Topics in Basic Science
Resources from living things Resources from animals Importance of immunization Types of Carbohydrates: Monosaccharides and Polysaccharides Carbohydrates: Disaccharides and Oligosaccharides Len Academy Examination Questions for Basic Science, JSS2, 2nd Term Len Academy Examination Questions for Basic Science, JSS3, 3rd Term Len Academy Examination Questions for Basic Science, JSS3, 2nd Term Primates: Characteristics of Primates Effects of improper waste management Waste Management: Causes of waste in the society Concept of mass and weight Mineral Salts: Sources, functions and deficiencies of macronutrients Sources, functions and deficiencies of micronutrients Len Academy questions for Basic Science JSS1 Len Academy mid-term test questions for Basic Science JSS1, 2nd Term Microorganisms causing food, water and air borne diseases Vector borne organisms and the diseases they cause Bones of the Human Skeleton Drugs explained with their types and side effectsAcademic Questions in Basic Science
Which of the following diseases is associated with river blindness?
A. Anthrax
B. Lawnmower Disease
C. Onchocerciasis
D. Devil's Crunch
E. Trypanosomiasis
F. Tularemia
The vector for yellow fever is _____.
A. Aedes Mosquito
B. Female Anopheles Mosquito
C. Plasmodium
D. Flavivirus
E. Black Fly
F. Bacillus Anthracis
The bones of the head and face make up the skull. These bones are _____ in number.
A. 12
B. 14
C. 16
D. 18
E. 20
F. 22
Bacteria are not a constituent of our environment.
A. True
B. False
Below are types of drugs. Which of these is considered as pain killers?
A. Stimulants
B. Depressants
C. Opiods and Morphine Derivatives
D. Hallucinogens
E. Anabolic Steroids
F. Cannabinoids
Which of the following statement is false concerning drugs?
A. Drugs can be inhaled
B. Drugs can be injected directly into the bloodstream
C. Drugs can be eaten
D. Drugs exist exclusively in the forms of tablets and syrups
E. Drugs can be placed under the tongue
F. Drugs can be taken with water or another liquid
Vaccination involves a process of introducing pathogens or germs into a person in order to prevent such person from the diseases they cause.
A. True
B. False
With regards to the human health, foreign bodies are best regarded as _____.
A. International bodies
B. Antilators
C. Antibodies
D. Antigens
E. Antibiotics
F. Antidotes
1. _____ is a branch of a science that deals with the study of life.
2. Objectives of drug usage includes the following EXCEPT _____.
Please read on the meaning of Drug, Types and Side Effects of Drugs here.
3. An element with a valency of +4 is _____.
Please read on Periodic Table and Classification of Elements here.
4. _____ is formed when an acid is dissolved in water.
5. Which of the following elements is NOT a noble gas?
6. A damp _____ litmus paper turns _____ in NaOH.
You can read on the Physical and Chemical Properties of Acids here.
7. The S.I unit for electric current is the _____.
Please read on the Fundamental Quantities and Units in Physics here.
8. The image formed in the pin-hole camera is _____.
9. A chemical change will not include _____.
10. A ball with a mass of 20g rolls from a height of 8m. Calculate its kinetic energy when it has a velocity of 2ms-1.
Please read on the concepts of Velocity and Acceleration here.
11. The valency of 'N' in NaNO3 is _____.
You can attempt Len Academy Questions on various Subjects (with Answers) here.
12. Myopia can be corrected with glasses that have _____ lenses.
13. The vector of river blindness is _____.
Please read on Vector of Diseases, Vector Borne Organisms and the Diseases they cause here.
14. _____ atoms are present in H2SO4.
15. The spontaneous emission of particles or rays as seen in the nucleus of certain atoms is termed _____.
16. Components of Information and Communication Technology (ICT) will NOT include _____.
17. Certain plants are able to survive in water because _____.
You can read on the Differences between Plants and Crops here.
18. A hormone that increases the body's metabolic function is _____.
Please read on Homeostasis and Negative Feedback Mechanism here.
