Amazing Euks! Flashcards

Flashcards for Unit 4 Lesson 6: Amazing Euks!

Chromatophores

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

"Active" sleep state

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

"Quiet" sleep state

Uniformly pale, closed pupils in octopuses.

Mimic octopus

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

Iridophores

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

Enypniastes (headless chicken fish)

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

Polychaetes (beardworms)

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

Xerophytes

Plants adapted to arid (dry) climates.

Stomata

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

Trichomes

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

Succulent

Leaves and/or stems that store water.

Carnivorous plants

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

Cellular Slime Molds

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

Plasmodial Slime Molds

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

Karyogamy

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

Plasmogamy

The fusion of the cytoplasm of two cells.

Homology

Derived traits due to common ancestry.

Analogy

Similar traits between organisms is due to convergent evolution.