The seagulls and pelicans have what type of egg production?

self  egg production

Explanation:

The seagulls and pelicans produce their eggs through self egg production methods seagulls and pelicans are a type of birds that as with the popular chicken can also produce eggs through self egg production.

Self egg production is the ability of a bird to produce eggs without actually mating with the male i.e fertilization of the egg occurs inside the female bird. the seagulls lay their eggs in noisy, densely packed colonies  in a nest composed of vegetation in order to protect them from predators. Pelican can also self fertilize as well

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.