Which observation BEST demonstrates Newton's first Law of Motion? A. A small rock thrown at a trashcan cannot knock it over, but a more massive rock thrown with the same
force at the same trashcan can knock it over.

B. A football thrown by an NFL quarterback has greater acceleration than a football you throw.

C. A book placed beside you in the back seat of a car slides to the floor as the car stops suddenly.

D. An astronaut weighs more on Earth than he does on the moon, but is mass does not change.

List two new traits (structural or behavioral) that each new species of rat might demonstrate as it adapts to the conditions on two of the four islands. choose only two islands that are described in the lesson. record the island latter and the major habitat feature of the island. then list two new traits each rat subspecies might demonstrate in order to survive the habitat on that island. note: new traits should be unique to that island and be in response to that island’s habitat feature. i cannot remember islands that were names in the lesson so only answer if you have done the lesson (5.13 life science 7b) choose 2 of the islands and describe a structural and a behavioral trait for a rat on each island so 4 total answers, 2 different structurals and 2 different behaviorals, one for each rat for each island

Researchers want to use edna to look for an invasive species in the water which of the steps would be likely do last

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.