Gamates cells have half the chromosomes
plants give off oxygen and take in carbon dioxide and animals take in oxygen and give off carbon dioxide.
Answer:
Air is a matter
Explanation:
Matter is anything that has mass and takes up space. So, in order to prove that air is matter, we need to prove that air has mass and takes up space. It's easier to prove that air takes up space, so let's do that part of the problem first.
Get a balloon and inflate the balloon with air. The balloon get larger as you put air into them. The only way that air could make them get larger is if air takes up space.
Also the balloon can be weight before air is added and after addition of the air. The weight will be much after adding air
More elephant seals and peguins would be eating (killing) the squids. Also it might not realy change at all because the squid has much more krill and small animals to eat.
Answer:
Our breath being absorbed by the atmosphere and dumped back down in the form of rain or snow
