Answer:
the heart is the main function
Answer:
C
Explanation:
when there is limited food, then natural selection will occur
Jobs- they have different jobs.
Answer:
Kenji must conduct a scientific investigation for a science project. Which step should Kenji complete first?
Develop a testable question based on research or prior knowledge.
Explanation:
scientific method
Answer:
To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.
Explanation:
