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A nictitating membrane The nictitating membrane is the THIRD eyelid, the SECOND eyelid that you asked about is just that, the eyelid, just like in humans
The third eyelid on a frog is called a nictitating membrane.
The third tropic level is made up of omnivores. Humans that are omnivores belong to this level. Humans that are vegan or vegetarian belong to the second tropic level.
omasum
YES.They are third level consumers and eat meat,and as humans we are technically meat,therefore food to a lion,thus making us vulnerable to them.Hence,they are harmful to humans unless handled properly.
Also known as the third trimester, it is the final stage of the gestation period where the fetus (or fetuses, depending on the animal in question) experience the most growth in body tissues, and lungs begin to develop and start to become functional.
The third trimester of a cow would be days 195 to 285 of a cow's gestation period. This is a critical period of a cow's pregnancy because the calf is growing more in size than it has in the last two trimesters.
Yes, the complete skeleton is formed by the end of the third month of gestation.
The third period of the Middle Ages was the Late Middle Ages. The first is called the Early Middle Ages or the Dark Age. The second period was the High Middle Ages.
The first three periods of the periodic table are called the first period, second period, and third period.
Usually about 6 months gestation
The Third Reich or the Holocaust
The organs mature.
Mariel Boat Lift was the second wave of immigration. The third wave occurred during Cuba's Special Period in 1994 and they are called Balseros.
third period
The 3rd dynasty began the Middle Kingdom period in Egyptian History.
A young female dachshund can be in heat as long as 21 days. During the first week she may or may not let males mount. Second week she's receptive, third week not so much but still attracting males. This varies with ages, etc. Also, you should not get a female spayed until she is out of heat or well into the third week.