Topics in Basic ScienceLen Academy questions for Basic Science JSS1, second Term Len Academy mid-term test questions for Basic Science JSS1, 2nd Term Micro organisms causing food, water and air borne Diseases Vectors of diseases Bones of the Human Body Meaning of Drugs, Type of Drugs and their side effects Immunization explained Carbohydrates and Sugars Uniqueness of Man Causes and Effects of improper Waste Management
Academic Questions in Basic Science
The ultimate source of energy is _____.
ANSWER is sun
Without the sun, there will be no life on earth. Even plants require the sun to manufacture their food. The mode of nutrition through which organisms manufacture their own food is termed autotrophic nutrition. Please read on autotrophic nutrition here.
Note: Every other form of energy directly or indirectly comes from the sun.
The speed of wind is measured with a wind vane.
TRUE or FALSE
ANSWER is false
The speed of wind is measured with an anemometer while the direction of wind is measured with a wind vane
QUESTION: The nutrient majorly found in the liver is _____.
ANSWER is: Protein
A nutrient is any substance that contains the nourishment essential for life. Nutrients are present in all the six classes of food. The classes of food are Carbohydrate, Protein, Fats and Oil, Vitamins, Mineral Salts and Water.
Note: The liver is a very rich source of protein. Other sources of protein are fish, egg and meat.
The uniqueness of man can be defined as that which makes man distinct from every other animal and living organism. Humans are higher animals when compared to other animals. They belong to the order primates and thus share the following characteristics:
They have their eyes in front on their head (stereoscopic vision)
They have a flexible shoulder joint
They have opposable thumbs and toes
They can stand erect
They have bigger brains
The possession of a highly developed brain is the major attribute of man's uniqueness. This has enable man to reason, solve problems and advance in technology. Below are the effects of man's developed brain.
Ability to advance language communication and speech
Ability to know what's right and wrong
Ability to create advanced technology like phones and automobiles.
Ability to think and remember
Ability to manipulate things with their fingers and toes
The brain is one part of the central nervous system (the other part been the spinal cord). It is located in a part of the skull called the cranium. Human brains are highly folded and is generally divided into three regions:
Image Credit: Human Brain Facts
Forebrain: It is the largest part of the brain and is composed of two halves of cerebral hemispheres. The cerebrum is responsible for the initiation and coordination of voluntary activity in the body.
Midbrain: It connects the fore brain to the hind brain. It serves important functions in movements of the eye, and in auditory and visual processing. It is also called mesencephalon
Hindbrain: It's composed of 2 lobes of cerebellum and the medulla oblongata. The medulla oblongata controls involuntary activities like breathing and swallowing while the cerebellum is responsible for voluntary movements.
Note: Intelligence may be defined as general cognitive problem-solving skills. It changes over time with age and can be inherited.
An intelligence quotient (IQ) is a score derived from a set of standardized tests developed to measure a person's cognitive abilities in relation to their age group.
IQ may also be defined as the ratio of mental age (MA) to chronological age (CA) multiplied by 100
IQ = MA x 100 ÷ CA
MA = Mental age
CA = Chronological age
IQ above 100 = Brilliance
IQ that equals 100 = Average
IQ below 100 = Below Average
Amazing facts in Basic Science
NOTABLE POINTS IN Basic Science
All fruits have seeds. There is nothing like a naturally occurring seedless fruit. Even banana, coconut and pineapple have all got seeds.
Weight can be defined as the force of gravity acting on an object. If you traveled to space, you would be weightless because there isn't any force of gravity acting there. We all have weight on earth becasue the force of gravity acts here. Weight is measured in Newton
Massis the amount or quantity of matter/material contained in a body, For instance, everything you are composed of, both from within and outside will make up your mass. Mass is constant throughout the universe. You will have the same mass on earth and moon. Mass is measured in gram or kilogram. Mass is quite different from weight.
Matter is anything that has mass and occupy space. Matter can exist in four states namely: