Notes, summaries, assignments, exams, and problems for Secondary education

While some argue that zoos help protect endangered species, their conservation efforts are often *ineffective*.

Ineffective Conservation Efforts

• Only a small percentage of animals in zoos are part of genuine breeding programs for endangered species.
• Even fewer are ever released back into the wild.

If zoos truly wanted to protect endangered species, they would focus on reintegrating animals into their natural habitats instead of keeping them in enclosures. In many cases, zoos prioritize popular animals that attract visitors rather than those that need urgent conservation efforts.

Prioritizing Profit Over Protection

Instead of keeping animals in captivity, resources should be directed toward:

• Protecting their natural habitats.
• Enforcing anti-poaching

Prokaryotic Cells: Bacteria

• Bacteria capsule: The outer jelly-like layer.
• Bacteria wall: The rigid structure that maintains cell shape.
• Fimbriae: Multiple short appendages used to attach to surfaces.
• Flagellum: A long appendage used for movement.
• Plasmid: A small ring of DNA.
• Ribosomes: Organelles that synthesize proteins.
• Nucleoid: The area where genetic material is concentrated.
• Cell membrane: A selective barrier.
• Cytoplasm: Everything inside the cell excluding the nucleus.

Eukaryotic Cells: Animal Cells

• Mitochondrion: Produces energy for the cell.
• Cell membrane: A selective barrier.
• Cytoplasm: Everything inside the cell excluding the nucleus.
• Nucleus: The site where ribosomes are made.
• Cytoskeleton: A network of protein filaments in the cytoplasm.
• Ribosomes:

English Grammar and Vocabulary Practice Exercises

Multiple Choice Quiz

1. Last Saturday, the burger restaurant was so crowded that the girls __________ to wait outside.

• was told
• told
• sit down
• were told

2. The hyperloop train is a __________ train that can reach speeds of around 1,200 km/h.

• time-consuming
• high’s speed
• high-speed
• high-school

3. People sometimes forget the __________, and they get stuck on rocks with water all around them.

• wave
• tides
• sunsets
• sunrise

4. I love walking in the fields at __________ when the first light appears in the sky.

• sunrise
• sunset
• dawn
• twilight

5. My order __________ until next Monday.

• won’t ship
• will be shipped
• won’t be shipped
• won’t be shipped

6. Pollution from nearby factories is killing the native __________.

• wildlife
• sources
• threats
• transport

7.

Math Reference Cheat Sheet

Rules for Multiplying and Dividing Integers

Special Rules for Integers

• Even amount of negative integers: Product/quotient is positive.
• Odd amount of negative integers: Product/quotient is negative.

Classifying Decimals

• Terminating decimals: Have a remainder of zero; the decimal stops.
• Non-terminating decimals: Continue infinitely.
  • Repeating: Continues infinitely and repeats a pattern (denoted by bar notation). Examples: 0.333..., 0.49090..., 0.166...
  • Non-repeating: Continues infinitely but does not repeat a pattern. Examples: Pi (π) and Euler's number (e).

Calculating Percent Error

% Error = [(Estimated Value... Continue reading "Essential Math Cheat Sheet: Integers, Decimals, and Properties" »

Board of Directors: Purpose and Responsibilities

1) What is the purpose of the Board of Directors?
A group of people who jointly oversee the activities of a company.

Functions:

• They must represent the interests of the shareholders and the company.
• Decide whether shareholders receive dividends and, if so, how much they receive.
• Board members approve annual budgets.
• Support the CEO, whether appointed or hired.
• Board members hire and fire top executives.
• They decide on executive compensation.

Who Is in Charge of the Board?

2) Who is in charge of the Board of Directors?
Shareholders of a public company elect the members of the Board of Directors; the board's composition may vary depending on the type of business.

Who Reports to the Board?

3) Who reports to

Essential Vocabulary List: A-Z

1. Adulation – Excessive flattery.
2. Assert – To state a fact.
3. Befall – To have something bad happen to someone.
4. Burgeon – To begin to grow rapidly.
5. Contract – A written or spoken agreement.
6. Cumbersome – Large, heavy, or difficult to carry.
7. Demean – To cause a severe loss of dignity.
8. Digress – To leave the main subject temporarily in speech or writing.
9. Eminent – Famous or respected within a specific sphere.
10. Engross – To absorb all the attention or interest.
11. Facilitate – To make an action easy or easier.
12. Fastidious – Very attentive to accurate details.
13. Generalize – To make a broad statement by inferring from specific cases.
14. Grandeur – Splendor.
15. Hitherto – Until now.
16. Hypothetical – Supposed but not necessarily

The Structure of Feudal Society

Feudal society was divided into estates. Each estate was a closed group with little social mobility. People belonged to a group from birth for a lifetime. This was considered God's will, and people had to accept their fate. In this society, the laws did not apply equally to everyone. Society was divided into two main groups:

• Privileged classes: Nobility and clergy (had all the privileges and no duties).
• Non-privileged classes: Peasants and artisans (had all the duties and few rights).

At the top of the feudal system was the monarch, who was recognized as the primus inter pares.

The Fiefdom

A fiefdom was land given to a vassal by a king or noble, who became the feudal lord. The lord lived off rent and exercised authority... Continue reading "Feudal Society and the Fiefdom System Explained" »

Personal Stories and Interview Snippets

Unexpected Park Celebration

Yesterday, I arrived at the park in the afternoon for a walk. As I was walking along the path, I saw a group of kids playing football. They were very focused, but suddenly one of them fell to the ground and started laughing out loud. I approached, concerned, but he told me it was all a joke. When I looked around, I noticed there were balloons and a big banner that said, "Happy Birthday, Ana!". It turned out to be a surprise party for one of his friends. The kids started inviting me to join them, and although I hesitated at first, I accepted and ended up playing with them for hours. It was an unexpected and very fun day.

Classroom Birthday Prank

Yesterday, I went to school as usual.... Continue reading "Personal Narratives: Park Surprise and Birthday Prank" »

Physiographic Divisions of Brazil and India

(1) The physiography of Brazil is divided into the Highlands, the Great Escarpment, the Coastal region, the Plains, and the Island groups. The physiography of India is divided into the Himalayas, the North Indian Plains, the Peninsula, the Coastal Plains, and the Island groups.

Mountain Ranges and Altitudes

(2) There are no high and long extending mountains in Brazil. On the other hand, there are many high and long extending mountains in India.

(3) The Himalayas mountain range extends in the northern part of India. Similarly, the mountainous region of the Western Ghats is in the west and the mountainous region of the Eastern Ghats is in the east of the peninsular region of India.

(4) The highest range... Continue reading "Physiography and Climate of Brazil and India" »