Question

1. fossils serve as tangible remnants that provide insights into:

a. ancient technologies
b. geological formations
c. historical civilizations
d. ancestors physical forms and behaviors

1. lucy, a partial skeleton found in ethiopia, revealed a bipedal creature living approximately how many million years ago?

a. 3.2 million
b. 2.7 million
c. 1.5 million
d. 4.6 million

1. what type of adaptation involves physical features or body structures in organisms?

a. behavioral adaptations
b. structural adaptations
c. environmental adaptations
d. physiological adaptations

Explanation:

1. Fossils are the preserved remains or traces of organisms from the past, which can tell us about the physical forms and behaviors of our ancestors. They are not mainly related to ancient technologies, geological formations (though they are found in them), or historical civilizations in the same direct - way as they are to ancestral biology.
2. Lucy, the famous partial skeleton found in Ethiopia, is estimated to be around 3.2 million years old. It is an important find in the study of human evolution as it is a bipedal creature.
3. Structural adaptations are the physical features or body structures in organisms that help them survive in their environment. Behavioral adaptations are related to actions, environmental adaptations are about the environment - organism interaction in a broader sense, and physiological adaptations are about internal body processes.

Answer:

1. d. Ancestors' physical forms and behaviors
2. a. 3.2 million
3. b. Structural adaptations