Dr. Patel is conducting a study to test a hair-growth shampoo she is developing. She instructs fifty participants to use the hair-growth shampoo once daily for a month and another fifty to use a regular shampoo once a day for a month. Dr.
Patel measures the participants' hair length at the beginning and the end of the thirty days. Which of the following is
the dependent variable?

Drivers must always yield to emergency vehicles traveling

The biome pictured above is found in areas such as kenya and south africa. the land is grass-covered with very few trees and gazelles and other grazers are common here. why does this biome have a low population of trees? a) large grazing animals destroy the trees. b) it is a deforested rainforest with poor soil. c) it has high temperatures and low precipitation. d) it has a long rainy season followed by flooding.

Can someone ! who is the intended audience for cortés—general description of tenochtitlán i need to fill out a hap-p chart pleaaasse