Need with a worksheet. 15-25 i’m stuck

15) Homologus Pairs

16) Sister Chromatid

17) Identical Copies

18) Dissolves

19) Tetrad

20) Center

21) Anaphase

22) 2, Telophase

23) Cytokinesis

24) Haploid

25) Diploid

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.