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Fynjy0 [20]
2 years ago
6

What are the FOUR major components of biodiversity (biological diversity)?

Biology
1 answer:
dimaraw [331]2 years ago
8 0

Four major components of biodiversity are:

1. Genetic diversity - refers to the genetic variation that occurs among members of the same species.

2. Species diversity - (taxonomic diversity) refers to the variety of species or other taxonomic groups in an ecosystem

3. Ecosystem diversity - refers to the variety of biological communities found on earth. With ecosystem diversity, its two levels are generally considered, which are communities and ecosystems.

4. Functional diversity - refers to the variety of biological processes, function or characteristics of a particular ecosystem. 

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Identify three similarities and three differences comparing the tundra to the following enviroments: the marine, freshwater and
Alex_Xolod [135]
Arctic Tundra

The Arctic tundra is a cold, vast, treeless area of low, swampy plains in the far north around the Arctic Ocean. It includes the northern lands of Europe (Lapland and Scandinavia), Asia (Siberia), and North America (Alaska and Canada), as well as most of Greenland. Another type of tundra is the alpine tundra, which is a biome that exists at the tops of high mountains.

Special features:

This is the earth's coldest biome. Since the sun does not rise for nearly six months of the year, it is not unusual for the temperature to be below -30°F in winter. The earth of the Arctic tundra has a permanently frozen subsoil, called permafrost, which makes it impossible for trees to grow. Frozen prehistoric animal remains have been found preserved in the permafrost.

In summer, a thin layer of topsoil thaws and creates many pools, lakes, and marshes, a haven for mosquitoes, midges, and blackflies. More than 100 species of migrant birds are attracted by the insect food and the safe feeding ground of the tundra. Other animals that live in this biome include polar bears, Arctic foxes, caribou, and grey wolves. Plants that you might find include small shrubs and cushion plants, and the lichen which cover the many rocks on the tundra's terrain. The Arctic is also famous for the beauty of its flowers during early autumn.

Coniferous Forest

The coniferous forest biome is south of the Arctic tundra. It stretches from Alaska straight across North America to the Atlantic Ocean and across Eurasia. The largest stretch of coniferous forest in the world, circling the earth in the Northern Hemisphere, is called the “taiga.” It supplies the bulk of the world's commercial softwood timber, which is used to make paper.


Deciduous Forest

This biome is in the mild temperate zone of the Northern Hemisphere. Major regions are found in eastern North America, Europe, and eastern Asia.


Desert

A desert is an area where little or no life exists because of a lack of water. Scientists estimate that about one-fifth of the earth's land surface is desert. Deserts can be found on every continent except Europe. There are two different kinds: hot and dry (such as the Arabian and Sahara deserts) and cold and dry (such as Antarctica and the Gobi desert).

In North America, there are four major deserts: the Great Basin, the Mojave, the Sonoran, and the Chihuahuan. All but the Great Basin are hot deserts located in Mexico and the southwestern part of the United States. The Great Basin covers parts of Idaho, Nevada, Oregon, and Utah, and is considered a cold desert.


Grasslands

Grasslands are places with hot, dry climates that are perfect for growing food. They are known throughout the world by different names. In the U.S. they are called prairies and extend from the Midwest to the Rocky Mountains. In South Africa, grasslands are called the veld. Hot, tropical grasslands called <span>savannas </span>are found in South America and Africa. In Eurasia, temperate zone grasslands are called steppes; in South America, pampas.

Special features:

This inland biome is made of vast areas of grassy field. It receives so little rain that very few trees can grow. The U.S. prairies are used to graze cattle and to raise cereal crops. There is little variety of animal life. Some original prairie animals like the wolf and bison have come close to being eliminated from the habitat by hunters. Today, some of the most common grassland animals include the prairie dog and the mule deer in North America, the giraffe and the zebra in Africa, and the lion in Africa and Asia.

Mountains

Mountains exist on all the continents of the earth. Many of the world's mountains lie in two great belts. The Circum-Pacific chain, often called the Ring of Fire, runs from the west coast of the Americas through New Zealand and Australia and up through the Philippines to Japan. The other major belt, called the Alpine-Himalayan, or Tethyan, system, stretches from the Pyrenees in Spain and France through the Alps and on to the Himalayas before ending in Indonesia.


The animals of this biome have adapted to the cold, the lack of oxygen, and the rugged landscape. They include the mountain goat, ibex (wild goat), sheep, mountain lion, puma, and yak. All of them are excellent climbers, which means they can move freely in the steep, rocky landscape. Types of plants vary depending on geographic location and altitude. Lower elevations are commonly covered by forests, while very high elevations are usually treeless.

Rainforests

Tropical rainforests are found in Asia, Africa, South America, Central America, and on many of the Pacific islands. They are often found along the equator. Almost half of the world's tropical rainforests are in the South American country Brazil.

There are other types of rainforests around the world, too. For example, northern Australia has a “dry rainforest” that experiences a dry season each year, and the rainy Pacific Northwest in the United States has a “temperate rainforest” that is made up of evergreen trees.



8 0
3 years ago
The structure that results when atoms are joined together by covalent bonds is called a(an) . molecule
stiv31 [10]
Molecule is formed when atoms combine by covalent bonding. The molecule may be polar or non polar.

7 0
3 years ago
What is the responsibility of the Large Intestines?
Arada [10]

Answer:

Since, we know that the large intestines have so many responsibilities .... The purpose of the intestines is basically to absorb water and including salts from a material, Which means it has not yet been digested as food, and also to get rid of any waste products left over, Also this is very important for the intestines to do this process.

7 0
3 years ago
Contains only one double bond between carbons.
zlopas [31]

Correct option b) A saturated fatty acid

When only one double bond in the molecules that is also known as monounsaturated fat. If there is more than one double bond that is known as polyunsaturated fat.

Unsaturated fatty acids have one or more than one carbon- carbon band  double bonds. That indicates the maximum possible numbers of hydrogen atoms are bonds to each carbon in the molecule. These carbon  form double bonds with the carbons next to them.

Alkenes contain carbon- carbon double bonds and unsaturated hydrocarbons with the molecular formula is Cn H2n. This is made of chains where some carbon atoms are not fully saturated with hydrogen atoms.

To learn more about polyunsaturated fat here

brainly.com/question/13141983

#SPJ4

7 0
1 year ago
What is the name for a large region with consistent organisms and weather?​
Helga [31]

Answer:

a population or community.

Explanation:

7 0
3 years ago
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