Smooth muscle of the gastrointestinal tract develops from what region of mesoderm?

What extraembryonic tissue is a repository for urinary waste in many vertebrates other than humans?   

SRY expression in which cell type drives testis development?

What changes occur in the endometrium to ensure that it is receptive for blastocyst implantation?

During the process of cortical neurogenesis, in what zone are neuroblasts generated, and migrate away from?  Choose the correct region (1-4) from the image below:

Which of the following is a histological characteristic of cardiac muscle?

During the process of cortical neurogenesis, in what zone are neuroblasts generated, and migrate away from?  Choose the correct region (1-4) from the image below:

What extraembryonic tissue provides a protective buffer against mechanical injury to the developing foetus?  

Neural crest cells developing from the trunk region:

From which of the following haematopoietic lineages are erythrocytes derived?