Ecology exam questions

• Why are Food chains limited in length

  Because large amounts of energy is lost at each trophic level
• Why are there competitions between members of a species

  Resources are limited
• what term explains part of the earth where life can exist

  biosphere
• living factors that have an effect on an ecosystem- definition

  biotic
• ecosystem

  Clearly distinguished organism that interact with their environment
• habitat

  place where plant or animals live
• niche

  the functional role of an organism in a habitat