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mixotrophs
can consume other materials and can do photosynthesis like euglena, some are obligate and some facultative
what is a niche?
the role of a species in an ecosystem
describe examples of adaptations of plants for harvesting light
in the rainforest:
epiphytes
vines can climb up the trunk of the tree
lianas as vines which take root in the forest floor
large surface areas of leaves in the shrub layer to catch light
shade tolerant plants which do not need much sunlight
epiphytes (rainforest adaptation)
plants that get up the tree to access sunlight, such as orchids
whats the relationship between the diet of omnivorous and herbivorous hominidae and the dentition?
Omnivorous Hominidae:
Generalized dentition for varied diet.
Incisors (cutting), canines (tearing), and rounded molars (grinding plants and meat).
Herbivorous Hominidae:
Specialized dentition for plant-based diet.
Flat molars with high ridges (grinding fibrous plants).
Reduced or absent canines.
herbivore adaptations for insects
piercing and chewing mouth parts for facilitated digestion.
adaptations for mammal herbivores for feeding on plants
have specialized back teeth and their digestive systems are specifically adapted, bacteria are living in the rumen to digest the cellulose of grass
fundamental niche definition
the full range potential of environmental and social conditions under which an organism could potentially survive and reproduce (no competition or predators, ideal world—no negative factors, no ecosystem, only abiotic factors like tolerance limits)
realized niche definition
the specific set of condition under which an organism actually survives in an ecosystem, with the limitations of other species being present (predators, competitors and parasites present)
competitive exclusion squirrel example
The red squirrel are being eliminated by the grey squirrel because the grey are more adaptive and resistant to squirrel pox.
