Answer:
Number of chromosomes
Explanation:
Meiosis is a specialized type of cell division in which the gametes are produced.
A diploid parent cell first replicates its DNA. Then, two rounds of cell division occurs to produce 4 haploid cells, each with half the amount of chromosomes. These gametes fuse during fertilization to restore the diploid state.
Therefore, meiosis changes the number of chromosomes.
Answer:B. Phosphorus cycle, because it is a biogeochemical cycle and does not involve the atmosphere
Explanation:
D. There is not a point where the car doesn't move because the line didn't go flat at all so the car kept moving.
C. The velocity is postive
B.The average velocity is 50m/2sec
A.The graph tells us that the car didn't stop moving and the car didn't make kept moving forward it didn't go back
Salt water is denser than cold water because fresh water sinks when it is in salt water.
1)acid rain 2)global warming 3)ozone depletion 4)industrial pollution 5)deforestation 6)water pollution
