Rarely, two sperm may penetrate a secondary oocyte. Do youthink this fertilized cell will survive for long? Why or why not?

During the cleavage stage, this process takes the zygote from a single celled organism to multicellular morula.   Question 8 options:   Oogenesis   Spermatogenesis   Cytokinesis   Mitosis   Meiosis

At puberty, the testes contain a finite number of cells and producean enormous number of sperm cells during the life span of a male.Explain why testes do not run out of spermatogonial cells

What is your opinion of the status of an 8-celled human embryo? Why?

During spermatogenesis, which of the following options describes when cytokinesis would occur? Following anaphase I Following metaphase II Following telophase I Following telophase II

Which type of symmetry is associated with cephalization?Why is it important? What is usually associated with cephalization?

A sperm completes meiosis II, it's destiny is to first mature be released and then to meet the egg in the Fallopian tube. List all the anatomical structures it travels through to meet the egg.

Early human embryos have both male and female reproductive tissues but, by the time they are born, most babies have developed into either a male or female, anatomically. How does this happen? Explain the developmental sequence of the reproductive system organs in a normal, genetically male fetus.

Which plane would be helpful when viewing the heart and the right kidney at the same time?  whychose that plane and why the remaining planes would not be helpful when viewing these specific organs at the same time.  Enzymes are important during the process of fertilization. What would be the anticipated consequences if the level of acrosin was low or non-existent in the acrosome? What is the name of the outer cell layer of the blastocyst and what does it give rise to? Does this layer contribute to the development of the embryo?

How is and egg (oocyte) prepared during oogensis for fertilization? Why is preparation essential to development?