Evolutionary Perspectives on Health and Disease

Running head: EVOLUTIONARY PERSPECTIVES ON HEALTH AND DISEASE
EVOLUTIONARY PERSPECTIVES ON HEALTH AND DISEASE
Name of the Student:
Name of the University:
Author note:

1EVOLUTIONARY PERSPECTIVES ON HEALTH AND DISEASE
Answer 1)
1a) 50%.
1b) 25%
1c) 100%
1d) 50%
Answer 2)
Principle of variation- The theory of natural selection deals with the phenotype of an
organism that result in variation in the population of the gene or alleles. In principle of
variation, the inbreed population of an organisms changes or modify with time and
requirement. According to the principle of variation, there is a significant change in
appearance and body size of the ancestors over time and these changes or variation is
required for the survival in the changing surrounding (Williams, 2018).
Principle of inheritance- The principle of inheritance deals with the alleles or genes that
must be inherited by the future off springs. These characters or traits in the ancestors are
influenced by the changing surrounding and environmental situation (Smith & Winterhalder,
2017). In the present generation, the variation in appearance of different individuals’ is due to
this inheritance but we do share a common ancestral gene such as chimpanzee is considered
as the common ancestors of human beings.
Principle of adaption- Principle of adaption deals with the concept of survival of fittest. The
continous changing environment, space and depletion of resources has lead to the major
variation in situation hence the principle of variation help the organism to reproduce and
survive (Green, 2015). Hence, thits principle allows the organism to get accosutmed in the

2EVOLUTIONARY PERSPECTIVES ON HEALTH AND DISEASE
chnaging environment and adapt themselves in such condition making them fit enough to
survive.
Answer 3)
Theory of evolution states that we can cooperate with our kin and it is even beneficial
for us. The altruistic behaviour of animals with their relative is sue to the concept of kin
selection. With increasing relatedness the chance or probability of altruistic behaviour also
incresaes. In modern society, people tend to less contact their relative but the care and
concern is still present and tends to benefit an individual (Jones, 2015). Even in such cases,
the kin selection theory is relevant and benefit n individual. The organsim who are related to
each other tends to give benefit. Altruistic gene is responsible for the trait of care towards
their relative thus increasing the probability of care gene in between the relative members.
Natural Selection is responsible for the trait of altruistic genes, which train an animal to harm
themselves but increase the fitness and care in their relative.
Answer 4)
4a) Human behavioural ecology
4b) Cognitive psychology
4c) Human behavioural ecology
4d) Evolutionary psychology
Answer 5) The behaviours considered for the measure of parental investment are as follows:
a) Bresatfeeding a child
b) Storing of fat necessary to have a child
c) Attachment or bonding between parents and infants