Developmental (or ontogenetic) adaptation occurs at the level of the individual during a critical period of growth and development, childhood especially. The capacity to make the change is inherited, but the change is not inherited and is not reversible.
What are the stages of ontogenetic development?
Stages in Ontogenetic Development ° 1. Gametogenesis: process by which gametes are formed Spermatogenesis produces sperm in testes Oogenesis produces eggs in ovaries *Both spermatogenesis and oogenesis are accomplished by meiosis. ° 2. Fertilization: sperm meets and penetrates the egg and the two pronuclei fuse Egg and sperm are called pronuclei because they are haploid. Results in the ...
Can you have and example of developmental adaptation?
Developmental adaptation refers to the ability of an organism to modify its phenotype in response to environmental exposures over the course of growth and development. There are many examples of developmental adaptation within anthropology, including studies that evaluate the impacts of early life environments on phenotypes such as lung volume ...
What is developmental adaptation?
The concept of developmental adaptation is a powerful framework that can be used for understanding the origin of population differences in phenotypic and genotypic biological traits. There is great deal of information describing how developmental responses can shape adult biological outcomes.
What is the difference between an adaptation and adapting?
is that adaption is ( lb) the act of fitting; adaptation while adaptation is ( label) the quality of being adapted; adaption; adjustment. Other Comparisons: What's the difference? ( lb) The act of fitting; adaptation. ( label) The quality of being adapted; adaption; adjustment.
At what level does cultural adaptation occur?
refers to the homeostatic balance leading to bone mass being produced where it is needed and removed where it is not needed. Cultural adaptation: a. occurs at the individual level during childhood.
Which life event occurs during the senescence stage?
It has been shown that loss of membrane stability and integrity occurs as a key event during senescence. Disintegration of cellular structures leading to the loss of cell compartmentalization and collapse of tissue structures has been considered to occur during senescence.
What are cultural adaptations quizlet?
Cultural Adaptation. patterns of behavior that enable a culture to cope with its surroundings or when an individual modifies his/her customs to fit into a particular culture. Nomadic.
What is the human prenatal stage made up of quizlet?
Prenatal stage- which includes the three periods, or trimesters, of pregnancy and ends with birth (9 months after conception)------------------The postnatal stage-which includes the neonatal period (about the first month), infancy (the second month to the end of lactation, usually by the end of the third year), ...
At what age does senescence begin?
Senescence literally means "the process of growing old." It's defined as the period of gradual decline that follows the development phase in an organism's life. So senescence in humans would start sometime in your 20s, at the peak of your physical strength, and continue for the rest of your life.
What is a senescence quizlet?
What is the definition of senescence. • The process of decline in fertility and decline in probability of survival with age. • Most organisms in which germ cells are distinct from somatic tissues undergo senescence.
What does cultural adaptation mean?
Cultural adaptation is “the systematic modification of an evidence-based treatment (or intervention protocol) to consider language, cultural, and context in such a way that it is compatible with the client's cultural patterns, meaning, and values” (14).
What function does communication play in the cultural adaptation process?
Culture is passed along by the ability to communicate, which distinguishes humans from other organisms. As a result, unlike animals, humans do not have to start their development all over again with each generation.
During which stage of prenatal development are nearly all basic organs formed 2 points?
The embryonic stage lasts from the end of the germinal stage to two months after conception. The developing ball of cells is now called an embryo. In this stage, all the major organs form, and the embryo becomes very fragile.
During which stage of development does the zygote form and divide quizlet?
Begins at conception when the sperm and egg cells fuse in a fallopian tube. The fertilized egg (single-celled zygote) moves to the uterus. Cell division (lasts 14 days) begins 24 to 36 hours after conception. Through the process of mitosis, the zygote first divides into two cells, then into four, and so on.
What occurs embryonic stage?
During the embryonic stage, the heart begins to beat and organs form and begin to function. At 22 days after conception, the neural tube forms along the back of the embryo, developing into the spinal cord and brain.
When did seafaring travelers observe differences between people from distant lands?
can be traced to the Renaissance , when seafaring travelers observed differences between people from distant lands.
Is hypoxia a natural selection?
occurs at the individual level throughout an individual's lifetime. Hypoxia has been shown to be an agent of natural selection in that Tibetan women: a. with alleles for high oxygen saturation in their hemoglobin had fewer surviving children. b.
Do diaphyses grow but epiphyses stop growing?
the diaphyses continue to grow but the epiphyses stop growing.