Human Life Flashcards
What is the difference between sexual and asexual reproduction?
Asexual reproduction generates offspring that are genetically identical to a single parent. In sexual reproduction, two parents contribute genetic information to produce unique offspring.
Describe the journey of the sperm
*The sperm are released from the epididymis and travel along the vas deferens out of the penis through the urethra.
*Spermatozoa are deposited at the top of the vagina and swim through the cervix and along the lining of the uterus , into the oviduct, where they meet with the egg cell.
- They have to fight to get into the egg cell; first come first served, The nucleus will only let in one sperm before the corona radiata will close up and prevent more from coming in.
What is a species?
A group of similar organisms that can breed and produce fertile offspring.
Explain why physical strength is an example of a characteristic that is due to both inherited and environmental factors
Size and srength of your muscles is partly due to the genes you inherit, but you diet and excercise also affects srength and muscle growth.
What is the name of the tube where sperm travels from the testes to the urethra?
Sperm duct
Where are eggs released each month between puberty and menopause?
Ovaries
Where does the baby grow and develop during pregnancy?
Uterus
Where are sperm cells made?
Testis
What is the name of the tube where urine and semen flows out of the body?
Urethra
A tattoo is an exaple of what kind of characteristic?
Environmental
What is a gamete?
Another name for a sex cell
What does the nucleus do in a gamete?
Carries the genetic information
What is the name for a fertilised egg?
Zygote
