Why is it argued that speech is only possible in modern homo sapiens and not in homo erectus or homo neanderthalensis? the brain wiring is not set up properly the capacity for language may be innate homo sapiens is the only species with a large enough oral cavity and a low enough larynx to allow for speech production. the areas for speech and sound recognition are not developed in other primates?

Explain why in any given geographical region, women tend to have lighter skins( by 3-4% on average) than men?

Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marla’s complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.

The green colored pigment in chloroplasts is? a. nitrogen b. chlorophyll c. chlorophorm d. chlorofloromethane