Term
Monotremes are ________ Eutherians are _________ Marsupials are ___________ |
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Definition
Monotremes are _protherians_______ Eutherians are ___placentals_____ Marsupials are ____metatherians_______ |
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Term
Marsupial young are raised in.... |
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Definition
The marsupium-they are born prematurely then climb into it to complete development. |
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Definition
2! She guards them until they hatch. |
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| How are monotremes like reptiles? |
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Definition
the platapus lays eggs like a reptile and also has a sprawled gait like one. |
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How does a monotreme feed young. |
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Definition
"Perspires" milk from her chest into the fur of her abdomen. |
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Term
WHat hormone initiates labor contractions? Where does the hormone come from? |
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Definition
Oxytocin comes from the fetus. |
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Term
Receptors for oxytocin produce _________ . |
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Definition
Prostoglandins causing more contractions. |
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Term
All embryos form _________ _______. |
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Definition
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Definition
Exchanges nutrients, Oxygen, Carbon Dioxide, and wastes between mom & fetus. |
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Definition
Testis Inducer Protein turns boys into men! |
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Term
What are the two pairs of rep. ducts? |
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Definition
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What does the mullerian duct become? The wolfian? |
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Definition
Mullerian-fallopian tubes Wolffian-vas deferens Dont worry while one develops the other dissapears. |
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Term
The penis bone is called.... |
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Definition
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Testosterone in a fetus changes.... |
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Definition
The course of development for naughty bits. TIP turns you into a boy. |
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Term
Male platupuses use _______ _____ against their rivals. |
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Definition
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Term
What does a platypus have to sense where prey is? |
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Definition
Electroreceptors in the bill. |
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Term
What do platypuses have instead of teeth? |
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Definition
Rough plates to cush invertebrate prey |
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Definition
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How do seals use vibrissae? |
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Definition
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Term
Name the forms hair takes on rhinos, armadillos, and porcupines. |
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Definition
In rhinos it forms horns In armadillos and pangolians it forms scales for protection against the ants they eat. In porcupines, echidnas, and hedgehogs, it forms quills. |
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Term
What are Echidnas convergent with? What are their different food niches? |
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Definition
Porcupines and Hedgehogs. Echidnas eat ants, hedgehogs eat bugs, prcupines eat trees. |
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Term
| What glands gave rise to mammary glands? |
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Definition
Sebaceous glands. Oils produced from them keep skin and hair healthy. |
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Term
| Whats interesting about the sebaceous glands in monotremes? |
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Definition
Their abdomen also contains proteins and sugars so they "sweat" milk in their abdominal fur. (milk is released through pores in the skin) |
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Term
| What stimulates milk production? |
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Definition
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Term
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Definition
We all have the same 22 trait coders with at least 1 X chrom. So everyone gets traits for arm muscles, facial hair, pelvises, & nipples. Men can lactate too! |
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Term
One out of every 200 people are born with ________ ________. |
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Definition
Supernmery Nipples! Meaning they have more than one pair. They are underdeveloped and look like a freckle or mole. |
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Term
Most mammals have how many vertebrae? What are the exceptions? |
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Definition
seven sloths have more than seven and can turn heads 180 degrees whales have fused vertebrae, their necks dont bend. |
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Term
| Name the two cervical vertebrae that support the head. What sits on what else? |
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Definition
Atlas sits on top of the Axis |
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