BIOL 371 Lecture Notes - Lecture 6: Elysia Chlorotica, Photosynthesis
9 May 2018
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• Do this by breaking bonds
▪ Photosynthetic animals
• Elysia chlorotica
o Retain chloroplasts in their digestive system from plants
that they eat
• Spotted salamanders
o Lay eggs surrounded by a jelly coat
o Incorporate green algae in this coat
o GA produces oxygen, which is in symbiotic relationship
with the eggs
o Takes up carbon-dioxide produces by the eggs, uses it to
photosynthesize
▪ Mobility (in plants)
• Photoautotrophs with cell walls
• Do’t eed to ove to auie eegy ad ao
o No selective pressure to do so
o Lack of motility is not a disadvantage
• But plants can move in several ways
o Grow up or down or laterally
o Phototrophic
▪ Move in response to light by growing
o Move in response to physical stimuli
o Disperse by pollen seeds
o Can utilize the mobility of animals to help them disperse
these
▪ Mobility (in animals)
• Chemoheterotrophs
o Eat things to acquire energy and carbon
• Diversity of plants and animals
o Classified or grouped based on interferences of evolutionary relatedness
o Genetics
▪ DNA evidence
o Morphology
o Physiology
o Behaviour
o Heritable traits
• Animal diversity
o Overview of animal phylogeny
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