Cell
Tissue
Organ
Organ System
Organism
Answer:
The number of chromosomes in sex cell must be haploid (1n) as compared to body cell which is diploid(2n).
Explanation:
Body cells are diploid while the sex cells are haploid. We can say that sex cells contain half number of chromosomes as compared to body cells.
That students who study make better grades than those who do not.
Answer: gas in the air, pollution
Explanation:
