The division of the zygote into two blastomeres occurs during

A) cleavage.
B) implantation.
C) placentation.
D) embryogenesis.
E) fertilization.


A) cleavage.

Anatomy & Physiology

You might also like to view...

The first system to be visually evident is the

A. muscular system. B. nervous system. C. skeletal system. D. cardiovascular system.

Anatomy & Physiology

Substrate-level phosphorylation takes place in the ribosomes of cells, whereas oxidative phosphorylation takes place in mitochondria.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

The muscle attachment to the more stationary bone is called the:

a. origin b. insertion c. tendon d. bursae

Anatomy & Physiology

During filtration in the nephron, substances move ________

A) from the afferent arteriole into the glomerulus B) from the nephron into the peritubular capillary C) from the peritubular capillary into the nephron D) from the glomerulus into the nephron

Anatomy & Physiology