Biology

Tropical Savanna and Temperate Savanna with their Characteristics

len Alfred Ajibola - Thu, 09th January, 2020 @ 08:30: AM

Topics in Biology

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Academic Questions in Biology

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_____ cells are responsible for the formation of osteoblasts.

  • A. Osteocytes
  • B. Chondrocytes
  • C. Chondroblasts
  • D. Osteoclasts
  • E. Osteoprogenitor cells
  • F. Osteoblastic

_____ is a bone that constitute the axial skeleton.

  • A. Clavicle
  • B. Scapula
  • C. Patella
  • D. Radius
  • E. Sternum
  • F. Femur

Which of the following is false concerning cartilages and bones?

  • A. Cartilage does not have a direct blood supply while bones have direct blood supply
  • B. The process of ossification replaces a cartilage to bone
  • C. The protein that makes up cartilage is called chondrin while that that makes up bone is called ossein
  • D. Cartilage grows from both ends while bones grow from one of its epiphysis
  • E. They both have living cells within them
  • F. Haversian system is absent in cartilage but present in bones

A diagram showing the movement of energy through a food chain is called a _____.

  • A. Food Chain
  • B. Food Web
  • C. Food Energy
  • D. Food Link
  • E. Food Flow
  • F. Food Pyramid

Which of the following is NOT a part of the wrist bones (or carpal bones)?

  • A. Cuboid
  • B. Scaphoid
  • C. Hamate
  • D. Triquetral
  • E. Pisiform
  • F. Trapezium

The statements below are true concerning arteries except _____.

  • A. The arterial wall has 4 layers

  • B. Tunica Adventitia is the outermost layer of an artery

  • C. Aorta is the largest artery in the human body

  • D. Pulmunary artery conveys deoxygenated blood

  • E. Internal bleeding will occur when a deeply located artery is broken

  • F. Arterial vascular disorders are worsened in people with diabetes and renal failure

The following statements are true concerning blood vessels except _____.

  • A. They are comprised of arteries, veins and capillaries

  • B. Problems associated with blood vessels are called vascular disorders

  • C. All veins carry blood towards the heart

  • D. Capillaries are found at cellular level

  • E. Arteries usually divide to form arterioles

  • F. Arterioles give rise to capillaries

Food Pyramid - Len Academy

The above diagram shows a _____.

  • A. Food Chain

  • B. Food Web

  • C. Food Flow

  • D. Food Energy

  • E. Food Pyramid

  • F. Food Hierarchy

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Tropical and Temperate Savanna:

The location of savanna or grassland (on earth) is an important criteria in determining whether its tropical or temperate. To this end, the tropical savanna are found in the tropics while the temperate savanna are present in the temperate region

Note: The climate determines whether a region is tropical or temperate. This will be highlighted in the characteristics of both types of savanna.

Please read on the Introduction to Savanna here.

 

Tropical Savanna

The term tropics means "close to the equator". Tropical grasslands are located between 5o North and 20o South of the equator. This region lies between the Tropics of Cancer and the Tropics of Capricorn.

The tropical regions on earth where the grasslands are found include:

  • Central America
  • West Africa
  • Northern Australia
  • Some parts of East Africa
  • North West part of South America
  • South East Asia
  • Within Brazil

Please read on Ecology and Branches of Ecology here.


Characteristics of Tropical Savanna

  1. As the name suggests (grassland), it comprises of tall grasses.
    You can read on Swamp Forests and Types of Swamp Forest here.
  2. The annual temperature range is about 11oC.
    Please read on the Characteristics of Tropical Rainforests here.
  3. The extreme/high temperature ranges from 21oC – 30oC.
    Please read on Types of Desert and their Characteristics here.
  4. The annual rainfall is between 600 – 1500mm.
  5. Presence of few short and widely spaced trees here.
  6. In Africa and Australia, the grasses are called savanna. In Brazil, they are called campos while it's called ilanos in South America.
    Please read on the Concept of an Ecosystem here.
  7. The seasonal convectional rainfall has a single maximum. (Think of a single maximum as a 1 time period within a year where rainfall occurs at its peak).
  8. Examples of trees found in tropical savanna include acacia, baobab and shea-butter.

Please read on the Three main Types of Savanna here.

 

2. Temperate Grassland

A temperate (grassland) region lies between between the Tropic of Cancer and the Arctic Circle or between the Tropic of Capricorn and the Antarctic Circle. The temperatures here can be quite hot during the summer and extremely cold during winter.

Note: The growing seasons in a temperate grassland has a moderate temperature. They are found in the following areas:

  • North America
  • Argentina
  • Australia
  • South Africa
  • Asia

Please read on the Introduction to Biomes here.


Characteristics of Temperate Grassland

  1. It has a very hot summer (with temperatures above 25oC) and cold winter (with temperatures below 0oC).
  2. The vegetation (grasses) is dependent on the continental climate where the temperate grassland is present.
    You can read on the Components of an Ecosystem here.
  3. It has an average rainfall of 510mm.
  4. Heavy rainfall is not usually common here. Instead, the rainfall is light and convectional.
  5. The grasses have a uniform height and are shorter than those of the tropical grassland.
  6. The trees present here are few in numbers.
    You can read on the Differences between Plants and Crops here.
  7. The grasses are named differently within the various regions where they are found. The names are:

  • The Downs of Australia
  • The Steppe of Central Europe and Russia
  • The Veld of South Africa
  • The Pampas of Argentina
  • The Prairies of North America

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Alfred Ajibola is a Medical Biochemist, a passionate Academician with over 7 years of experience, a Versatile Writer, a Web Developer, a Cisco Certified Network Associate and a Cisco CyberOps Associate.


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