Some reflexes are theorized to exist because they have the survival
value. Sigmund Freud First to theorize that we pass through different stages, behaviour
is governed by the reflexes that we are born with, start to develop schemata,
but need to develop permanence.
Amoebozoans are now considered to be in the eukarya supergroup along with animals, after DNA analysis.
Nitrogen is from the atmosphere is converted into nitrates by nitrogen fixing bacteria such as rhizobium which is found in the root nodules of leguminous crops
