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This is an accepted version of this page This is the latest accepted revision, reviewed on 5 February 2025. Organisms living in water or air that are drifters on the current or wind This article is about the marine organisms. For other uses, see Plankton (disambiguation). Marine microplankton and mesoplankton Part of the contents of one dip of a hand net. The image contains diverse planktonic ...
A Korbnetz, one of several inventions by Hensen to collect plankton. Hensen went to school in Schleswig from 1845 to 1859 and then joined a grammar school in Glückstadt (Holstein) after which he joined to study medicine at the universities of Würzburg, Berlin (studying under Müller) and Kiel.
Ethnic classifications vary from country to country and are therefore not comparable across countries. While some countries make classifications based on broad ancestry groups or characteristics such as skin color (e.g., the white ethnic category in the United States and some other countries), other countries use various ethnic, cultural ...
This is a list of the 50 U.S. states, the 5 populated U.S. territories, and the District of Columbia by race/ethnicity. It includes a sortable table of population by race /ethnicity. The table excludes Hispanics from the racial categories, assigning them to their own category.
Racial and ethnic demographics of the United States in percentage of the population. The United States census enumerated Whites and Blacks since 1790, Asians and Native Americans since 1860 (though all Native Americans in the U.S. were not enumerated until 1890), "some other race" since 1950, and "two or more races" since 2000. [2]
A number of prominent companies have scaled back or set aside the diversity, equity and inclusion initiatives that much of corporate America endorsed following the protests that accompanied the ...
Microplastics were detected in almost every seafood sample found off the coast of the western U.S. in a recent study. The particles were found in the edible tissue of six different species of fish.
The United States has a racially and ethnically diverse population. [1] At the federal level, race and ethnicity have been categorized separately. The most recent United States census recognized five racial categories (White, Black, Native American/Alaska Native, Asian, and Native Hawaiian/Other Pacific Islander), as well as people who belong to two or more of the racial categories.