Biology

Tropical savanna explained with its characteristics

len Alfred Ajibola - 11th December, 2021 @ 10:14 AM

Topics in Biology

Tropical savanna explained with its characteristics Ecological pyramid explained with its importance and limitations Hindbrain: Medulla Oblongata and its features Food web explained with examples Biology Scheme of Work, SS1, First Term Biology Scheme of Work, SS1, 2nd Term Biology Scheme of Work, SS1, 3rd Term Male accessory sex organs: Seminal vesicles and bulbourethral glands Scrotum and its contents: Testicles Brain: Introduction to the human brain Forebrain: Lobes of the cerebrum and their functions Cerebellum: Parts and functions of the cerebellum Midbrain: Division and functions of the midbrain Negative feedback mechanism in homeostasis Arterial disorders explained with their causes Types of desert and their characteristics Characteristics of tropical rainforest Swamp forest: What are swamp forests? Characteristics of swamp forests Savanna biome: Concept of the savanna


Academic Questions in Biology

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In a food chain, the primary consumers are classified under trophic level  _____.

  • A. Zero

  • B. One

  • C. Two

  • D. Three

  • E. Four

  • F. Five

Cold blooded animals are referred to as _____.

  • A. Homeotherms

  • B. Endotherms

  • C. Poilokitherms

  • D. Ectotherms

  • E. Thermotherms

  • F. None of the above

All reptiles are vertebrates.

  • A. True

  • B. False

_____ cells are responsible for the formation of osteoblasts.

  • A. Osteocytes
  • B. Chondrocytes
  • C. Chondroblasts
  • D. Osteoclasts
  • E. Osteoprogenitor cells
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_____ is a bone that constitute the axial skeleton.

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  • E. Sternum
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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
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Which of the following is NOT a part of the wrist bones (or carpal bones)?

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

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Tropical Savanna:

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

Please read on the introduction to savanna here.

The climatic conditions of a region determines whether that region is tropical or temperate. In this regard, tropical regions are located close to the equator.

 

In simple words, the term 'tropics (or tropical)' means 'close to the equator'. Tropical grasslands are located between 5o north and 20o south of the equator. This region lies between the tropic of cancer and the tropic of capricorn. It is shown in the image below.

Tropic of Cancer and Tropic of Capricorn

Please read on temperate savanna here.

 

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 the types of savanna here.

 

Characteristics of tropical savanna

  1. As the name suggests (grassland), it comprises of tall grasses.
    You can read on swamp forests 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 deserts here.

  4. The annual rainfall is between 600 – 1500mm.

  5. Few short and widely spaced trees are present.

  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 one 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.

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Alfred Ajibola is a Medical Biochemist, a passionate Academician with over 10 years of experience, a Versatile Writer, a Web Developer, a Cisco Certified Network Associate and a Cisco CyberOps Associate.


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NOTABLE POINTS IN Biology

For a thing to be considered living, it must possess all the basic characteristics of life. These include:

  1. Movement

  2. Respiration

  3. Nutrition

  4. Irritability or Sensitivity

  5. Growth

  6. Excretion

  7. Reproduction

  8. Death

  9. Adaptation

  10. Competition

Please read the explanations on all the basic characteristics of life here

During strenuous exercises like sprinting or running, your body may actually work in the shortage of oxygen. During this time, your body owes oxygen (called oxygen debt) and it must be replenished or repayed after the exercise is stopped. This is why you breathe excess of oxygen after you stopped the exercise.

This is the concept of anaerobic respiration

Food Chain - Len Academy

A food chain is a diagram that shows the relationship between plants and animals within a habitat on the basis of how they rely on each other for food.

Note: Habitat is a place where an organism live. It is of three types:

  • Terrestrial (Land)
  • Aquatic (Water)
  • Arboreal (Treetops)

You can read on food chain here

The term Biology originated from two Greek words. They are:

  • Bios: means life.

  • Logos: means knowledge or to study.

Biology can therefore be defined as the study of life

Anything that has life is generally considered as a living organism (or organism). All living organisms must be able to carry the following activities:

  1. Movement

  2. Respiration

  3. Nutrition

  4. Irritability or Sensitivity

  5. Growth

  6. Excretion

  7. Reproduction

  8. Death

  9. Adaptation

  10. Competition

The above listed points are often regarded as the basic characteristics of life. You can memorize them using the acronym -> MR. NIGER DAC.

You can read on the introduction to biology and the basic characteristics of life here

The gas used in the manufacture of food by plants is Carbon dioxide or Carbon(IV)oxide or CO2

Plants manufacture food through a process called photosynthesis.

Please read on photosynthesis here

It is noteworthy to state that plants are the only orgnisms that take away CO2 from the atmosphere