19. Rods and Cones of the eyes are concentrated in the _____.
20. The final bending adjustment of light into the retina is done by the _____.
21. A bone found in the middle ear is the _____.
Please read on all the Bones of the Human Skeleton explained with diagrams here.
22. The function of chlorine in the water purification process is to _____.
23. The vitamin obtained from the sun functions to _____.
You can read on the Sources, Functions and Deficiencies of Macronutrients here.
24. Desertification is likely to occur in which Nigerian State?
25. The ozone layer of the atmosphere is composed of _____.
26. The following activities of man will cause flooding EXCEPT
You can read on Soil Erosion and Types of Soil Erosion here.
27. The energy currency in the body is _____.
Please read on the Characteristics of Living Organisms. (Answer is present here).
28. _____ is a contagious disease.
You can read on Micro-organisms causing Food, Water and Air Borne Diseases here.
29. A petrochemical will NOT include _____.
30. The pH value representing the most acidic solution is _____.
You can Attempt Len Academy Mid-Term Test Questions for JSS1 here.
You can attempt Len Academy Basic Science Examination Questions for JSS1, 2nd Term here.
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Amazing facts in Basic Science
According to scientific research, if the first tear drop comes from the right eye, it’s tears of joy. If it comes from the left eye, then it is as a result of pain
Dentistry is the oldest profession in the world. This is considered true because a research conducted by the University of Bologna, Italy on a 14,000-year-old skull found that one rotten tooth in the jaw had been deliberately scoured and scraped with a dental tool
Scientific research has it that the human nose can distinguish more than a trillion different odors
Tigers have striped fur. So also is their skin
The most common wild bird in the world is native to Africa, and it's the red-billed quelea with a population estimated to be around 1.5 billion
Of all animals, mosquitoes hold the record of killing most humans annually. They are responsible for the deaths of 725,000 - 1,000,000 persons yearly
Antibiotics fights and kills bacteria. However, they do nothing to a virus
All insects have six legs. However, dragonfly has six legs but can't walk
The chin is defined as the protruding part of the face below the mouth, formed by the apex of the lower lip. It is shown below:
Interestingly, humans are the only animals with chin
Ripe cranberries will bounce like a ball. For this reason, they are nicknamed 'bounceberries'. They will also float in water
Notable points in Basic Science
We have six classes of food. These are:
Carbohydrates
Proteins
Fats and Oils
Vitamins
Mineral Salts
Water
In humans, roughages are not classified as one of the classes of food. This is so because they aren't digested. Instead, roughages facilitate the movement of bowels in the large intestine (colon); and for this reason, they can become useful in treating constipation.
Food refers to anything that is ingested by living organisms, giving them nutrients and thus enabling them to stay alive.
As an instance, 99% of a panda's diet is bamboo. In this case, bamboo is considered as food to a panda since it provides a source of nutrient and keeps it alive. This is shown in the image below:
The only process in nature that actively enriches our atmosphere with oxygen is photosynthesis. Every other process like respiration, burning and combustion takes away oxygen from it. In addition, they introduce carbon(IV)oxide (CO2) into the atmosphere.
Photosynthesis is also the only process that takes away carbon(IV)oxide (CO2) from the atmosphere.
Photosynthesis is defined as a process by which green plants manufacture food by utilizing carbon(IV)oxide and water in the presence of sunlight.
Oxygen is given off as a by-product of photosynthesis. In regards to this, it is recommended that each person plants a tree.
Matter is composed of particles which can be:
Tightly packed together (as seen in solids).
Loosely packed together (as seen in liquids).
Completely separated (as seen in gases).
The movement of the particles of matter is a function of the overall kinetic energy present in them. You can think of kinetic energy as energy in motion.
An increase in the particles' vibrational, rotational or translational motion will imply an increase in temperature while a decrease in the particles motion (vibrational, rotational and translational) will mean a decrease in temperature. Based on this knowledge, we can therefore define temperature as the measure of the average kinetic energy possessed by the particles of matter.
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.
Below are some formulas pertaining Intelligence Quotient:
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