Evolutionary/Sociobioligical Flashcards
Influenced by Darwin’s theory of evolution, it draws on findings of anthropology, ecology, genetics, ethology, and evolutionary psychology to explain the adaptive, or survival, value of behavior for an individual or species.
evolutionary/sociobiological perspective
introduced the concept of sociobiology as the application of evolutionary theory to social behavior.
E. O Wilson
View of human development that focuses on evolutionary and biological bases of behavior.
Evolutionary/sociobiological Perspective:
According to ______, species have developed through the related processes of survival of the fittest and natural selection
-Individuals with heritable traits fitted (better adapted) to their environments survive and reproduce more than those that are less fitted (less well adapted).
Darwin
through differential reproduction success, individuals with ____________________ pass on their traits to future generations at higher levels than individuals who are less adaptively fi t.
more adaptive characteristics
defined sociobiology as “the extension of population biology and evolutionary theory to social organization”.
- Sociobiology is based on the premise that some behaviors (social and individual) are at least partly inherited and can be affected by natural selection.
E. O. Wilson
or conception, is the process by which sperm and ovum-the male and female gametes, or sex cells- combine to create a single cell called a zygote, which then duplicates itself again and again by cell division to produce all the cells that make up a baby.
Fertilization
occurs when an egg from the mother is fertilized by a sperm from the father.
Conception
In humans, the conception process begins with _________, when an ovum, or egg (the largest cell in the human body), which has been stored in one of the mother’s two ovaries, matures and is released into the fallopian tube.
ovulation
Within several hours of conception, half of the 23 chromosomes from the egg and half of the 23 chromosomes from the sperm fuse together, creating a ________ — a fertilized ovum.
zygote
Once the zygote attaches to the wall of the uterus, it is known as the
embryo
is the fluid-filled reservoir in which the embryo (soon to be known as a fetus) will live until birth, and which acts as both a cushion against outside pressure and as a temperature regulator.
amniotic sac
an organ that allows the exchange of nutrients between the embryo and the mother, while at the same time filtering out harmful material.
placenta
links the embryo directly to the placenta and transfers all material to the fetus.
umbilical cord
Beginning in the ninth week after conception, the embryo becomes a
fetus