Topics in BiologyHindbrain: 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 Seminal Vesicles and Bulbourethral Glands as Male Accessory Sex Organs Male Reproductive System: Scrotum and its contents 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: Characteristics and Causes of Arterial Disorders Types of Desert and their Characteristics Characteristics of Tropical Rainforest Swamp Forest: What are Swamp Forests? Characteristics of Swamp Forests Savanna: Savanna and Grassland explained Savanna - Types of Savanna Tropical Savanna and Temperate Savanna with their Characteristics
Academic Questions in Biology
_____ cells are responsible for the formation of osteoblasts.
_____ is a bone that constitute the axial skeleton.
Which of the following is false concerning cartilages and bones?
A diagram showing the movement of energy through a food chain is called a _____.
Which of the following is NOT a part of the wrist bones (or carpal bones)?
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
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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All savannas (or grasslands) share one underlying factor and that's climate. In fact, it is the nature of their climate that give rise to grasses as their dominant plant population.
Savanna (also spelt as savannah) are often referred to as grasslands.
Generally, the savanna can be put into 3 types. These are:
Note: We also have other types of savanna based on their regions or location. Some of these includes:
Climatic savannas are formed as result of their climate. In fact, most savannas seen around the world are climatic in nature. These will include the tropical savanna and temperate savanna.
The climate of a savanna biome is usually comprised of two seasons. These are: the dry (windy) season and the wet (rainy) season.
During the dry season, the biotic (living) components of the savanna which include plants (especially grasses) and various animals disappears. This is so because wild fires are common during this period. As a result, the grasses are burnt up while the animals run away or burrow themselves deep into the soil as means of survival.
Note: During this period, the savanna is laid bare. For this reason, most trees cannot survive in the savanna as a result of the long dry seasons. However, the grasses are adapted to survive due to their methods of propagation and short life cycles.
It is these departed plants and animals that eventually constitutes the savanna ecosystem.
When the rains come (during the wet seasons), the spores and seeds of the grasses germinate and flourishes once again while the various animals migrate here (savanna) to graze on them. In addition, the rivers and lakes become filled up as life resumes to its fullest in the savanna.
It is the climatic conditions of the savanna that gives rise to its nature of biotic community and ecosystem. In short, this is what differentiates the savanna from other biomes like the tropical rainforests and deserts.
The word Edaphic relates to the soil. Edaphic savannas are formed based on the nature and type of soil present within it.
Typically, the soil as seen in edaphic savanna isn't quite rich in nutrients. It is also not deep enough and as a result, the growth of trees aren't supported here. Conversely, grasses can adapt and flourish here because of their inherent survival characteristics to soils will poor nutrients.
Edaphic savannas are typically smaller when compared to climatic savanna. In addition, they are often found in regions with lesser annual rainfall and warmer climate.
As the name implies, these savannas are derived from other types of biomes.
As an instance, the government of a nation may decide to clear out a forest area, converting it into a savanna. To this end, they will probably cut down all the trees and plant grasses in replacement, thus making it a derived grassland.
It has also been reported that the grazing actions of African elephants have given rise to derived savanna in areas that initially had a good population of trees and other plants.
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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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Amazing facts in Biology
Armadillos are western mammals known for their unique armor-like shell which are bulletproof
Although 🦓 zebras 🦓 are known for their characteristics black and white stripes, we still have some polka-dotted zebras
Charles Darwin is a British naturalist and biologist who contributed greatly into the study of evolution. According to research, he frequently ate the animals he studied
Lungs are the only human organ that can float on water
Unlike most 🐍 snakes 🐍 that lay eggs, anacondas give birth to live babies
A 🦐 shrimp's 🦐 heart is in its head
Women have more pain receptors than men
It's crucial you finish your antibiotics.
If you stop taking your antibiotics before you're supposed to, any bacteria that didn't get killed can develop an immunity to that antibiotic and become a super-strain, making it much difficult to kill in the future. So keep taking your antibiotics pill, even if you feel better.
Although rare, women can still give birth when they die. This is known as coffin birth
Men can actually get aroused post moterm. This is called priapism
NOTABLE POINTS IN Biology
For a thing to be considered Living, it must possess all the Basic Characteristics of Life. These include:
Irritability or Sensitivity
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
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:
The term Biology originated from two Greek words. They are:
Biology can therefore be defined is 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:
The above listed points are often regarded as the basic characteristics of life. You can memorize them using the acronym (MR. NIGER DAC).
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.
Note: Plants are the only orgnisms that take away CO2 from the atmosphere