CROSS-WORD
Crossword
Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
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Check
Across:
2.
Group of cells which secrete hormones.
4.
These characters help to distinguish the male from the female
5.
The chemical substances secreted in the body.
6.
The period at which an organism attains sexual maturity.
7.
produces sperm
Down:
1.
These characters refer to changes in sex organs
3.
The protruding part of the throat.
OK