Annotate a diagram of the seminiferous tubule and ovary to indicate the stages of spermatogenesis and oogenesis.
IB Biology
How does the 38-week pregnancy in humans compare to the development of young at birth in other mammals, particularly in terms of size and gestation period?
How does the 38-week pregnancy in humans compare to the development of young at birth in other mammals, particularly in terms of size and gestation period?
How does positive feedback involving estrogen and oxytocin mediate birth?
How does positive feedback involving estrogen and oxytocin mediate birth?
How do estrogen and progesterone secreted by the placenta support pregnancy once it has formed?
How do estrogen and progesterone secreted by the placenta support pregnancy once it has formed?
How does the placenta facilitate the exchange of materials between the mother and fetus, and what are some examples of substances exchanged?
How does the placenta facilitate the exchange of materials between the mother and fetus, and what are some examples of substances exchanged?
How does HCG (human chorionic gonadotropin) stimulate the ovary to secrete progesterone during early pregnancy?
How does HCG (human chorionic gonadotropin) stimulate the ovary to secrete progesterone during early pregnancy?
Why is the implantation of the blastocyst in the endometrium crucial for the continuation of pregnancy?
Why is the implantation of the blastocyst in the endometrium crucial for the continuation of pregnancy?
What mechanisms are involved in preventing polyspermy during fertilization, and why is this important for successful embryo development?
What mechanisms are involved in preventing polyspermy during fertilization, and why is this important for successful embryo development?
What are the key differences between internal and external fertilization in animals, and how do these methods ensure successful reproduction?
What are the key differences between internal and external fertilization in animals, and how do these methods ensure successful reproduction?
In what ways do spermatogenesis and oogenesis differ in terms of the number of gametes produced and the distribution of cytoplasm?
In what ways do spermatogenesis and oogenesis differ in terms of the number of gametes produced and the distribution of cytoplasm?