Answer:
Trilobites
Explanation:
The Phanerozoic Eon is characterized by the presence of organisms that possessed hard shells as an adaptation to the environmental conditions. Among these organisms, the most common hard-shelled animals were the trilobites.
Trilobites were present during most of the Paleozoic Era, which belongs to the Phanerozoic Eon. These animals were marine organisms with remarkable and unique phenotypes.
The body of a trilobite was composed of three segments: the cephalon, the thorax, and the pygidium (tail). In addition, they possessed an exoskeleton composed of chitin, which was the reason behind their hard shells. They shed their exoskeletons to be able to grow.
Trilobites are currently extinct.
The unemployment rate went as high as 24.9% during the great depression.
In a kinship system with matrilineal descent, a man inherit his rights to land and clan wealth from mother's brother.
What is Kinship system?
The pattern of culturally accepted interactions amongst family members is referred to as the "kinship system." In certain cultures, matrilineal descent uses the maternal line of relationships between mothers and their offspring to identify membership in the kinship group. One of the basic organizing tenets of human civilization is this. Based on kinship through marriage, adoption, or bloodlines. Kinship refers to the relationship that exists between two people based on a marriage or blood relationship. The use of kinship sets rules for interactions between members of certain social groups. It outlines suitable and appropriate role relationships. As a result, it controls social life.
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Answer:
tests are timed and processing speed decreases with age, complicating interpretations.
Explanation:
Madam C. J. Walker (1867-1919) was lauded as “the first black woman millionaire in America” for her successful line of hair care products.