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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.

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Which characteristics make golden eagles successful hunters? (Select all that apply.)
Novay_Z [31]

The characteristics that makes golden eagles successful hunters is their good eyesight and their large wingspans.

<h3>The characteristics of a golden eagle:</h3>

The golden eagle is one of the most widespread eagle in the world.

That is because they are able to adapt in almost every type of climate, especially open areas with vegetation.

Some of the characteristics that makes them successful hunters is the good eyesight and large wingspans they possess.

Taking the vision of human beings for example, what looks sharp and clear to us at 5 feet is just as clear to a golden eagle from 20 feet away.

Also, their large wingspans helps then fly long distance in search of preys.

Therefore, the characteristics that makes golden eagles successful hunters is their good eyesight and their large wingspans.

Learn more about eagles here:

brainly.com/question/2565511

8 0
2 years ago
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Which two of the following choices are examples of commons?
xz_007 [3.2K]

Answer:

B. National parks

E. Groundwater

Explanation:

5 0
3 years ago
What is the process which scientists grade the work of other scientist before published?
Finger [1]
The process is called Peer-Reviewing. In Peer-Reviewing, scientists/academic peers "peer review" the work of a scientist to check for accuracy or any false information that might reduce the legitimacy of their study or change "how realistic/real" their study is.

p.s. This is also common sense because scientists make up an entire scientific community who base their scientific studies on consistency and accuracy. 

3 0
3 years ago
The sawing and grinding action of rock fragments in the water is called what?
PIT_PIT [208]
That thing is called abrasion.
8 0
3 years ago
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What is the Molecular mechanism of DNA replication?
kolezko [41]

Answer:

DNA replication a process of copying of a cell's DNA.  DNA replication is semiconservative process which means that each strand in the double helix helps in the synthesis of new, complementary strand and conserve the parent template.

The Molecular mechanism of DNA replication is as following:

  1. The double starnded DN in binded with hydrogen bond, the enzyme helicase opens up the DNA at the replication fork.
  2. A single stranded binding protein prevent the rewinding of DNA and so binds to the DNA around the replication fork
  3. Topoisomerase prevent supercoiling at replication fork.
  4. The ezymes primase come in action and produces RNA primers which are complementary to the DNA strand.
  5. DNA polymerase III help to extends the primers and allow them to add  to the 3' end, to make new DNA.
  6. DNA Polymerase then remove RNA primers and replace with DNA.
  7. DNA ligase blocks the the gaps between DNA fragments.

So, this is the molecuar mechanism of DNA replication.

7 0
3 years ago
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