Biology reproduction notes from study guide-Questions and Answers Graded A+

Biology reproduction notes from study guide-Questions and Answers Graded A+ sexual reproduction - ANSWER-Involves the fusion of male and female sex cells, known as gametes, to form a zygote. In sexual reproduction the off spring produced - ANSWER-Are genetically different from each other and from their parents. This equals more variation among the offspring. ASexual - ANSWER-There is only one parent. All the offspring are genetically identical to the parent as they inherit exactly the same genetic information. In Asexual reproduction (variation) - ANSWER-There is very little variation amongst the offspring. Variation that occurs in asexual reproduction is due - ANSWER-Because of the environment for example the availability of nutrients and water determine how well organisms grow. Clone - ANSWER-A group of individuals that are all genetically identical The testes are the male - ANSWER-Gonads The testes produce - ANSWER-The male gametes or spermatozoa and secrete the male hormone testosterone. The function of the organ testis - ANSWER-Produces sperm(male gametes) in huge numbers from puberty throughout the rest of life Shorten definition of spermatozoa - ANSWER-Sperm Scrotum function in reproduction - ANSWER-Holds the testes at a temperature slightly lower than body temperature Sperm duct functioning reprodution - ANSWER-Transfers sperm from the testes to the urethra in the penis Prostrate gland function in reproduction - ANSWER-Secretes seminal fluid containing sugars as food for the sperm Penis function in reproduction - ANSWER-Inserted into the vagina, releases seamen that contain sperm