'Daphnia' diaporamas de présentation

Effects of some space flight factors on survivorship in crustacean resting stages

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Dynamic Energy Budget Theory - I

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Complete burning of plant material returns carbon primarily to the A herbivores B water

After a volcanic eruption has covered an area with lava, which of the following is the most likely order of succession in the repopulation of the area? A lichens ?grasses ?shrubs ?trees B mosses ?grasses ?lichens ?trees C grasses ?trees ?mosses ?lichens D shrubs ?grasses ?trees ?lichens.

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Methods

Methods. Twelve planaria ( Dugesia dorotocephala ) are placed into a petri dish (10 mm in diameter). Individual Daphnia magna were observed using a microscope. A mortar and pestle, sand, and acetone were obtained to prepare the green algae ( Ulva sp.) for the experiment.

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OUTLINE 16 E. Violation of independent assortment 3. Crossing over 4. Chromosome mapping 5. Effects of linkage and c

OUTLINE 16 E. Violation of independent assortment 3. Crossing over 4. Chromosome mapping 5. Effects of linkage and crossing over on genotypic and phenotypic ratios F. Pleiotropy G. Violation of complete expression 1. Gene interaction - epistasis 2. Consequences penetrance

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Populations in Ecology

Lesson # 27. Populations in Ecology. ECOLOGY. It is the study of the interaction that living things have with each other and with their environment. Importance of Ecology. It provides the information base that society can use to make decisions about the environment . E C O L O G Y .

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Microscopic Organisms/Pond Life

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Ecological Receptors

Ecological Receptors. Aquatic biota Sediment organisms Aquatic plants Aquatic vertebrates (fish) Aquatic invertebrates (clams, crayfish, etc.). Ecological Receptors (cont). Terrestrial biota Soil organisms Terrestrial plants Terrestrial vertebrates (birds, mammals,etc.)

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Vernal Pools

Vernal Pools. What? How? Where? Why? . What is a vernal pool?. Vernal is derived from the Latin word for spring A vernal pool is a seasonal pool that is present in the spring and dries up in late spring or summer. February. March. June. November.

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Hydra

Hydra. Lesson 17 Notes. I. Basics. Freshwater organism Multicellular Tubular. Hydra Swimming. http:// www.youtube.com / watch?feature = player_detailpage&v =9MEt0Ot7Pkc. II. Structures. 6 tentacles around mouth Basal disc opposite mouth used to attach to surfaces/organisms 2 layers

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Interactions Between Genes and the Environment

Interactions Between Genes and the Environment. Genes are not the only thing that can affect the appearance of an organism, environment can play a large part. Cloned plants have shown huge variation in phenotype when exposed to different environmental conditions.

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Thermoregulation

Thermoregulation. SBI4U. Lesson Outline. What is thermoregulation? Negative Feedback Mechanisms Thermoregulation Daphnia Laboratory Preparation. What is thermoregulation?. The regulation of internal temperatures by negative feedback systems.

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The Hydra Lab

The Hydra Lab. Not the one from Hercules!!. The Cnidarian.

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Daphnia Heart Rate Lab

Daphnia Heart Rate Lab. Rise-Up. How do you measure heart-rate? Measure your heart rate with a partner, and record the results. .

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How does water pollution affect the heart rate and respiration rate of Daphnia (water flea)?

How does water pollution affect the heart rate and respiration rate of Daphnia (water flea)?. Movies Daphnia swimming on back Daphnia eye Daphnia appendages (breathing) Daphnia heart Daphnia side view Daphnia dying in ammonia pollution Daphnia eating Daphnia swallowing. Report

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Ch. 53 Exponential and Logistic Growth

Ch. 53 Exponential and Logistic Growth. Objective: SWBAT explain how competition for resources limits exponential growth and can be described by the logistic growth model. Exponential Growth. Unrealistic! Does not take into account limiting factors (resources and competition).

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Daphnia Toxicology Experiment

Daphnia Toxicology Experiment. Bridges 2014. Daphnia. Freshwater planktonic crustaceans C yclic parthenogenesis Favorable conditions: Asexual reproduction of females Unfavorable conditions: Sexual reproduction Reproductive maturity: 3-5 days Fine mesh feeders Eat bacteria and algae

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Daphnia Toxicology Experiment

Daphnia Toxicology Experiment. Bridges 2014. Daphnia. Freshwater planktonic crustaceans C yclic parthenogenesis Favorable conditions: Asexual reproduction of females Unfavorable conditions: Sexual reproduction Reproductive maturity: 3-5 days Fine mesh feeders Eat bacteria and algae

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FORAGING

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