general animal information
The phylum of a sea hare
what is mollusca/mollusks?
the method in which sea hares deter predators
what is they secrete a cloud of irritating purpe ink.
what are algae and eelgrass
list two animals commonly found in tide pools
what are sea stars, sea urchins, sea cucumbers, barnacles, sea anemones, octopus, sea snails, mussels, limpets, abalones?
the class for a sea hare
what is gastropoda/ gastropods?
the source of the purple color in ink secreted by sea hares
what is the color is due to photosynthetic pigment in red algae in sea hare diet.
List two predators of ADULT sea hares
what are starfish, lobsters, california Aglaia (sea slugs), and large sea anemones.
some challenges animal/plants face due to living in tidepools
what are animals could dryout, predation from birds, availability of water/essential nutrients depend on waves, could be washed out into the ocean, changing salinity due to rainfall, temperature when tide is low and small area of water is exposed to sun.
scientific name of the California sea hare
what is aplysia californica
2 advantages of sea hares ability to sense light and darkness
what is sensing lights and shadows allows them to avoid predators, and avoid coming out of water during daylight as to avoid drying out.
the change in the sea hare's diet as it ages
what is younger sea hares eat red algae in deeper water, adults eat eelgrass and tougher brown/green algae closer to shore.
what are two human-based threats to tidepool habitats
what are people that affect the environment through stepping on tide pool organisms/habitats, coastal development including pollution and runoff.
2 physical description of the sea hare
what is
have a soft body, small internal shell, have large wings (parapodias), lay eggs in long pink threads, are hermaphrodites, display chain mating, have two pairs of tentalces (one near mouth and one near eyes).
the method in which sea hares camouflage using color
what is sea hare coloring is determined by their diet of seaweed and algae, allowing them to blend in with their surroundings?
the number of eggs laid by sea hares typically, and why is the number so high?
what is sea hares lay up to 80 million eggs, most eggs are eaten by predators and juvenile sea hares are also often eaten by sea spiders
abundant sunlight (close to surace), constant wave action supplies nutrients and oxygen, protection from predators
the way sea hares eat, including where they find their food
what is sea hares eat by swimming or gliding over rocks, using their radula to feed on algae.
the two components that make up the sea hare's secretion during inking
what is a use of sea hares in terms of scientific research
what is sea hares are often used in labs to study neurobiology (learning and memory) due to its simple nervous systems made up of easily identified neurons.
list the 4 commonly recognized tidal zones
what are upper intertidal, mid intertidal, low intertidal and subtidal zones