Multicellular organism

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Archaea

Domain

cell

bacteria

Prokaryote

Introduction: Themes in the Study of Life Chapter 1 Overview: Inquiring About Life An organism?s adaptations to its environment are the result of evolution For example, the ghost plant is adapted to conserving water; this helps it to survive in the crevices of rock walls Evolution is the process of change that has transformed life on Earth ? 2011 Pearson Education, Inc. Figure 1.2 Biology is the scientific study of life Biologists ask questions such as How does a single cell develop into an organism? How does the human mind work? How do living things interact in communities? Life defies a simple, one-sentence definition Life is recognized by what living things do ? 2011 Pearson Education, Inc. Figure 1.3 Order Evolutionary adaptation Response to the environment

algaefungi

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Volvox

Asexual reproduction

Isogamy

Bio104 Laboratory ? Student?s Guide John Jay College, C.U.N.Y Lab #5 ? Page 1 Lab #5: Green Algae, Fungi, and Lichens I. More Protista a. Continuing from last week, this will lab will explore the Domain of Eukarya. Remember that the group of organisms commonly called ?protists? is not an actual taxon ? it?s a collection of many phyla. b. Some of the protists that we will examine today are the green algae. These single-celled organisms have a common ancestor with plants, and present-day algae share many features with the ancestor of plants. All green algae are technically unicellular organisms, but some form colonies with an impressive degree of organization.

algeafungi

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Volvox

Asexual reproduction

Isogamy

Bio104 Laboratory ? Student?s Guide John Jay College, C.U.N.Y Lab #5 ? Page 1 Lab #5: Green Algae, Fungi, and Lichens I. More Protista a. Continuing from last week, this will lab will explore the Domain of Eukarya. Remember that the group of organisms commonly called ?protists? is not an actual taxon ? it?s a collection of many phyla. b. Some of the protists that we will examine today are the green algae. These single-celled organisms have a common ancestor with plants, and present-day algae share many features with the ancestor of plants. All green algae are technically unicellular organisms, but some form colonies with an impressive degree of organization.

Protista Notes

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Protist

19.1: Protists The World of Protists What is a Protist? Kingdom Protista contains the most diverse group of organisms of all kingdoms Most are unicellular (diatoms), but some are multicellular (giant kelp). Some are heterotrophs, some are autotrophs and others are both. The characteristic that all protists share is that they are eukaryotes Protists are divided into animal-like protists, funguslike protists and plantlike protists. Protozoa: animal-like protist, all are unicellular Algae: plant-like protists, do not have roots, stems and leaves Unicellular algae produce most of the world?s oxygen and are the basis for aquatic food chains Fungus-like protists are able to move at some point in their life and do not have chitin in their cell walls What is a protozoan?

Campbell Biology Chapter 28

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Protist

Chapter 28- Protists Overview: Living Small Protist- the informal name of the group of mostly unicellular eukaryotes Protists constitute a polyphyletic group, and Protista is no longer valid as a kingdom caused by systematics. Molecular data shows there is genetic diversity. Concept 28.1: Most eukaryotes are single celled organisms Protists are eukaryotes most are unicellular, but there are some colonial and multicellular species Protists are the most diverse of the eukaryotes Single celled protists can be very complex, as all biological functions are carried out by organelles in each individual cell don?t see the division of labor like in multicellular eukaryotes, every single cell has all the organelles a protist needs to survive

Chapter 1 PPT (7TH EDITION)

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Zoology

Inquiring About the World of Life Biology is the science of life Traditionally divided into three divisions: - Botany - Zoology (NOT Zoo-ology!) - Microbiology 3 Modern Biology Many diverse subdivisions, such as: - Wildlife Biology - Cellular Biology - Anatomy & Physiology - Ecology - Genetics - Evolutionary Biology - Molecular Biology - Developmental Biology - Immunology - Behavioral Ecology - Marine Biology 4 - asking questions and seeking science-based answers The central activity of biology: scientific inquiry Biologists ask questions such as: how a single cell develops into an organism - how the human mind works - how living things interact in communities Biology is therefore a quest ? an ongoing inquiry about the nature of life

Cycles of Life Teacher Guide 1st 6 episodes

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Species

Fossil

Ecology

reproduction

Charles Darwin

organism

Cycles of Life: EXPLORING BIOLOGY Module 1: Biological Concepts Segment 1: The Unity and Diversity of Life Objectives: 1. List and describe major characteristics of living things that distinguish them from non-living matter. 2. Describe the general pattern of energy flow through the earth?s life forms, and explain how their interactions help cycle the earth?s resources. 3. Explain what is meant by the term unity, and identify possible causes of similarities between earth?s organisms. 4. Explain what is meant by the term diversity, and identify possible causes for the great diversity of life forms on earth. Video Synopsis: Beginning with the features that distinguish living matter from non-living matter, this segment provides

Chapter 1 Introduction to Biology Lecture

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Species