7th Biology - Functions in Organisms III

St. George's College

Subject: 7th BIOLOGY Class: Functions in

Organisms III: Reproduction and Growth Date: June 1st

Teacher's notes

Objectives

Vocabulary Link and Learn

Prepared by

2009 1

7th Beethoven ‐ Functions in Organisms III Name

Oral Intervention

Coin

Chocolate

Ariana Gabriel Andrea Abraham Giacomo Fabiana Sinead Liliam Francesca Rodrigo C. Andres Stefano Jean Pierre Diego Rodrigo H. Luis Andrea Sebastián Ivanna Camila Carlos Aarón Paola Enrique Alessandra Irma Sophia Naomi Kiara Christopher

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7th Mozart‐ Functions in Organisms III Name

Oral Intervention

Coin

Chocolate

Nicole Luis Luciana Antonella Valeria Ch. Valeria C. Analucía Camila Franco Ramiro Sara Alicia José Luis Sergio Roberto Giancarlo Fiorella Gabriela Steffano Javier Diego Luis Fernando Sebastián Julio Sherley César Vilma Alessandra V.

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Let's remember previous learned concepts...

2008 ‐ Term I ‐ Class 8 ‐ 6th Grade ‐ Science Animal Growth and Heredity

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Life Cycle • All living organisms go through stages in their lives.

Example of stages: birth and dead.

• In between these two stages many or few changes happen.

• The process happens again in the next generation, and so on.

• A life cycle describes all the stages in a living organism’s development from one generation to the next.

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Reproduction • A cycle has no beginning and no end.

• However, in living organisms, the stages include birth, and later, may include reproduction.

• Reproduction is a process that a living organism uses to produce more of its own kind.

• The changes between birth and reproduction varies from one organism to another.

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BIRTH • Many kinds of animals are born or hatch from eggs looking like their parents (reptiles), others (like butterflies and frogs) do not look at all like their parents.

• Those who do not look like their parents, will go through a series of morphological changes through time that will allow them to reach adulthood.

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Growth and Development • After birth, humans go through infancy and childhood, followed by adolescence and finally, adulthood.

• Many other kinds of animals develop into completely different forms as they grow through their life cycle, this is called metamorphosis.

• Examples: tadpoles develop legs and lungs while becoming frogs; butterfly larvae form a cocoon, from where a butterfly arises.

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How do animals reproduce?

• All animals reproduce, but not through the same way.

• Animals repoduce in two basic ways: sexually and asexually.

• Sexual reproduction occurs when a sperm cell from a male and an egg from a female join to make a fertilized egg.

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Asexual Reproduction • Asexual reproduction is much simpler, it doesn’t involve a sperm and egg.

• Many invertebrates use asexual reproduction to produce offspring.

• If a piece of a sponge falls off, it can grow into a new adult sponge, this is called regeneration.

• Others like anemones and sea corals reproduce asexually by splitting in half.

• Hydras, form a bud (budding) that falls off to become a new hydra.

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Life Span – Life Expectancy • An animal’s life cycle may include birth, youth, old age, and death.

• The time it takes for this to happen is called an animal’s life span.

• Life expectancy is the average amount of time an individual animal might live according to the conditions around it.

• Life expectancy is affected by conditions in the environment. Life span is not.

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K-W-L Chart What I KNOW about this topic

What I WANT to know about this topic

What I LERANED about this topic

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SURVEY If you want to contribute in improving your Biology class, click in the survey link:

Google Forms Term II ‐ 7th Biology ‐ Class 2

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Resources Used Slide Resource (Group)

Description

Origin

G1 ‐ 2 Image

Beethoven

http://bit.ly/Q7ggk

G1 ‐ 3 Image

Mozart

http://bit.ly/18LkW6

G1 ‐ 4 Animation Idea

Notebook Gallery

G1 ‐ 6 Images

Life cycle of Flies Life cycle of Frogs Life cycle of Humans Life cycle of Butterflies

http://tinyurl.com/njad6d http://tinyurl.com/b4rtp2 http://tinyurl.com/l5xlmf http://tinyurl.com/lwo6v2

G1 ‐ 7 Image

Orcas

Unknown

G1 ‐ 8 Images

Lizard hatching Giraffe birth

http://tinyurl.com/ynhm4y http://tinyurl.com/kos5qd

G1 ‐ 9 Image

Monarch butterfly

http://tinyurl.com/lftf3y

G1 ‐ 10 Images

Binary Fission Sperm and Egg

http://tinyurl.com/lfdcov http://tinyurl.com/m6sbd4

G1 ‐ 11 Images

Budding Yeasts Paramecium splitting Hydra reproduction

http://tinyurl.com/lwgbdn http://tinyurl.com/mb9mrp Unknown

G1 ‐ 13 Images

Liffe Span Cartoon Life Expectancy 1 Life Expectancy 2

http://tinyurl.com/mxe3ve http://tinyurl.com/ndunde http://tinyurl.com/ku833k

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Teacher's Notes This class has been designed to cover the topics of Functions in Organisms III: Reproduction and Growth from Monday June 1st till Friday June 5th.

For further knowledge about this topic: 1. Conduct a thorough search under the topic: Reproduction and Growth on the Web, books and magazines.

2. If findings are not specific, ask your teacher for suggestions.

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Objectives • Understand the systems’ functions in living organisms.

• Understand the Life Cycle.

• Identify and describe the types of reproduction.

• Compare and contrast the reproduction types in humans and other organisms.

Note: All, or most, of the objectives will be covered during class time, however the student must be responsible for those objectives not covered or concluded.

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Vocabulary • • • • •

Life Cycle: Reproduction: Life expectancy: Sexual reproduction: Asexual reproduction:

Note: Most of the vocabulary words will be covered during class time, however the student must be responsible for those words not covered or concluded.

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Link and Learn You can visit the following websites to improve your understanding on the present topic: • http://science‐learning2009.wikispaces.com • http://learningandscience.blogspot.com • http://libraryatstgeorge.blogspot.com

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Prepared by

Gerardo LAZARO Science Lead Teacher Email: glazaro@sanjorge.edu.pe Wiki: http://science‐learning.wikispaces.com Blog: http://learningandscience.blogspot.com Twitter: http://twitter.com/glazaro

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