Examlex
Place the layers and geologic events in order from oldest to youngest.Make sure to include all of the layers and events,including the top surface.(There will be one event/layer per line when complete.)
Genomic Imprinting
An epigenetic phenomenon by which certain genes are expressed in a parent-of-origin-specific manner, affecting the phenotype of an organism without altering the DNA sequence.
David Haig
An evolutionary biologist known for his work on genetic conflict, parental investment theories, and the evolutionary origins of genomic imprinting.
Placenta
A temporary organ that connects the developing fetus to the uterine wall to allow nutrient uptake, thermo-regulation, waste elimination, and gas exchange via the mother's blood supply.
Eurasian Penduline Tit
A small passerine bird known for its unique breeding behavior and the elaborate nests built by males to attract females.
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