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

Ecosystem

An ecosystem is a community of plants and animals (living things) that interact with each other and their natural surroundings, including non-living things such as rocks, water, and air. Each ecosystem is sustained by a flow of energy through it and the recycling of nutrients within it.

Community

When plants and animals live together, they form a community.

Photosynthesis

Photosynthesis is the process in which plants absorb CO₂ from the air and convert it into sugar using the sun's energy.

Biomes

Biomes are large ecosystems at the global scale where the climate and vegetation are uniform.

Xerophytic Plants

Xerophytes are plants that have adapted by altering their physical structure to survive in harsh climates. These plants exhibit several... Continue reading "Introduction to Ecosystems and Ecology" »

Population: Definition and Historical Drivers

Population: a group of people who live in a territory or a place at a particular moment in time.

Which factors have determined the growth of the human population from the Neolithic Revolution onwards?

Factors include: the expansion of agricultural areas, the natural environment and its climate, and catastrophic events such as wars and epidemics.

Why was there such a large increase in the world’s population from the end of the 19th century? Because of the Industrial Revolution.

How many people were in the world in 2015? Approximately 7.3 billion.

Four Demographic Models

1. Old demographic regime: high birth rate, high mortality rate.
2. Transition regime: high birth rate, falling mortality rate (demographic

Groundwater Aquifers and Definitions

What is an Aquifer?

An aquifer is a geologic formation capable of storing and transmitting enough water to supply wells.

Essential Requirements for Aquifers

1. Must be below the water table.
2. Must have sufficient pore space (porosity) to hold water.
3. Must allow water flow (sufficient permeability).
4. Must receive a sufficient amount of recharge (typically via infiltration of precipitation).

Types of Aquifers

Unconfined Aquifer

• The water table often intersects stream channels.
• The unsaturated zone directly recharges the saturated zone (no impermeable layer capping it).

Perched Aquifer

A perched aquifer is localized and occurs due to variations in the porosity, permeability, and properties of soil, sediment, and rock.

• An aquiclude

Peripheral Nervous System

Consists of nerves and supports it collects info about the body's external and internal environment.

Central Nervous System

Consists of the brain and spinal cord, processes info, and creates a response.

Cell Body

The largest part of the typical neuron.

Dendrites

Short branched extensions that receive impulses from other neurons and carry them to the cell body.

Axon

Long fiber that carries impulses away from the cell body.

Myelin Sheath

Insulating membrane that surrounds a single, long axon.

Resting Potential

Electrical charge across the cell membrane of a resting neuron.

Action Potential

A nerve impulse that charges more negatively charged to more positively charged.

Threshold

The minimum level of a stimulus that is required to cause... Continue reading "Understanding the Nervous System and Sensory Organs" »

Ancien Régime and the Transition to Parliamentary Monarchy

Understanding the Ancien Régime

The Ancien Régime was a system characterized by:

• Political Absolutism: Kings and queens held absolute power.
• Social Hierarchy: Society was divided into estates with unequal privileges.
• Subsistence Economy: The economy focused on meeting basic needs.
• Cultural and Religious Influence: Culture and religion served the ruling class.

Factors Leading to Change

Several factors contributed to the decline of Absolutism and the rise of Parliamentary Monarchy:

• Bourgeoisie and Peasants: The bourgeoisie criticized the privileges of nobles and clergy, advocating for social recognition based on merit. Peasants opposed the manorial system and excessive taxes.
• Economic Challenges:

A

• Agreement: A mutual understanding between people.
• Amend: To change or improve something.
• Analyze: To separate something into parts and examine them.
• Approach: To come closer or near.
• Argument: A strong disagreement.

B

• Banish: To make someone leave a place.

C

• Campaign: A series of actions toward a goal.
• Characteristic: A specific feature.
• Citizen: A person who is a member of a country.
• Compare: To look at how things are alike.
• Complaint: To tell others that you are unhappy.
• Conflict: A fight between two or more people or groups.
• Connection: Things in common.
• Culture: A set of beliefs and customs.

D

• Damage: Harm that is done.
• Debate: To discuss different views.
• Delegate: A person who has power to speak for others.
• Democracy: The power to vote for what people believe

Unit 10: English Spelling and Phonology

Index:

• English Spelling
• Orthographic Codes in EFL (Rules)
• Sound-Grapheme Relationships: Vowels, Consonants, Silent Letters
• Teaching the Written Code
• Games and Tasks

1. English Spelling

Study of language from two perspectives:

• Diachronic: Study of language over time.
• Synchronic: Study over a specific period in history.

English is the result of the influence of different languages: French, Greek, Latin, Anglo-Saxon (Latin alphabet).

The Great Vowel Shift was a massive change affecting long vowels in the 15th-18th centuries.

Examples: 'enquiry' vs. 'inquiry', American English 'colour' vs. 'color'.

2. Orthographic Codes in EFL (Rules)

Requires good visual memory and the ability to associate forms and meanings.

Rules:

• Consonant

Living vs. Non-Living Things

Both living and non-living things are made up of matter. All living things share certain common characteristics. These characteristics can help us identify a mineral as a non-living thing and a butterfly as a living one.

Composition of Non-Living Things

Non-living things are made up of inorganic matter. The most abundant chemical elements include:

• Oxygen
• Silicon
• Aluminum
• Iron

Composition of Living Things

Living things are made up of chemical elements called bioelements. The most abundant are:

• Oxygen
• Nitrogen
• Phosphorus
• Sulfur

Key Characteristics of Life

Nutrition

Autotrophic Nutrition

Organisms with autotrophic nutrition capture energy from their environment and use it to transform inorganic substances, such as water, carbon dioxide,... Continue reading "Key Differences Between Living and Non-Living Things" »

Genetics Terminology

Basic Concepts

• Trait: An inheritable characteristic of an organism.
• Gene: A DNA segment containing information that controls a specific trait.
• Allele: A variant form of a gene, often arising from mutations, contributing to hereditary variations.
• Locus (pl. Loci): The specific location of a gene on a chromosome.

Zygosity

• Homozygous Organism: Possesses identical alleles for a given gene (e.g., AA or aa).
• Heterozygous Organism: Possesses different alleles for a given gene (e.g., Aa).

Allele Interactions

• Dominant Allele: An allele that expresses its phenotype regardless of the paired allele.
• Recessive Allele: An allele that expresses its phenotype only when paired with an identical allele.

Genetic Inheritance Patterns

• Dominance (Dominant