The Acheulean hand ax, shaped like a teardrop, represents a predetermined shape based on a template in the mind of the toolmaker. Evidence for such a mental template in the archaeological record suggests a cognitive leap between earlier hominins and H. erectus. a) trueb) false

This is a True statement.

Explanation:

Acheulean is a tool made up of stone. The tool appears in distinctive oval and pear-shape. It is commonly used as "hand-axes" in olden days.

Acheulean hand ax is made by the ancestors of hominin family. It is used as a tool for scavenging and cutting. The axes are flaked to make it sharp at the edges. This tool was also used in cutting plants, digging the soil and butchering purposes.

Archaeological department suggests that the ax was in use between earlier hominins and H. erectus.

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.

"harry t. moore (1905-1951) – civil rights activist, leader, and the first martyr of the civil rights movement. fannie lou hamer (1917–1977) – leader in the american civil rights movement; co-founder of the national women's political caucus and freedom democratic party. james farmer (1920–1999) – congress of racial equality."