B. Had larger brains. E. made stone tools . The Homo Sapiens were the earliest humanlike creatures. Based on archaeological and anthropological evidence shows that Homo Sapiens is part of a group among hominid family.
The theories with science and technology shows why early hominids evolved The aridity hypothesis, suggests that early hominids were more suited to dry climates and evolved as the African dry savannah regions expanded that's why they had to go to find suitable places.
Answer:
Retrospective cohort study
Explanation:
A cohort study is the study where people are grouped according to the factors they have been exposed to. The cohort is the group.
A retrospective cohort study is the study where the cohort who has been exposed to certain factors is compared with another cohort who has not been exposed to the factors that the first cohort has been exposed. This study is a long term study.
Here, the people's health of those that have been exposed to benzene will be compared to the the people who have been working there after 1970.
Hence, here a retrospective cohort study will be done.
The destruction of the Japanese cities of Hiroshima and Nagasaki by American atomic weapons in August 1945 began an arms race between the U.S. and the Soviet Union during the Cold War.
Answer:
The correct answer is:
Sensorimotor stage.
Explanation:
According to the theory of cognitive development proposed by the psychologist Jean Piaget, the human being goes through certain stages during evolution and growth from birth. He explains that during the Sensorimotor stage that goes approximately from birth to the age of 2, children develop a familiarity with their surroundings through the motor processes, that is to say the ones that are related to the movement, around them using their senses for such perception of the environment.
Therefore in this case, the child would be in the early sensorimotor stage when he has not yet developed completely his abilities to understand the movement of the train and simply loses interest.
