Answer:
The climate is getting warmer so all the ice caps and other cold laces on earth with ice are melting therefore the sea levels are rising
Explanation:
SAVE THE TURTLES SKSKSKSKSK
Im like 98% sure its B because ultra sounds hear the frequency's of the baby in the womb
About 11 to 15 days after conception the zygote attach to the uterine wall
Answer:
the type of molecule-destroying enzyme he used
Explanation:
Frederick Griffith and Oswald Avery were scientific researchers who discovered DNA. Frederick Griffith began the research and Oswald Avery continued his research in 1944 when they made the discovery of DNA. When Avery repeated Griffith's research the experimental variable in Avery's experiment was the type of molecule-destroying enzyme he used.