inoculated by people and surroundings; no two are the same; lives on us at all times‚ harder to wash away than transient flora symbiotic relationship – two or more organisms living together (fungus and algus=lichen) Mutualism - all benefit (E. Coli makes vitamin K) Commensalism – one benefits‚ the other is not harmed (cattle‚ birds‚ grass) Parasitism - one benefits‚ the other is harmed (worms or protozoan‚ virus)
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INTRODUCTION Levels of organization (cell to biosphere) and characteristics of life Levels: Cells->tissue ->organs & organ systems->organisms->populations->communities->ecosystems-> biosphere Characteristics of life: Cell and Organization: Each cell can only do the job it is tasked with. Example: brain cells Energy Use and Metabolism: Energy is needed many organisms. Energy is utilized in chemical reactions Response to Environmental Changes: responds to stimuli Regulation and Homeostasis: ex:
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and are present in most habitats on the planet‚ growing in soil‚ water‚ acidic hot springs‚ radioactive waste‚ and deep in the Earth’s crust‚ as well as in organic matter and the live bodies of plants and animals‚ providing outstanding examples of mutualism in the digestive tracts of humans‚ termites and cockroaches. Bacteria constitute a large domain of prokaryotic microorganisms(organisms whose cells lack a cell nucleus which contains most of the cell’s genetic material‚ organized as multiple long
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High School Biology - Core Concept Master Cheat Sheet Biology‚ 1 of 6 01: The Science of Biology 03: The Cell • Characeristics of life Organization: all lives are well organized Energy use: all lives need energy to support Reproduction: all lives should be able to reproduce itself Growth: all lives grow and develop. Response to stimuli: all lives can respond to internal or external stimuli Homeostasis: all lives have the ability to maintain a relatively stable internal environment—self-regulation
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shelter or a mate occurs between any living organisms in a mutual habitat. They are likely to be in close proximity and this interaction could either be harmful or helpful to each organism. When the interaction is beneficial‚ it is considered to be mutualism‚ either being obligate or facultative. However‚ interactions between different species may take different forms‚ such as commensalism‚ parasitism‚ amensalism etc. Competition often results in reduced growth and/or lower seed production of one or
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Genetics: the science of heredity that includes the study of what genes are‚ how they carry info‚ how they are replicated and passed to subsequent generations of cells or passed between organisms‚ and how the expression of their info within an organism determines the particular characteristics of that organism. Genome: the cell’s genetic information that includes it’s plasmids and chromosome. Chromosomes: structures containing DNA that physically carry hereditary info‚ contain the genes Genes:
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Termites are a group of eusocial insects that‚ until recently‚ were classified at the taxonomic rank of order Isoptera (see taxonomy below)‚ but are now accepted as the epifamily Termitoidae‚ of the cockroach order Blattodea. While termites are commonly known‚ especially in Australia‚ as "white ants‚" they are only distantly related to the ants. Like ants‚ some bees‚ and wasps—which are all placed in the separate order Hymenoptera—termites divide labour among castes‚ produce overlapping generations
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Name: __________________________ BIOLOGY EOC REVIEW PACKET Scientific Method 1. Define the following: a. Independent Variable: the variable that I change in the experiment b. Dependent Variable: the variable that I am measuring (it depends on the independent variable) c. Control Variable: variable that stay the same d. Controlled experiment: an experiment in which only one variable is changed at a time e. Hypothesis: an educated guess (If…‚ then…) 2. You have measured the
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Name______________________________ Class __________________ Date ______________ Chapter 4 Ecosystems and Communities Section 4–1 The Role of Climate (pages 87–89) This section explains how the greenhouse effect maintains the biosphere’s temperature range. It also describes Earth’s three main climate zones. What Is Climate? (page 87) 1. How is weather different from climate? Weather is the day-to-day condition of Earth’s atmosphere at a particular time and place
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ORGANIC AND INORGANIC CONSTITUENT IN ESSENTIAL IN PLANTS AND NUTRIENTS REQUIRED TO PLANTS Organic constituent DEFINITION An organ‚ system‚ or other discrete element of an organism the part of the plant that carries out photosynthesis. EXPLANATION: The chemical compounds of living things are known as organic compounds because of their association with organisms. Organic compounds‚ which are the compounds associated with life processes‚ are the subject matter of organic chemistry. Among the numerous
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