CSEC Biology: Respiration
Respiration is the chemical process by which energy is released from organic compounds (food) by living cells.
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JH@Quelpr
May 3, 20202 min read
CSEC Biology: Irritability in Humans
The nervous system in humans consists of the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS comprises...
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JH@Quelpr
Apr 30, 20204 min read
CSEC Biology: Irritability in Plants
Irritability is the ability of a living organism to react to changes in its environment, or stimulus. A stimulus is a detectable change...
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JH@Quelpr
Apr 29, 20203 min read
CSEC Biology: Growth, Seeds and Germination
Growth is an irreversible change in the size of cells and organisms due to cell division (mitosis) and enlargement. Every living organism...
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JH@Quelpr
Apr 27, 20204 min read
CSEC Biology: The Mechanism of Fertilization in Humans
Fertilization in humans is simply how the two gametes (the sperm and the egg cell) fuse to form the zygote.
Before the whole process...
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JH@Quelpr
Apr 24, 20203 min read
CSEC Biology: The Menstrual Cycle
This monthly cycle of changes is known as the menstrual cycle.
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JH@Quelpr
Apr 24, 20204 min read
CSEC Biology: The Male and Female Reproductive Systems in Humans
In this lesson, we will cover: The basic structures and parts of the male and female reproductive systems The functions of the parts of...
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JH@Quelpr
Apr 22, 20206 min read
CSEC Biology: Reproduction in Plants
As we said before, the main site of plant reproduction is in the flower. Each flower has small differences based on what suits the plant...
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JH@Quelpr
Apr 21, 20206 min read
Transport in Plants: CSEC Biology
Plants move around materials using two sets of tissues: the xylem and the phloem. The xylem transport water and dissolved mineral ions in...
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JH@Quelpr
Apr 19, 20203 min read
CSEC Biology: Genetic Diagrams, Punnet Squares and Pedigree Charts
There are several diagrams and charts that are used to show the inheritance of certain alleles through generations.
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JH@Quelpr
Apr 17, 202011 min read
Reproduction, Continuity and Variation: CSEC Biology
Reproduction is the process by which living organisms produce new individual organisms or offspring.
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JH@Quelpr
Apr 5, 202011 min read
Transport in Living Organisms: CSEC Biology
Transport is all about getting materials to where they need to go. In every multi-cellular organism, there exists a set structure of...
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