How do you determine if a vector lies on a plane?

How do you determine if a vector lies on a plane?

To check, do the following: calculate the product: unit(A X B) X unit(V), where ‘X’ stands for vector multiplication, ‘unit’ returns a unit vector in the direction of its vector argument. If the product equals 1, then V is in the plane.

Is a point on a vector?

A Point has position in space. The only characteristic that distinguishes one point from another is its position. A Vector has both magnitude and direction, but no fixed position in space. Geometrically, we draw points as dots and vectors as line segments with arrows.

How do you find the slope of a vector equation?

Clearly the answer is that the slope is the dot product of the two vectors: slope = g · u. There are two ways to think of the slope of a linear function in a given direction. We can use a symbol, such as s, to represent distance in the given direction.

How do vectors make us sick?

Vector-borne diseases are illnesses that are transmitted by vectors, which include mosquitoes, ticks, and fleas. These vectors can carry infective pathogens such as viruses, bacteria , and protozoa , which can be transferred from one host (carrier) to another.

What viruses do mosquitoes carry?

Diseases that are spread to people by mosquitoes include Zika virus, West Nile virus, Chikungunya virus, dengue, and malaria.

Can humans be vectors of disease?

Many factors affect the incidence of vector-borne diseases. These factors include animals hosting the disease, vectors, and people. Humans can also be vectors for some diseases, such as Tobacco mosaic virus, physically transmitting the virus with their hands from plant to plant.

What are the 4 major disease vectors?

Disease vectors

• Malaria (protozoan): Anopheles species of mosquito.
• Lymphatic filariasis (nematode worm): Culex, Anopheles, Aedes species of mosquito.
• Dengue (virus): Aedes species of mosquito.
• Leishmaniasis (protozoan): mainly Phlebotomus species of sandfly.

What is a vector name a human disease spread by a vector?

Vector-Borne Disease: Disease that results from an infection transmitted to humans and other animals by blood-feeding anthropods, such as mosquitoes, ticks, and fleas. Examples of vector-borne diseases include Dengue fever, West Nile Virus, Lyme disease, and malaria. There are multitudes of zoonotic diseases.

What is a vector in case of viral diseases?

Vector-borne viral diseases (VBVDs) are defined viral diseases transmitted by vectors such as mosquitoes, ticks, lice, biting flies, and fleas. Some of VBVDs, such as Dengue fever, have long been present worldwide and some, such as West Nile meningoencephalitis, are re-emerging as global public health threats.

Is a mosquito a vector for malaria?

Malaria is transmitted to humans by female mosquitoes of the genus Anopheles. Female mosquitoes take blood meals for egg production, and these blood meals are the link between the human and the mosquito hosts in the parasite life cycle.

What are the four symptoms of malaria?

Symptoms of malaria include fever and flu-like illness, including shaking chills, headache, muscle aches, and tiredness. Nausea, vomiting, and diarrhea may also occur. Malaria may cause anemia and jaundice (yellow coloring of the skin and eyes) because of the loss of red blood cells.

What are the 5 types of malaria?

What Are the Different Types of Malaria Parasites?

• Plasmodium falciparum (or P. falciparum)
• Plasmodium malariae (or P. malariae)
• Plasmodium vivax (or P. vivax)
• Plasmodium ovale (or P. ovale)
• Plasmodium knowlesi (or P. knowlesi)

How many humans have died from malaria in history?

Over millennia, its victims have included Neolithic dwellers, early Chinese and Greeks, princes and paupers. In the 20th century alone, malaria claimed between 150 million and 300 million lives, accounting for 2 to 5 percent of all deaths (Carter and Mendis, 2002).

What is the biggest killer of humans in history?

The biggest killer diseases in history

• AIDS – 36 million.
• Cholera – 40 million.
• Influenza – 50 million.
• Plague – 240 million.
• Smallpox – 500 million.
• Tuberculosis – 1 billion.
• Malaria – 50 billion?

What has killed the most humans throughout history?

Cholera, bubonic plague, smallpox, and influenza are some of the most brutal killers in human history. And outbreaks of these diseases across international borders, are properly defined as pandemic, especially smallpox, which throughout history, has killed between 300-500 million people in its 12,000 year existence.

How many humans have there ever been?

An estimate on the “total number of people who have ever lived” as of 1995 was calculated by Haub (1995) at “about 105 billion births since the dawn of the human race” with a cut-off date at 50,000 BC (beginning of the Upper Paleolithic), and inclusion of a high infant mortality rate throughout pre-modern history.

What is the largest race in the world?

The world’s largest ethnic group is Han Chinese, with Mandarin being the world’s most spoken language in terms of native speakers. The world’s population is predominantly urban and suburban, and there has been significant migration toward cities and urban centres.

Where did the first person on earth come from?

Africa