A blastomere is a _____ and a blastocyst is _____
A) hollow ball of cells; a cell resulting from cleavage
B) fetal organ produced by cleavage; an embryonic organ produced by cleavage
C) cell produced by cleavage; a hollow ball of cells
D) fetal membrane; an embryonic membrane
C
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Prostaglandins are ________.
A. long-range hormones B. formed slowly C. limited in function D. produced by many body tissues
Which of these cell types produce and help circulate cerebrospinal fluid?
A) astrocytes B) microglia C) ependymal cells D) Schwann cells E) oligodendrocytes
Outline the main events of the phases of the uterine (menstrual) cycle
What will be an ideal response?
The figure illustrates muscles of the thorax and abdomen. Which structure is indicated by "C"?
A. Linea alba B. Rectus abdominis C. Internal oblique D. External oblique E. Serratus anterior