Symbiosis

Copyright ? 2005 Pearson Education, Inc. publishing as Benjamin Cummings Chapter 37 Plant Nutrition Copyright ? 2005 Pearson Education, Inc. publishing as Benjamin Cummings Nutritional requirements of plants ? Plants derive most of their organic mass from the CO2 of air ? also depend on soil nutrients such as water and minerals ? classic experiments by Jean-Baptiste van Helmont & Stephen Hales ? nitrogen acquired mainly as nitrate ions (NO3?) Copyright ? 2005 Pearson Education, Inc. publishing as Benjamin Cummings Essential Elements ? more than 50 chemical elements found in inorganic substances in plants ? not all of these are essential ? chemical element is considered essential if it is required for a plant to complete a life cycle

Living in the Environment 16th Ed. : Ch.5 Key Terms

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Environmental Science

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behavior

Ecology

Biological interactions

Interspecific competition

Ecological succession

Parasitism

evolution

Environment

Chapter 5 age structure A population?s age structure?the proportions of individuals at various ages?can have a strong effect on how rapidly it increases or decreases in size. biotic potential Species vary in their biotic potential or capacity for population growth under ideal conditions. carrying capacity (K) Together, biotic potential and environmental resistance determine the carrying capacity (K): the maximum population of a given species that a particular habitat can sustain indefinitely without being degraded. coevolution

flower anatomy full answers

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Ian Konrad 4-23-14 LEH Mrs. Guido Flower Anatomy Activity 1a. Record the number of sepals observed in your flower specimen and give 1 function. There were 12 sepals on my flower. One function of the sepals is to protect the flower while it is forming a bud. 2a. Record the number of petals - what advantage do colorful petals provide for the flower? There were 6 petals on my flower. Colorful petals attract pollinators such as bees to come and pollinate the flower. 2b. Why are sepals considered accessory parts of the plant? Sepals are considered accessory parts of the plant because they are not directly involved in pollination. 3a. Record the number of stamens and give 1 function.

anatomy of a flower full answers

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Biology

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Ian Konrad 4-23-14 LEH Mrs. Guido Flower Anatomy Activity 1a. Record the number of sepals observed in your flower specimen and give 1 function. There were 12 sepals on my flower. One function of the sepals is to protect the flower while it is forming a bud. 2a. Record the number of petals - what advantage do colorful petals provide for the flower? There were 6 petals on my flower. Colorful petals attract pollinators such as bees to come and pollinate the flower. 2b. Why are sepals considered accessory parts of the plant? Sepals are considered accessory parts of the plant because they are not directly involved in pollination. 3a. Record the number of stamens and give 1 function.

Bio112 April 26th

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Biology

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Ecology

Symbiosis

Biological pest control

Antipredator adaptations

Mimicry

Bio 112

Bio 112, April 26 2013 Transition for competition to other aspects with in populations. EVOLUTIONARY RACE TO ARMS!!!! Evolutionary Responses -Predator- Prey interactions -Defensive adaptations of prey lead to offensive adaptations of predators -coloration, speed, eye sight, its a back and forth between these populations. -Red Queen Hypothesis (Leigh Van Valen) -evolving as rapidly as they can but not going anywhere. Stay in the same positions in the food chain. -Plant- Herbivore Interactions -Passive defenses -Chemical defenses that plants have in place all the time. Toxic!!! bad taste. -Lower population, be a rare species. -be habitat colonizers, rapid growth and re-populate new areas only. -Physical defenses, such as thorns.

Vocabulary

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Environmental Science

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Ecology

Environmental Science Vocabulary ? Living Things in the Environment & Populations organism - a living thing habitat - an environment that provides the things an organism needs to live. biotic factor - a living part of an organism?s habitat. i.e. grass, plants, seeds, fruit, worms, bacteria, other animals abiotic factor - a non-living part of an organisms habitat. i.e. water, sunlight, oxygen, temperature, soil photosynthesis - the process in which plants use water along with sunlight and carbon dioxide to make their own food. species - a group of organisms that are physically similar and can produce offspring. population - all the members of one species in a particular area. The ?count? of one species in an area.

Fungi Problem Set

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Biology

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fungi

Fungus

Hypha

Christina Krucylak Fungi Problem Set AP Biology April 2, 2013 Fungi are heterotrophs and therefore cannot make their own food, like plants can. They absorb nutrients from the outside environment. They use enzymes to either breakdown complex molecules into simpler ones for easier absorption or to break down cell walls or membranes to absorb nutrients from a host. Fungi have a wide range of ?hosts? and they can range from parasitic relationships to mutualistic ones. Hyphae are a network of tubular membranes surrounding the plasma membrane and cytoplasm of cells. This network is both above and below ground. A mycelium is more or less the subterranean part of a hyphae tube network. A mycelium infiltrates the material on which the fungus feeds off of.

AP Biology Notes on Ecology

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Ecology

Aquatic ecology

Biological oceanography

Biological interaction

Ecological succession

Environment

AP Biology; Ecology

UNIT 15 - ECOLOGY List of Terms Ecology: study of interactions of organisms with their environment and with each other Population: group of individuals of one species in one area that can breed and interact with one another Community: all the organisms in one area Ecosystem: All the organisms in an area and abiotic factors in that area Abiotic factors: nonliving, include temperature, water, sunlight, wind, rocks, etc. Biosphere: global ecosystem Biotic potential: max rate at which a population can increase under ideal conditions Influenced by factors like age at which reproduction begins, lifespan during which you can reproduce, # of reproductive periods in lifetime, and the max # of offspring the organism can produce