Amazing Euks! Flashcards

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Flashcards for Unit 4 Lesson 6: Amazing Euks!

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18 Terms

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Chromatophores

Pigment-containing cells regulated by muscles under conscious control in cephalopods for camouflage or signaling.

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"Active" sleep state

Dynamic shifts in color pattern and skin texture, rapid eye movements (akin to our REM sleep) in octopuses.

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"Quiet" sleep state

Uniformly pale, closed pupils in octopuses.

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Mimic octopus

Can control its behavior and color pattern to mimic other models (ex: lionfish, sea snake).

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Iridophores

Cells containing transparent, reflective nanocrystals that chameleons use to change color in response to social cues.

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Enypniastes (headless chicken fish)

A sea cucumber that lives deep in the Gulf of Mexico and is transparent.

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Polychaetes (beardworms)

Marine segmented worms living near deep sea hydrothermal vents with no gut; mutualistic chemosynthetic bacteria supply worm with organic food molecules.

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Xerophytes

Plants adapted to arid (dry) climates.

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Stomata

Pores for gas exchange recessed in crypts to reduce exposure to wind in plants.

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Trichomes

Structures on leaves that reflect light and reduce leaf temperature; some can be sticky to deter herbivory.

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Succulent

Leaves and/or stems that store water.

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Carnivorous plants

Plants that obtain minerals (especially N) by capturing insects & other small animals.

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Cellular Slime Molds

Congregating mass of distinct cells; form fruiting bodies for sexual reproduction.

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Plasmodial Slime Molds

Large mass of “streaming” cytoplasm with many nuclei but no separating plasma membranes; form fruiting bodies for asexual reproduction.

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Karyogamy

The fusion of two cells, or of their nuclei, in reproduction.

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Plasmogamy

The fusion of the cytoplasm of two cells.

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Homology

Derived traits due to common ancestry.

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Analogy

Similar traits between organisms is due to convergent evolution.