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From fertilization through week 8, a developing fertilized egg is known as a ___________.

Which of the following is released from the posterior pituitary?

Duplicated chromosomes consist of two identical sister ______________ attached at their ______________.

The endocrine system is a more effective messenger system than the nervous system because unlike the nervous system, effects of the endocrine system:

In males ________causes Sertoli cells to release androgen binding protein to make them receptive to _________________.

The endocrine system is a more effective messenger system than the nervous system because unlike the nervous system, effects of the endocrine system:

Which of the following early development structures gives rise to the whole body?

Which of the following is NOT something PTH will cause?

Mitotic divisions of the zygote are known as

Define crossing over