Which of the following is true of a human karyotype? a. each cell has 22 pairs of homologous chromosomes b. each cell has one pair of sex chromosomes c. the chromosomes are numbered in order from 1 to 22. d. all of the above are true.

Need the diagram below, which is not drawn to scale, shows the position of the earth, moon, and sun. what type of eclipse occurs when the earth, moon, and sun are lined up in the order shown? a. planetary eclipse b. solar eclipse c. martian eclipse d. lunar eclipse