Biology Scheme of Work, SS1, 2nd Term

_____ cells are responsible for the formation of osteoblasts.

• A. Osteocytes
• B. Chondrocytes
• C. Chondroblasts
• D. Osteoclasts
• E. Osteoprogenitor cells
• F. Osteoblastic

_____ is a bone that constitute the axial skeleton.

• A. Clavicle
• B. Scapula
• C. Patella
• D. Radius
• E. Sternum
• F. Femur

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
• D. Food Link
• E. Food Flow
• F. Food Pyramid

Which of the following is NOT a part of the wrist bones (or carpal bones)?

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

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

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

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

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 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:

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

Note: Plants are the only orgnisms that take away CO₂ from the atmosphere