Question | Answer |
How many vaginas does a female kangaroo have? | 3 Two to accept sperm during mating and one for birthing. Male kangaroos have a two-pronged penis.
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When does a human fetus develop fingerprints? | at 3 months
| How long were you a zygote? | Average is half an hour. Then the zygote divided and began forming an embryo.
| What is the smallest cell of the human body? The largest? | Sperm. Egg.
| True or False: Male bees “drones” die during or immediately after mating? | True. The queen bee stores the sperm from several males in her body to fertilize eggs for the rest of her life.
| True or False: Female Black Widow spiders and Praying Mantises eat the males after mating? | Mostly false, though it is common in certain species.
| Name 2 species (or at least 2 types of animals) that can change from male to female or vice versa. | Clownfish and some frog species. They do this to maintain proper ratios for mating.
| Do giraffes give birth standing up or laying down? | Standing up. Which means the baby giraffe falls about 6 feet!
| Does an octopus have live babies or lay eggs? | She lays eggs. And she guards them without eating – and barely moving- until they hatch. Then she dies.
| How long are chipmunks pregnant? | 31 days
| True or False: Penguins mate monogamously (with only their “one true love” other) for life? | False. They only have one mate per season, and will try to find them the next season, but most often do not and choose a new mate.
| What animal produces the world’s longest sperm? | Drosophila bifurca, a species of fruit fly. Uncoiled, their sperm is 2 inches long!
| How many mature eggs does a human female produce in her life? | 300-400. 1/month from puberty through menopause.
| How many sperm are required to produce fraternal twins? | 2, 1 to fertilize each of 2 eggs. Fraternal twins are genetically no more similar to each other than any other siblings.
| How many sperm does it take to produce identical twins? | 1. After the zygote is formed, it splits and develops into 2 separate embryos, both with exactly the same DNA!
| What is the plural of “uterus”? | Uteri
| What are the plurals of “octopus” and “platypus”? | Octopuses and platypuses. OR octopodes and platypodes, but not octopi and platypi.
| An individual with the chromosomes XXY has what condition? Are they male or female? | Klinefelter’s syndrome, they are male because they have a Y chromosome. |