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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Deserts can be generally classified into 2 types. These are:
Note: With regards to the hotness or coldness of a desert, we can further classify them into 4 types. These are:
Below are some explanations on the aformentioned types of desert.
The hot deserts are located on the western coast of continents within latitudes 15o North and 30o South of the Equator.
The subtropical deserts are categorized as hot deserts. In short, they are the hottest deserts in the world. (Subtropical deserts will be explained in the latter part of this article).
Note: Xerophytes are defined as drought resistant plants. They are found in hot deserts are able to survive through special adaptive features found on them. Examples of xerophytes are cactus, wiring grasses, thorn bushes and acacia.
Hot deserts show the following characteristics or features:
Cold deserts are found in the interior of continents around 45o North and 60o South of the Equator.
The cold winter deserts and polar deserts are classified as Cold deserts. (Both will be explained in the latter part of this article).
Note: A cold desert may not remain cold throughout the year; but during the winter periods, they show extreme coldness in their temperatures. They can also act as a functioning ecosystem for organisms like the polar bear and fishes.
Transpiration in plants is defined as a process through which water is lost from the aerial parts of a plant; especially through the stomata present in the plant's leaf.
Water may also be lost from the plant's stem and flowers during transpiration.
They are the hottest deserts in our world. They are very hot and dry in the summer but can be a little cooler in the winter. Their soils are typically sandy in nature but can also be rocky in some instances.
Note: The subtropical desert have been reported to be so hot to an extent that rainfall evaporates from the atmosphere before they hit the ground.
Examples of subtropical deserts include the Sahara Desert in North Africa, Kalahari Desert in South Africa, Chihuahua Desert in USA, Mojave Desert in USA, Great Sandy Desert in Australia and Sonoran Desert in USA.
The plants (xerophytes) and animals found here include cactus plants, snakes and a variety of insects. They are usually more active at night.
Coastal deserts are present around the earth's coastal regions (between 20o to 30o Latitude of the Equator). They will typically have a long warm summer and a short cool winter.
Examples of coastal deserts are the Atacama Desert in Chile and Namib Desert in Namibia.
As the name implies, the cold winter deserts (also called a Semi-Arid deserts are characterized with a cold winter and dry summers. They also have a very low annual rainfall and snowfall. This lack of rainfall in cold winter deserts is caused by a phenomenon termed the rainshadow effect.
Think of a rainshadow effect as a process whereby moisture is prevented from reaching an area as a result of high mountains present around such area.
Examples of Cold Winter Deserts include the Gobi Desert in Mongolia and Red Desert in USA.
Polar deserts are found in the Arctic and Antarctica regions of earth. They have a characteristic cold temperature throughout the year.
An example of the polar desert is the Antarctica.
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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