Cooling a substance causes molecules to slow down and get slightly closer together, occupying a smaller volume that results in an increase in density
Answer: 3. in the icecaps. 2. temperature. 1. the second one
Explanation:
I think because they have a DNA
Answer:haemoglobin
Explanation:
Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.
Answer: Competitive
Explanation: They don’t hunt each other nor benefit from each other’s existence. Therefore, it’s most likely they compete for prey and survival.