The formation of three germ layers is called Select one: a. gastrulation b. pluripotency c. differentiation d. neurulation

Egg and sperm cells are...   A. Gametes   B. Diploid   C. Somatic cells   D. Zygotes

Which of the following is true about Cleavage? Choose all possible answers   a. At the end of cleavage, a 32-cell zygote called morula is formed. b. The angle and timing of mitotic spindle influence the pattern of embryonic cleavage. c. Cleavage is a series of mitosis that happens after the formation of zygote. d. The yolk protein is essential in determining where cleavage can occur

During gastrulation, three germ layers form. All the cells, tissues, and organs in the body come from these germ layers. Match each germ layer to the system, organ, or structure it will form. 1. endoderm 2. mesoderm 3. ectoderm Liver Brain Heart Skin

Question1 Flagellum is a name for Answers A. the fringe-like folds move the egg down the fallopian tubes. B. the tail on the spermatozoa. C. the meiotic process for creating a gamete. D. the first stage of the menstrual cycle. Question2. Where is the urine formed? Answers A. bladder B. prostate C. nephrons D. renal pelvis Question3. The Loop of Henley is connected on each side by the Answers A. afferent arterioles. B. glomeruli. C. renal columns. D. proximal and distal convoluted tubules.

In humans, how many functional gametes are produced by spermatogenesis and oogenesis? Select one: a. Spermatogenesis Oogenesis One Four b. Spermatogenesis Oogenesis Four One c. Spermatogenesis Oogenesis Four Four d. Spermatogenesis Oogenesis One One

Which of the following does NOT happen in the germinal period? a. dividing mass of cells travels to the uterus b. developing organs can be affected by toxins passing through the placenta c. mass of cells form a hollow ball d. cells begin to differentiate.

Which of the following statements is false? a. Cadherins, but not integrins play a role in gastrulation. b. Gastrulation creates the primary germ layers c. Gastrulation requires cells to change their gene expression. d. Body axes are stabilized (made permanent) during gastrulation.

In the microscopy image above, the structure that remains after the mature ovum leaves the ovary is numbered Select one: a. 3 b. 1 c. 5 d. 2

The process by which the structure labeled B is released from the structure labeled A is known as? A. differentiation B. ovulation C. gastrulation D. germination