

Explanation:

he “population growth rate” is the rate at which the number of individuals in a population increases in a given time period as a fraction of the initial population. Specifically, population growth rate refers to the change in population over a time period, often expressed as a percentage of the number of individuals in the population at the beginning of that period. This can be written as the formula:

population

 

growth

 

rate

Globally, the growth rate of the human population has been declining since 1962 and 1963, when it was 2.20% per annum. In 2009, the estimated annual growth rate was 1.1%. The CIA World Factbook gives the world annual birthrate, mortality rate, and growth rate as 1.89%, 0.79%, and 1.096% respectively. The last 100 years have seen a rapid increase in population due to medical advances and massive increase in agricultural productivity.

You might be interested in
Which cell type divides fastest? (in order)
BlackZzzverrR [31]

Answer:

A. Skin cells

Explanation:

4 0
2 years ago
what is the force needed to move a boy and his wheelchair with a combined mass of 30kg at 0.4 meters per square second
vichka [17]

Answer:

The force needed to move a boy and his wheelchair with a combined mass of 30kg at 0.4 meters per square second is 12 newton.

Explanation:

  • According to Newton's second law based motion "the moving object's acceleration is based upon two terms - one is the total force acting upon that object and the other one is the net mass of the object."
  • In mathematical term, F=ma. where F= force, m= mass, a= acceleration.
  • So, by performing the calculation, \bold{\mathrm{F}=30 \times 0.4 \mathrm{N}=12 \mathrm{N}}
  • 12N force will move the boy along with the wheel chair.
8 0
3 years ago
What is an example of hierarchy representation of information
enyata [817]

Answer:

What is hierarchy? A hierarchy is a way of organizing things that goes from high to low. It can be used to refer to a wide number of systems, organizations and even physical objects that represent a hierarchical structure. Keep reading for hierarchy examples that you see every day.

Everyday Hierarchy Examples

Hierarchy systems rank categories from top to bottom. For example, in a typical family system, the parents have the most authority, followed by the children, then followed by the pets. Take a look around you; you may find more hierarchy examples than you think!

The human body itself is a hierarchy. We are made up of systems of organs, which are made up of individual organs. Those organs are composed of tissues, then cells, then organelles. The final category of a human body hierarchy are the atoms that make up the organelles.

Political systems are hierarchies. In America, the hierarchy starts at the top with the president, and then the vice president, then the speaker of the house, then the president of the Senate, followed by the secretary of state.

Your family tree is a hierarchy starting back with your first ancestors. Their children had children, then those children had children, and so on until your family produced you. You are the child of two distinct genetic parents, and your children will be the next category of this hierarchy.

Human needs are often represented as a hierarchy (such as in Abraham Maslow's Hierarchy of Needs). The most important are your physical needs, such as eating, drinking and sleeping, followed by security. After that is a sense of love and belonging, then confidence and esteem, and finally, self-actualization — the stuff that makes you who you are like creativity, values, acceptance of facts.

The military is a hierarchy. At the very top of the Army, for example, is the authority of the general, followed by the lieutenant-general, followed by the brigadier general, then general, colonel, lieutenant colonel, major, captain, first lieutenant, second lieutenant, master sergeant, sergeant, corporal, then private.

More Examples of Hierarchy Systems

Take a look at even more hierarchy examples that you may already know and use. You'll find that much of science and geography depends on hierarchies as well!

The classification of living things is developed as a hierarchy. Kingdom, phylum, class, order, family, genus, and finally species are the levels of organization in the field, which is known as taxonomy.

Babushka dolls, also known as matryoshka dolls or Russian nesting dolls, are a Russian toy in one large doll holds a smaller doll. That smaller doll holds an even smaller doll, which holds an even smaller doll, and so on. This is known as a nested hierarchy and is used to describe things other than matryoshkas.

Every postal address in our country is a hierarchy with the highest level being the country itself — the United States. After that, the postal address is listed by state, city, street, building, and sometimes the apartment or room number.

Similarly, our political boundaries are hierarchies. It begins with the federal government, then the state government, then city, town, and then borough or municipality, depending on the location.

The workplace is typically a hierarchy. The titles begin with CEO and then descend down the executive ladder to the COO, then to a president, a vice president, a manager, an assistant manager, and then individual employees.

Churches are often hierarchical systems. For example, the Anglican Church has the monarch at the top, followed by the archbishop of canterbury, then the archbishop of york, then the bishops, followed by deaneries, and finally a vicar.

Poker hands are often grouped in hierarchies, with the royal flush as the most valuable hand. It is followed by the straight flush, the 4 of a kind, the full house, the flush, the straight, the 4 of a kind, the 3 of a kind, the 2 pairs, 1 pair, and finally a high card.

Advertisement

Hierarchies Organize Our World

Now you have seen many different hierarchy examples and structures that are classified as hierarchies. These examples should help you to better understand what hierarchy is and how hierarchies work. For more information on organizing concepts, take a look at different

Explanation:

7 0
2 years ago
Which statement best explains how lysosomes contribute to the cycling of nutrients through a cell?
Volgvan

Answer:

C. They break down food materials into forms the cell can use.

5 0
3 years ago
Does anyone know how to do this?
lesya692 [45]
I’m sorry I don’t understand that at al
3 0
3 years ago
Other questions:
  • What time of day does cellular respiration occur?
    6·1 answer
  • 3. (3 points) Label each example as either (PI) passive or (AI) active immunity:
    12·1 answer
  • Earth has a feedback mechanism that works between the surface of the Earth and its atmosphere. Which of the statements is not co
    9·1 answer
  • Plants need to perform the processes of photosynthesis and cellular respiration. Label the model to show these processes.
    12·2 answers
  • A rare find of carbon containing soft tissue (biological tissue, such as proteins) in a t-rex dinosaur fossil bone that is thoug
    14·1 answer
  • Choose the BEST definition of Osmosis
    6·1 answer
  • What shape is the moon's orbit around Earth? (1 po.
    5·2 answers
  • Which of the following is NOT common to both mitosis and meiosis?
    12·1 answer
  • Organisms which "hold an ecosystem together" because they have a significant role to play are called
    7·1 answer
  • What type is anomer?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!